Dell PowerSwitch S6000 ON User manual

Dell Conguration Guide for the S6000–ON System

9.7(0.0)

Notes, Cautions, and Warnings

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

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

problem.

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

™

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

trademarks of their respective companies.

2015 - 02

Rev. A00

Contents

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

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

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

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

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

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

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

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

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

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

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

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

Command History............................................................................................................................................................ 39

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

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

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

Console Access.................................................................................................................................................................41

Serial Console............................................................................................................................................................. 41

Default Conguration....................................................................................................................................................... 42

Conguring a Host Name................................................................................................................................................. 42

Accessing the System Remotely...................................................................................................................................... 42

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

Congure the Management Port IP Address.............................................................................................................. 43

Congure a Management Route.................................................................................................................................43

Conguring a Username and Password...................................................................................................................... 43

Conguring the Enable Password.....................................................................................................................................44

Conguration File Management........................................................................................................................................44

Copy Files to and from the System.............................................................................................................................44

Mounting an NFS File System.................................................................................................................................... 45

Save the Running-Conguration.................................................................................................................................47

Congure the Overload Bit for a Startup Scenario..................................................................................................... 47

Viewing Files...............................................................................................................................................................47

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

View Command History....................................................................................................................................................49

Upgrading Dell Networking OS.........................................................................................................................................49

Using HTTP for File Transfers.......................................................................................................................................... 49

Using Hashes to Validate Software Images...................................................................................................................... 50

4 Management................................................................................................................. 52

Conguring Privilege Levels..............................................................................................................................................52

3

Creating a Custom Privilege Level.............................................................................................................................. 52

Removing a Command from EXEC Mode...................................................................................................................52

Moving a Command from EXEC Privilege Mode to EXEC Mode................................................................................52

Allowing Access to CONFIGURATION Mode Commands...........................................................................................52

Allowing Access to the Following Modes....................................................................................................................53

Applying a Privilege Level to a Username................................................................................................................... 54

Applying a Privilege Level to a Terminal Line...............................................................................................................55

Conguring Logging......................................................................................................................................................... 55

Audit and Security Logs............................................................................................................................................. 55

Conguring Logging Format ..................................................................................................................................... 57

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

Log Messages in the Internal Buer................................................................................................................................. 59

Conguration Task List for System Log Management................................................................................................ 59

Disabling System Logging.................................................................................................................................................59

Sending System Messages to a Syslog Server................................................................................................................. 59

Conguring a UNIX System as a Syslog Server..........................................................................................................59

Changing System Logging Settings..................................................................................................................................60

Display the Logging Buer and the Logging Conguration................................................................................................61

Conguring a UNIX Logging Facility Level.........................................................................................................................61

Synchronizing Log Messages........................................................................................................................................... 62

Enabling Timestamp on Syslog Messages........................................................................................................................ 63

File Transfer Services....................................................................................................................................................... 63

Conguration Task List for File Transfer Services....................................................................................................... 63

Enabling the FTP Server............................................................................................................................................ 64

Conguring FTP Server Parameters...........................................................................................................................64

Conguring FTP Client Parameters............................................................................................................................ 64

Terminal Lines...................................................................................................................................................................65

Denying and Permitting Access to a Terminal Line......................................................................................................65

Conguring Login Authentication for Terminal Lines...................................................................................................66

Setting Time Out of EXEC Privilege Mode.......................................................................................................................66

Using Telnet to get to Another Network Device............................................................................................................... 67

Lock CONFIGURATION Mode......................................................................................................................................... 68

Viewing the Conguration Lock Status.......................................................................................................................68

Restoring the Factory Default Settings............................................................................................................................ 68

Important Points to Remember.................................................................................................................................. 69

Restoring Factory Default Environment Variables.......................................................................................................69

5 802.1X............................................................................................................................71

The Port-Authentication Process..................................................................................................................................... 72

EAP over RADIUS.......................................................................................................................................................73

Conguring 802.1X............................................................................................................................................................74

Related Conguration Tasks........................................................................................................................................74

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

Enabling 802.1X................................................................................................................................................................ 75

Conguring Request Identity Re-Transmissions................................................................................................................ 76

Conguring a Quiet Period after a Failed Authentication.............................................................................................77

4

Forcibly Authorizing or Unauthorizing a Port.................................................................................................................... 78

Re-Authenticating a Port..................................................................................................................................................78

Conguring Timeouts....................................................................................................................................................... 79

Conguring Dynamic VLAN Assignment with Port Authentication...................................................................................80

Guest and Authentication-Fail VLANs...............................................................................................................................81

Conguring a Guest VLAN......................................................................................................................................... 82

Conguring an Authentication-Fail VLAN................................................................................................................... 82

6 Access Control Lists (ACLs)..........................................................................................84

IP Access Control Lists (ACLs).........................................................................................................................................84

CAM Usage................................................................................................................................................................85

Implementing ACLs on Dell Networking OS................................................................................................................85

Important Points to Remember.........................................................................................................................................87

Conguration Task List for Route Maps...................................................................................................................... 87

Conguring Match Routes......................................................................................................................................... 89

Conguring Set Conditions........................................................................................................................................ 90

Congure a Route Map for Route Redistribution.........................................................................................................91

Congure a Route Map for Route Tagging................................................................................................................. 92

Continue Clause......................................................................................................................................................... 92

IP Fragment Handling.......................................................................................................................................................92

IP Fragments ACL Examples...................................................................................................................................... 93

Layer 4 ACL Rules Examples...................................................................................................................................... 93

Congure a Standard IP ACL............................................................................................................................................94

Conguring a Standard IP ACL Filter..........................................................................................................................95

