Dell PowerSwitch S6000 ON User guide

Dell Conguration Guide for the S6000–ON

System

9.11(2.1P1)

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 - 06

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.....................................................................................................................................142

Congure BFD for IS-IS...........................................................................................................................................145

Congure BFD for BGP........................................................................................................................................... 147

Congure BFD for VRRP.........................................................................................................................................153

Conguring Protocol Liveness................................................................................................................................156

Troubleshooting BFD................................................................................................................................................156

8 Border Gateway Protocol IPv4 (BGPv4).................................................................................................... 158

Autonomous Systems (AS)...........................................................................................................................................158

Sessions and Peers........................................................................................................................................................ 160

Establish a Session...................................................................................................................................................160

Route Reectors............................................................................................................................................................. 161

BGP Attributes................................................................................................................................................................162

Best Path Selection Criteria....................................................................................................................................162

Weight........................................................................................................................................................................164

Local Preference.......................................................................................................................................................164

6

Contents

Multi-Exit Discriminators (MEDs)...........................................................................................................................165

Origin..........................................................................................................................................................................166

AS Path...................................................................................................................................................................... 167

Next Hop................................................................................................................................................................... 167

Multiprotocol BGP.......................................................................................................................................................... 167

Implement BGP with Dell Networking OS...................................................................................................................168

Additional Path (Add-Path) Support......................................................................................................................168

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 168

Ignore Router-ID in Best-Path Calculation............................................................................................................ 169

Four-Byte AS Numbers........................................................................................................................................... 169

AS4 Number Representation.................................................................................................................................. 169

AS Number Migration............................................................................................................................................... 171

BGP4 Management Information Base (MIB)........................................................................................................172

Important Points to Remember.............................................................................................................................. 172

Conguration Information..............................................................................................................................................173

BGP Conguration..........................................................................................................................................................173

Enabling BGP.............................................................................................................................................................174

Conguring AS4 Number Representations............................................................................................................177

Conguring Peer Groups......................................................................................................................................... 179

Conguring BGP Fast Fall-Over..............................................................................................................................181

Conguring Passive Peering................................................................................................................................... 183

Maintaining Existing AS Numbers During an AS Migration................................................................................. 183

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 184

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

Enabling Neighbor Graceful Restart...................................................................................................................... 186

Filtering on an AS-Path Attribute........................................................................................................................... 186

Regular Expressions as Filters.................................................................................................................................188

Redistributing Routes...............................................................................................................................................189

Enabling Additional Paths........................................................................................................................................ 190

Conguring IP Community Lists.............................................................................................................................190

Conguring an IP Extended Community List.........................................................................................................191

Filtering Routes with Community Lists..................................................................................................................192

Manipulating the COMMUNITY Attribute.............................................................................................................193

Changing MED Attributes....................................................................................................................................... 194

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 194

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes.............195

Changing the WEIGHT Attribute............................................................................................................................196

Enabling Multipath....................................................................................................................................................196

Filtering BGP Routes................................................................................................................................................196

Filtering BGP Routes Using Route Maps...............................................................................................................198

Filtering BGP Routes Using AS-PATH Information.............................................................................................. 198

Conguring BGP Route Reectors........................................................................................................................ 199

Aggregating Routes.................................................................................................................................................200

Conguring BGP Confederations.......................................................................................................................... 200

Enabling Route Flap Dampening.............................................................................................................................201

Contents

7

Changing BGP Timers.............................................................................................................................................203

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................203

Enabling or disabling BGP neighbors.....................................................................................................................204

Route Map Continue............................................................................................................................................... 206

Enabling MBGP Congurations................................................................................................................................... 206

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor..........................................207

BGP Regular Expression Optimization........................................................................................................................ 207

Debugging BGP..............................................................................................................................................................207

Storing Last and Bad PDUs....................................................................................................................................208

Capturing PDUs.......................................................................................................................................................209

PDU Counters...........................................................................................................................................................210

Sample Congurations...................................................................................................................................................210

9 Content Addressable Memory (CAM).........................................................................................................217

CAM Allocation............................................................................................................................................................... 217

Test CAM Usage.............................................................................................................................................................219

View CAM Proles..........................................................................................................................................................219

View CAM-ACL Settings.............................................................................................................................................. 220

View CAM Usage............................................................................................................................................................221

CAM Optimization......................................................................................................................................................... 222

Troubleshoot CAM Proling..........................................................................................................................................222

QoS CAM Region Limitation...................................................................................................................................222

Syslog Error When the Table is Full....................................................................................................................... 222

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................223

Syslog Warning for Discrepancies Between Congured Extended Prexes....................................................223

Unied Forwarding Table (UFT) Modes......................................................................................................................223

Conguring UFT Modes..........................................................................................................................................223

10 Control Plane Policing (CoPP)................................................................................................................. 225

Congure Control Plane Policing................................................................................................................................. 226

Conguring CoPP for Protocols.............................................................................................................................227

Conguring CoPP for CPU Queues...................................................................................................................... 229

Displaying CoPP Conguration ............................................................................................................................. 230

11 Data Center Bridging (DCB)......................................................................................................................232

Ethernet Enhancements in Data Center Bridging..................................................................................................... 232

Priority-Based Flow Control................................................................................................................................... 233

Enhanced Transmission Selection..........................................................................................................................234

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................235

Data Center Bridging in a Trac Flow...................................................................................................................236

Enabling Data Center Bridging.....................................................................................................................................236

DCB Maps and its Attributes..................................................................................................................................237

Data Center Bridging: Default Conguration..............................................................................................................238

Conguring Priority-Based Flow Control....................................................................................................................238

Conguring Lossless Queues................................................................................................................................. 239

Conguring PFC in a DCB Map.................................................................................................................................... 241

8

Contents

PFC Conguration Notes........................................................................................................................................ 241

PFC Prerequisites and Restrictions....................................................................................................................... 242

Applying a DCB Map on a Port.................................................................................................................................... 242

Conguring PFC without a DCB Map.........................................................................................................................243

Conguring Lossless QueuesExample:..................................................................................................................243

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................245

Pause and Resume of Trac..................................................................................................................................245

Buer Sizes for Lossless or PFC Packets............................................................................................................ 245

Behavior of Tagged Packets.........................................................................................................................................246

Conguration Example for DSCP and PFC Priorities................................................................................................246

SNMP Support for PFC and Buer Statistics Tracking............................................................................................247

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................247

PFC and ETS Conguration Examples........................................................................................................................248

Using PFC to Manage Converged Ethernet Trac...................................................................................................248

Operations on Untagged Packets................................................................................................................................248

Generation of PFC for a Priority for Untagged Packets...........................................................................................249

Congure Enhanced Transmission Selection..............................................................................................................249

ETS Prerequisites and Restrictions....................................................................................................................... 249

Creating an ETS Priority Group..............................................................................................................................249

ETS Operation with DCBx......................................................................................................................................250

Conguring Bandwidth Allocation for DCBx CIN................................................................................................. 251

Conguring ETS in a DCB Map..............................................................................................................................252

Hierarchical Scheduling in ETS Output Policies.........................................................................................................253

Using ETS to Manage Converged Ethernet Trac...................................................................................................253

Applying DCB Policies in a Switch Stack.................................................................................................................... 254

Congure a DCBx Operation........................................................................................................................................254

DCBx Operation.......................................................................................................................................................254

DCBx Port Roles...................................................................................................................................................... 254

DCB Conguration Exchange................................................................................................................................ 256

Conguration Source Election............................................................................................................................... 256

Propagation of DCB Information............................................................................................................................257

Auto-Detection and Manual Conguration of the DCBx Version.......................................................................257

DCBx Example..........................................................................................................................................................257

DCBx Prerequisites and Restrictions.....................................................................................................................258

Conguring DCBx....................................................................................................................................................258

Verifying the DCB Conguration................................................................................................................................. 262

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

Conguring the Dynamic Buer Method.................................................................................................................... 271

Sample DCB Conguration........................................................................................................................................... 272

PFC and ETS Conguration Command Examples...............................................................................................273

12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 274

DHCP Packet Format and Options..............................................................................................................................274

Assign an IP Address using DHCP............................................................................................................................... 276

Implementation Information.......................................................................................................................................... 277

Congure the System to be a DHCP Server.............................................................................................................. 277

Contents

9

Conguring the Server for Automatic Address Allocation.................................................................................. 278

Specifying a Default Gateway................................................................................................................................ 279

Congure a Method of Hostname Resolution......................................................................................................279

Using DNS for Address Resolution........................................................................................................................ 279

Using NetBIOS WINS for Address Resolution..................................................................................................... 280

Creating Manual Binding Entries............................................................................................................................280

Debugging the DHCP Server.................................................................................................................................280

Using DHCP Clear Commands............................................................................................................................... 281

Congure the System to be a DHCP Client................................................................................................................281

Conguring the DHCP Client System....................................................................................................................281

DHCP Client on a Management Interface............................................................................................................ 283

DHCP Client Operation with Other Features.......................................................................................................283

Congure the System for User Port Stacking (Option 230)....................................................................................284

Congure Secure DHCP............................................................................................................................................... 284

Option 82..................................................................................................................................................................285

DHCP Snooping.......................................................................................................................................................285

Drop DHCP Packets on Snooped VLANs Only....................................................................................................288

Dynamic ARP Inspection.........................................................................................................................................289

Conguring Dynamic ARP Inspection................................................................................................................... 290

Source Address Validation............................................................................................................................................. 291

Enabling IP Source Address Validation...................................................................................................................291

DHCP MAC Source Address Validation................................................................................................................ 292

Enabling IP+MAC Source Address Validation.......................................................................................................292

Viewing the Number of SAV Dropped Packets....................................................................................................293

Clearing the Number of SAV Dropped Packets................................................................................................... 293

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 294

ECMP for Flow-Based Anity.....................................................................................................................................294

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

Enabling Deterministic ECMP Next Hop.............................................................................................................. 294

Conguring the Hash Algorithm Seed.................................................................................................................. 295

Link Bundle Monitoring................................................................................................................................................. 295

Managing ECMP Group Paths...............................................................................................................................296

Creating an ECMP Group Bundle..........................................................................................................................296

Modifying the ECMP Group Threshold................................................................................................................ 296

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table...................................... 297

Support for ECMP in host table............................................................................................................................ 298

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 298

14 FIP Snooping............................................................................................................................................299

Fibre Channel over Ethernet........................................................................................................................................299

Ensure Robustness in a Converged Ethernet Network............................................................................................299

FIP Snooping on Ethernet Bridges...............................................................................................................................301

Using FIP Snooping....................................................................................................................................................... 303

FIP Snooping Prerequisites.....................................................................................................................................303

Important Points to Remember............................................................................................................................. 303

10

Contents

Enabling the FCoE Transit Feature........................................................................................................................304

Enable FIP Snooping on VLANs.............................................................................................................................304

Congure the FC-MAP Value................................................................................................................................ 305

Congure a Port for a Bridge-to-Bridge Link.......................................................................................................305

Congure a Port for a Bridge-to-FCF Link...........................................................................................................305

Impact on Other Software Features..................................................................................................................... 305

FIP Snooping Restrictions...................................................................................................................................... 306

Conguring FIP Snooping.......................................................................................................................................306

Displaying FIP Snooping Information...........................................................................................................................307

FCoE Transit Conguration Example........................................................................................................................... 312

15 Flex Hash and Optimized Boot-Up............................................................................................................ 314

Flex Hash Capability Overview..................................................................................................................................... 314

Conguring the Flex Hash Mechanism........................................................................................................................314

Conguring Fast Boot and LACP Fast Switchover....................................................................................................315

Optimizing the Boot Time............................................................................................................................................. 315

Booting Process When Optimized Boot Time Mechanism is Enabled...............................................................315

Guidelines for Conguring Optimized Booting Mechanism.................................................................................316

Interoperation of Applications with Fast Boot and System States...........................................................................317

LACP and IPv4 Routing........................................................................................................................................... 317

LACP and IPv6 Routing........................................................................................................................................... 317

BGP Graceful Restart.............................................................................................................................................. 318

Cold Boot Caused by Power Cycling the System................................................................................................ 318

Unexpected Reload of the System.........................................................................................................................318

Software Upgrade.................................................................................................................................................... 318

LACP Fast Switchover.............................................................................................................................................318

Changes to BGP Multipath..................................................................................................................................... 319

Delayed Installation of ECMP Routes Into BGP....................................................................................................319

RDMA Over Converged Ethernet (RoCE) Overview................................................................................................ 319

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 320

16 Force10 Resilient Ring Protocol (FRRP)....................................................................................................321

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

Ring Status............................................................................................................................................................... 322

Multiple FRRP Rings................................................................................................................................................322

Important FRRP Points...........................................................................................................................................323

Important FRRP Concepts..................................................................................................................................... 324

Implementing FRRP.......................................................................................................................................................325

FRRP Conguration...................................................................................................................................................... 325

Creating the FRRP Group.......................................................................................................................................325

Conguring the Control VLAN...............................................................................................................................326

Conguring and Adding the Member VLANs.......................................................................................................327

Setting the FRRP Timers........................................................................................................................................328

Clearing the FRRP Counters..................................................................................................................................328

Viewing the FRRP Conguration...........................................................................................................................328

Viewing the FRRP Information...............................................................................................................................328

Contents

11

Troubleshooting FRRP.................................................................................................................................................. 329

Conguration Checks..............................................................................................................................................329

Sample Conguration and Topology............................................................................................................................329

FRRP Support on VLT...................................................................................................................................................330

Example Scenario..................................................................................................................................................... 331

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

17 GARP VLAN Registration Protocol (GVRP).............................................................................................. 333

Important Points to Remember....................................................................................................................................333

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

Related Conguration Tasks................................................................................................................................... 334

Enabling GVRP Globally................................................................................................................................................ 335

Enabling GVRP on a Layer 2 Interface........................................................................................................................335

Congure GVRP Registration...................................................................................................................................... 335

Congure a GARP Timer.............................................................................................................................................. 336

18 Internet Group Management Protocol (IGMP)..........................................................................................337

IGMP Implementation Information...............................................................................................................................337

IGMP Protocol Overview.............................................................................................................................................. 337

IGMP Version 2........................................................................................................................................................ 337

IGMP Version 3........................................................................................................................................................ 339

Congure IGMP............................................................................................................................................................. 342

Related Conguration Tasks................................................................................................................................... 342

Viewing IGMP Enabled Interfaces............................................................................................................................... 343

Selecting an IGMP Version........................................................................................................................................... 343

Viewing IGMP Groups...................................................................................................................................................343

Adjusting Timers............................................................................................................................................................ 344

Adjusting Query and Response Timers................................................................................................................. 344

Enabling IGMP Immediate-Leave.................................................................................................................................345

IGMP Snooping..............................................................................................................................................................345

IGMP Snooping Implementation Information....................................................................................................... 345

Conguring IGMP Snooping...................................................................................................................................345

Removing a Group-Port Association.....................................................................................................................346

Disabling Multicast Flooding...................................................................................................................................346

Specifying a Port as Connected to a Multicast Router...................................................................................... 346

Conguring the Switch as Querier.........................................................................................................................347

Fast Convergence after MSTP Topology Changes................................................................................................... 347

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................348

Protocol Separation.................................................................................................................................................348

Enabling and Disabling Management Egress Interface Selection...................................................................... 349

Handling of Management Route Conguration...................................................................................................350

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

Handling of Switch-Destined Trac...................................................................................................................... 351

Handling of Transit Trac (Trac Separation).................................................................................................... 352

Mapping of Management Applications and Trac Type.....................................................................................352

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

12

Contents

Behavior of Various Applications for Switch-Destined Trac ...........................................................................354

Interworking of EIS With Various Applications.....................................................................................................355

Designating a Multicast Router Interface...................................................................................................................355

19 Interfaces.................................................................................................................................................356

Basic Interface Conguration.......................................................................................................................................356

Advanced Interface Conguration...............................................................................................................................356

Interface Types...............................................................................................................................................................357

View Basic Interface Information................................................................................................................................. 357

Resetting an Interface to its Factory Default State...................................................................................................359

Enabling a Physical Interface........................................................................................................................................360

Physical Interfaces.........................................................................................................................................................360

Conguration Task List for Physical Interfaces....................................................................................................360

40G to 1G Breakout Cable Adaptor.......................................................................................................................360

Overview of Layer Modes....................................................................................................................................... 361

Conguring Layer 2 (Data Link) Mode.................................................................................................................. 361

Conguring Layer 2 (Interface) Mode.................................................................................................................. 362

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

Conguring Layer 3 (Interface) Mode.................................................................................................................. 363

Egress Interface Selection (EIS)..................................................................................................................................363

Important Points to Remember............................................................................................................................. 364

Conguring EIS........................................................................................................................................................ 364

Management Interfaces................................................................................................................................................364

Conguring Management Interfaces.....................................................................................................................364

Conguring a Management Interface on an Ethernet Port............................................................................... 366

VLAN Interfaces.............................................................................................................................................................367

Loopback Interfaces...................................................................................................................................................... 367

Null Interfaces................................................................................................................................................................ 368

Port Channel Interfaces................................................................................................................................................368

Port Channel Denition and Standards.................................................................................................................368

Port Channel Benets.............................................................................................................................................368

Port Channel Implementation.................................................................................................................................369

Interfaces in Port Channels.................................................................................................................................... 369

Conguration Tasks for Port Channel Interfaces.................................................................................................370

Creating a Port Channel..........................................................................................................................................370

Adding a Physical Interface to a Port Channel.....................................................................................................370

Reassigning an Interface to a New Port Channel................................................................................................ 372

Conguring the Minimum Oper Up Links in a Port Channel...............................................................................373

Adding or Removing a Port Channel from a VLAN..............................................................................................373

Assigning an IP Address to a Port Channel...........................................................................................................374

Deleting or Disabling a Port Channel..................................................................................................................... 374

Load Balancing Through Port Channels................................................................................................................375

Changing the Hash Algorithm................................................................................................................................ 375

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

Interface Range........................................................................................................................................................376

Bulk Conguration Examples.................................................................................................................................. 377

Contents

13

Dening Interface Range Macros................................................................................................................................ 378

Dene the Interface Range.....................................................................................................................................378

Choosing an Interface-Range Macro.................................................................................................................... 378

Monitoring and Maintaining Interfaces........................................................................................................................379

Maintenance Using TDR.........................................................................................................................................380

Non Dell-Qualied Transceivers................................................................................................................................... 380

Splitting 40G Ports without Reload............................................................................................................................. 381

Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 383

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................383

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

Example Scenarios...................................................................................................................................................384

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................385

Link Dampening..............................................................................................................................................................386

Important Points to Remember............................................................................................................................. 386

Enabling Link Dampening........................................................................................................................................386

Link Bundle Monitoring................................................................................................................................................. 388

Using Ethernet Pause Frames for Flow Control........................................................................................................ 388

Enabling Pause Frames...........................................................................................................................................389

Congure the MTU Size on an Interface....................................................................................................................389

Port-Pipes.......................................................................................................................................................................390

Auto-Negotiation on Ethernet Interfaces...................................................................................................................390

Setting the Speed of Ethernet Interfaces.............................................................................................................391

Set Auto-Negotiation Options................................................................................................................................392

View Advanced Interface Information.........................................................................................................................393

Conguring the Interface Sampling Size.............................................................................................................. 393

Dynamic Counters......................................................................................................................................................... 395

Clearing Interface Counters................................................................................................................................... 395

Compressing Conguration Files................................................................................................................................. 396

20 IPv4 Routing............................................................................................................................................399

IP Addresses...................................................................................................................................................................400

Implementation Information................................................................................................................................... 400

Conguration Tasks for IP Addresses......................................................................................................................... 400

Assigning IP Addresses to an Interface.......................................................................................................................400

Conguring Static Routes............................................................................................................................................. 401

Congure Static Routes for the Management Interface..........................................................................................402

Using the Congured Source IP Address in ICMP Messages..................................................................................403

Conguring the ICMP Source Interface............................................................................................................... 403

Conguring the Duration to Establish a TCP Connection........................................................................................ 403

Enabling Directed Broadcast........................................................................................................................................ 404

Resolution of Host Names............................................................................................................................................404

Enabling Dynamic Resolution of Host Names............................................................................................................404

Specifying the Local System Domain and a List of Domains................................................................................... 405

Conguring DNS with Traceroute............................................................................................................................... 405

ARP................................................................................................................................................................................. 406

Conguration Tasks for ARP........................................................................................................................................ 406

14

Contents

Conguring Static ARP Entries....................................................................................................................................406

Enabling Proxy ARP.......................................................................................................................................................407

Clearing ARP Cache...................................................................................................................................................... 407

ARP Learning via Gratuitous ARP................................................................................................................................407

Enabling ARP Learning via Gratuitous ARP................................................................................................................408

ARP Learning via ARP Request................................................................................................................................... 408

Conguring ARP Retries...............................................................................................................................................409

ICMP............................................................................................................................................................................... 409

Conguration Tasks for ICMP......................................................................................................................................409

Enabling ICMP Unreachable Messages...................................................................................................................... 409

UDP Helper..................................................................................................................................................................... 410

Congure UDP Helper............................................................................................................................................. 410

Important Points to Remember.............................................................................................................................. 410

Enabling UDP Helper......................................................................................................................................................410

Conguring a Broadcast Address..................................................................................................................................411

Congurations Using UDP Helper.................................................................................................................................411

UDP Helper with Broadcast-All Addresses.................................................................................................................. 411

UDP Helper with Subnet Broadcast Addresses..........................................................................................................412

UDP Helper with Congured Broadcast Addresses...................................................................................................412

UDP Helper with No Congured Broadcast Addresses.............................................................................................413

Troubleshooting UDP Helper.........................................................................................................................................413

21 IPv6 Routing............................................................................................................................................. 414

Protocol Overview..........................................................................................................................................................414

Extended Address Space........................................................................................................................................ 415

Stateless Autoconguration....................................................................................................................................415

IPv6 Headers.............................................................................................................................................................415

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support.................................................................... 416

IPv6 Header Fields....................................................................................................................................................417

Extension Header Fields.......................................................................................................................................... 419

Addressing................................................................................................................................................................ 420

Implementing IPv6 with Dell Networking OS..............................................................................................................421

ICMPv6...........................................................................................................................................................................422

Path MTU Discovery..................................................................................................................................................... 423

IPv6 Neighbor Discovery.............................................................................................................................................. 423

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................424

Conguring the IPv6 Recursive DNS Server....................................................................................................... 424

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................425

Displaying IPv6 RDNSS Information......................................................................................................................425

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 426

Conguration Tasks for IPv6........................................................................................................................................ 426

Adjusting Your CAM-Prole....................................................................................................................................426

Assigning an IPv6 Address to an Interface........................................................................................................... 427

Assigning a Static IPv6 Route................................................................................................................................428

Conguring Telnet with IPv6..................................................................................................................................428

SNMP over IPv6......................................................................................................................................................428

Contents

15

Displaying IPv6 Information....................................................................................................................................429

Displaying an IPv6 Interface Information.............................................................................................................. 429

Showing IPv6 Routes..............................................................................................................................................430

Showing the Running-Conguration for an Interface..........................................................................................431

Clearing IPv6 Routes...............................................................................................................................................432

Disabling ND Entry Timeout................................................................................................................................... 432

Conguring IPv6 RA Guard.......................................................................................................................................... 432

Conguring IPv6 RA Guard on an Interface.........................................................................................................434

Monitoring IPv6 RA Guard..................................................................................................................................... 435

22 iSCSI Optimization...................................................................................................................................436

iSCSI Optimization Overview....................................................................................................................................... 436

Monitoring iSCSI Trac Flows...............................................................................................................................438

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 438

Information Monitored in iSCSI Trac Flows.......................................................................................................438

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 439

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................439

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................440

Enable and Disable iSCSI Optimization................................................................................................................. 440

Default iSCSI Optimization Values................................................................................................................................441

iSCSI Optimization Prerequisites.................................................................................................................................. 441

Conguring iSCSI Optimization.................................................................................................................................... 441

Displaying iSCSI Optimization Information..................................................................................................................443

23 Intermediate System to Intermediate System.......................................................................................... 445

IS-IS Protocol Overview............................................................................................................................................... 445

IS-IS Addressing.............................................................................................................................................................445

Multi-Topology IS-IS...................................................................................................................................................... 446

Transition Mode....................................................................................................................................................... 446

Interface Support.....................................................................................................................................................447

Adjacencies...............................................................................................................................................................447

Graceful Restart.............................................................................................................................................................447

Timers........................................................................................................................................................................447

Implementation Information..........................................................................................................................................447

Conguration Information.............................................................................................................................................448

Conguration Tasks for IS-IS..................................................................................................................................449

Conguring the Distance of a Route.....................................................................................................................456

Changing the IS-Type.............................................................................................................................................. 457

Redistributing IPv4 Routes.....................................................................................................................................459

Redistributing IPv6 Routes.....................................................................................................................................460

Conguring Authentication Passwords..................................................................................................................461

Setting the Overload Bit..........................................................................................................................................461

Debugging IS-IS....................................................................................................................................................... 462

IS-IS Metric Styles.........................................................................................................................................................463

Congure Metric Values............................................................................................................................................... 463

Maximum Values in the Routing Table.................................................................................................................. 463

16

Contents

Change the IS-IS Metric Style in One Level Only................................................................................................463

Leaks from One Level to Another..........................................................................................................................465

Sample Congurations..................................................................................................................................................466

24 Link Aggregation Control Protocol (LACP).............................................................................................. 468

Introduction to Dynamic LAGs and LACP.................................................................................................................. 468

Important Points to Remember............................................................................................................................. 468

LACP Modes............................................................................................................................................................ 469

Conguring LACP Commands...............................................................................................................................469

LACP Conguration Tasks............................................................................................................................................ 470

Creating a LAG.........................................................................................................................................................470

Conguring the LAG Interfaces as Dynamic........................................................................................................ 470

Setting the LACP Long Timeout............................................................................................................................ 471

Monitoring and Debugging LACP...........................................................................................................................471

Shared LAG State Tracking...........................................................................................................................................472

Conguring Shared LAG State Tracking............................................................................................................... 472

Important Points about Shared LAG State Tracking............................................................................................474

LACP Basic Conguration Example.............................................................................................................................474

Congure a LAG on ALPHA....................................................................................................................................474

25 Layer 2.....................................................................................................................................................483

Manage the MAC Address Table................................................................................................................................. 483

Clearing the MAC Address Table........................................................................................................................... 483

Setting the Aging Time for Dynamic Entries........................................................................................................483

Conguring a Static MAC Address........................................................................................................................484

Displaying the MAC Address Table........................................................................................................................ 484

MAC Learning Limit....................................................................................................................................................... 484

Setting the MAC Learning Limit............................................................................................................................ 485

mac learning-limit Dynamic.................................................................................................................................... 485

mac learning-limit mac-address-sticky................................................................................................................. 485

mac learning-limit station-move............................................................................................................................ 486

mac learning-limit no-station-move...................................................................................................................... 486

Learning Limit Violation Actions.............................................................................................................................486

Setting Station Move Violation Actions.................................................................................................................487

Recovering from Learning Limit and Station Move Violations............................................................................487

Disabling MAC Address Learning on the System.................................................................................................488

NIC Teaming................................................................................................................................................................... 488

Congure Redundant Pairs...........................................................................................................................................489

Important Points about Conguring Redundant Pairs.........................................................................................491

Far-End Failure Detection.............................................................................................................................................492

FEFD State Changes...............................................................................................................................................493

Conguring FEFD.................................................................................................................................................... 494

Enabling FEFD on an Interface...............................................................................................................................494

Debugging FEFD......................................................................................................................................................495

26 Link Layer Discovery Protocol (LLDP)......................................................................................................497

Contents

17

802.1AB (LLDP) Overview............................................................................................................................................497

Protocol Data Units..................................................................................................................................................497

Optional TLVs.................................................................................................................................................................498

Management TLVs.................................................................................................................................................. 498

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 500

TIA Organizationally Specic TLVs........................................................................................................................500

Congure LLDP............................................................................................................................................................. 504

Related Conguration Tasks...................................................................................................................................504

Important Points to Remember............................................................................................................................. 504

LLDP Compatibility..................................................................................................................................................505

CONFIGURATION versus INTERFACE Congurations............................................................................................505

Enabling LLDP................................................................................................................................................................505

Disabling and Undoing LLDP..................................................................................................................................506

Enabling LLDP on Management Ports........................................................................................................................506

Disabling and Undoing LLDP on Management Ports..........................................................................................506

Advertising TLVs............................................................................................................................................................506

Viewing the LLDP Conguration................................................................................................................................. 508

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 508

Conguring LLDPDU Intervals.....................................................................................................................................509

Conguring Transmit and Receive Mode.................................................................................................................... 510

Conguring the Time to Live Value.............................................................................................................................. 510

Debugging LLDP............................................................................................................................................................. 511

Relevant Management Objects.................................................................................................................................... 512

27 Microsoft Network Load Balancing........................................................................................................... 517

NLB Unicast Mode Scenario.........................................................................................................................................517

NLB Multicast Mode Scenario......................................................................................................................................517

Limitations of the NLB Feature.....................................................................................................................................518

Microsoft Clustering.......................................................................................................................................................518

Enable and Disable VLAN Flooding ............................................................................................................................. 518

Conguring a Switch for NLB ......................................................................................................................................518

Enabling a Switch for Multicast NLB..................................................................................................................... 519

28 Multicast Source Discovery Protocol (MSDP)......................................................................................... 520

Protocol Overview.........................................................................................................................................................520

Anycast RP......................................................................................................................................................................521

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

Congure Multicast Source Discovery Protocol........................................................................................................522

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

Enable MSDP................................................................................................................................................................. 526

Manage the Source-Active Cache.............................................................................................................................. 527

Viewing the Source-Active Cache.........................................................................................................................527

Limiting the Source-Active Cache.........................................................................................................................527

Clearing the Source-Active Cache........................................................................................................................ 528

Enabling the Rejected Source-Active Cache....................................................................................................... 528

Accept Source-Active Messages that Fail the RFP Check......................................................................................528

18

Contents

Specifying Source-Active Messages........................................................................................................................... 531

Limiting the Source-Active Messages from a Peer...................................................................................................532

Preventing MSDP from Caching a Local Source.......................................................................................................532

Preventing MSDP from Caching a Remote Source.................................................................................................. 533

Preventing MSDP from Advertising a Local Source..................................................................................................533

Logging Changes in Peership States...........................................................................................................................534

Terminating a Peership..................................................................................................................................................534

Clearing Peer Statistics.................................................................................................................................................535

Debugging MSDP..........................................................................................................................................................535

MSDP with Anycast RP................................................................................................................................................536

Conguring Anycast RP................................................................................................................................................537

Reducing Source-Active Message Flooding.........................................................................................................538

Specifying the RP Address Used in SA Messages.............................................................................................. 538

MSDP Sample Congurations..................................................................................................................................... 540

29 Multiple Spanning Tree Protocol (MSTP)................................................................................................ 543

Protocol Overview.........................................................................................................................................................543

Spanning Tree Variations...............................................................................................................................................544

Implementation Information....................................................................................................................................544

Congure Multiple Spanning Tree Protocol................................................................................................................544

Related Conguration Tasks...................................................................................................................................545

Enable Multiple Spanning Tree Globally...................................................................................................................... 545

Adding and Removing Interfaces.................................................................................................................................545

Creating Multiple Spanning Tree Instances................................................................................................................ 546

Inuencing MSTP Root Selection................................................................................................................................547

Interoperate with Non-Dell Bridges.............................................................................................................................548

Changing the Region Name or Revision..................................................................................................................... 548

Modifying Global Parameters.......................................................................................................................................548

Modifying the Interface Parameters........................................................................................................................... 550

Conguring an EdgePort...............................................................................................................................................551

Flush MAC Addresses after a Topology Change........................................................................................................ 551

MSTP Sample Congurations......................................................................................................................................552

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

CongurationSFTOS Example Running-Conguration.......................................................................................552

Debugging and Verifying MSTP Congurations........................................................................................................ 556

30 Multicast Features...................................................................................................................................558

Enabling IP Multicast.....................................................................................................................................................558

Implementation Information......................................................................................................................................... 558

Multicast Policies...........................................................................................................................................................559

IPv4 Multicast Policies............................................................................................................................................559

Understanding Multicast Traceroute (mtrace).......................................................................................................... 566

Important Points to Remember..............................................................................................................................567

Printing Multicast Traceroute (mtrace) Paths............................................................................................................567

Supported Error Codes.................................................................................................................................................568

mtrace Scenarios...........................................................................................................................................................569

Contents

19

31 Object Tracking........................................................................................................................................ 575

Object Tracking Overview............................................................................................................................................ 575

Track Layer 2 Interfaces..........................................................................................................................................576

Track Layer 3 Interfaces..........................................................................................................................................576

Track IPv4 and IPv6 Routes....................................................................................................................................577

Set Tracking Delays..................................................................................................................................................578

VRRP Object Tracking.............................................................................................................................................578

Object Tracking Conguration......................................................................................................................................578

Tracking a Layer 2 Interface................................................................................................................................... 578

Tracking a Layer 3 Interface................................................................................................................................... 579

Track an IPv4/IPv6 Route.......................................................................................................................................581

Displaying Tracked Objects...........................................................................................................................................584

32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................586

Protocol Overview.........................................................................................................................................................586

Autonomous System (AS) Areas........................................................................................................................... 586

Area Types................................................................................................................................................................ 587

Networks and Neighbors........................................................................................................................................588

Router Types............................................................................................................................................................ 588

Designated and Backup Designated Routers.......................................................................................................590

Link-State Advertisements (LSAs)........................................................................................................................590

Router Priority and Cost..........................................................................................................................................591

OSPF with Dell Networking OS...................................................................................................................................592

Graceful Restart.......................................................................................................................................................593

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................594

Multi-Process OSPFv2 with VRF..........................................................................................................................594

RFC-2328 Compliant OSPF Flooding................................................................................................................... 594

OSPF ACK Packing................................................................................................................................................. 595

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 595

Conguration Information.............................................................................................................................................596

Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 596

Conguration Task List for OSPFv3 (OSPF for IPv6)............................................................................................... 610

Enabling IPv6 Unicast Routing................................................................................................................................ 611

Applying cost for OSPFv3........................................................................................................................................611

Assigning IPv6 Addresses on an Interface............................................................................................................ 612

Assigning Area ID on an Interface...........................................................................................................................612

Assigning OSPFv3 Process ID and Router ID Globally.........................................................................................612

Assigning OSPFv3 Process ID and Router ID to a VRF.......................................................................................613

Conguring Stub Areas............................................................................................................................................613

Conguring Passive-Interface.................................................................................................................................614

Redistributing Routes...............................................................................................................................................614

Conguring a Default Route....................................................................................................................................614

Enabling OSPFv3 Graceful Restart........................................................................................................................615

OSPFv3 Authentication Using IPsec......................................................................................................................617

Troubleshooting OSPFv3........................................................................................................................................623

20

Contents

Dell PowerSwitch S6000 ON User guide

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