Congure an Extended IP ACL.........................................................................................................................................96

Conguring Filters with a Sequence Number............................................................................................................. 96

Conguring Filters Without a Sequence Number........................................................................................................97

Congure Layer 2 and Layer 3 ACLs................................................................................................................................ 98

Assign an IP ACL to an Interface......................................................................................................................................98

Applying an IP ACL...........................................................................................................................................................99

Counting ACL Hits......................................................................................................................................................99

Congure Ingress ACLs....................................................................................................................................................99

Congure Egress ACLs................................................................................................................................................... 100

Applying Egress Layer 3 ACLs (Control-Plane)......................................................................................................... 100

IP Prex Lists...................................................................................................................................................................101

Implementation Information....................................................................................................................................... 101

Conguration Task List for Prex Lists.......................................................................................................................101

ACL Resequencing......................................................................................................................................................... 105

Resequencing an ACL or Prex List..........................................................................................................................105

Route Maps.................................................................................................................................................................... 106

Implementation Information.......................................................................................................................................107

Flow-Based Monitoring Support for ACLs.......................................................................................................................107

Behavior of Flow-Based Monitoring.......................................................................................................................... 107

Enabling Flow-Based Monitoring...............................................................................................................................108

7 Bidirectional Forwarding Detection (BFD).................................................................... 110

5

How BFD Works.............................................................................................................................................................. 110

BFD Packet Format....................................................................................................................................................111

BFD Sessions.............................................................................................................................................................112

BFD Three-Way Handshake.......................................................................................................................................113

Session State Changes..............................................................................................................................................115

Important Points to Remember....................................................................................................................................... 115

Congure BFD.................................................................................................................................................................115

Congure BFD for Physical Ports.............................................................................................................................. 116

Congure BFD for Static Routes............................................................................................................................... 119

Congure BFD for OSPF.......................................................................................................................................... 120

Congure BFD for OSPFv3.......................................................................................................................................122

Congure BFD for IS-IS............................................................................................................................................ 124

Congure BFD for BGP............................................................................................................................................ 125

Congure BFD for VRRP.......................................................................................................................................... 132

Conguring Protocol Liveness...................................................................................................................................134

Troubleshooting BFD.................................................................................................................................................134

8 Border Gateway Protocol IPv4 (BGPv4)...................................................................... 136

Autonomous Systems (AS).............................................................................................................................................136

Sessions and Peers......................................................................................................................................................... 138

Establish a Session....................................................................................................................................................138

Route Reectors.............................................................................................................................................................139

BGP Attributes............................................................................................................................................................... 140

Best Path Selection Criteria......................................................................................................................................140

Weight...................................................................................................................................................................... 142

Local Preference.......................................................................................................................................................142

Multi-Exit Discriminators (MEDs)..............................................................................................................................143

Origin........................................................................................................................................................................ 144

AS Path.....................................................................................................................................................................144

Next Hop.................................................................................................................................................................. 145

Multiprotocol BGP.......................................................................................................................................................... 145

Implement BGP with Dell Networking OS....................................................................................................................... 146

Additional Path (Add-Path) Support......................................................................................................................... 146

Advertise IGP Cost as MED for Redistributed Routes...............................................................................................146

Ignore Router-ID for Some Best-Path Calculations................................................................................................... 147

Four-Byte AS Numbers.............................................................................................................................................147

AS4 Number Representation.....................................................................................................................................147

AS Number Migration............................................................................................................................................... 149

BGP4 Management Information Base (MIB)............................................................................................................ 150

Important Points to Remember.................................................................................................................................150

Conguration Information................................................................................................................................................ 151

BGP Conguration...........................................................................................................................................................151

Enabling BGP............................................................................................................................................................152

Conguring AS4 Number Representations............................................................................................................... 155

Conguring Peer Groups...........................................................................................................................................157

Conguring BGP Fast Fall-Over................................................................................................................................159

6

Conguring Passive Peering...................................................................................................................................... 161

Maintaining Existing AS Numbers During an AS Migration.........................................................................................161

Allowing an AS Number to Appear in its Own AS Path..............................................................................................162

Enabling Graceful Restart......................................................................................................................................... 163

Enabling Neighbor Graceful Restart..........................................................................................................................164

Filtering on an AS-Path Attribute.............................................................................................................................. 164

Regular Expressions as Filters...................................................................................................................................166

Redistributing Routes................................................................................................................................................167

Enabling Additional Paths..........................................................................................................................................168

Conguring IP Community Lists................................................................................................................................168

Conguring an IP Extended Community List.............................................................................................................169

Filtering Routes with Community Lists......................................................................................................................170

Manipulating the COMMUNITY Attribute................................................................................................................. 170

Changing MED Attributes......................................................................................................................................... 172

Changing the LOCAL_PREFERENCE Attribute........................................................................................................ 172

Changing the NEXT_HOP Attribute..........................................................................................................................173

Changing the WEIGHT Attribute...............................................................................................................................173

Enabling Multipath.....................................................................................................................................................174

Filtering BGP Routes.................................................................................................................................................174

Filtering BGP Routes Using Route Maps...................................................................................................................175

Filtering BGP Routes Using AS-PATH Information.................................................................................................... 176

Conguring BGP Route Reectors............................................................................................................................176

Aggregating Routes...................................................................................................................................................177

Conguring BGP Confederations.............................................................................................................................. 177

Enabling Route Flap Dampening................................................................................................................................178

Changing BGP Timers...............................................................................................................................................180

Enabling BGP Neighbor Soft-Reconguration........................................................................................................... 181

Route Map Continue.................................................................................................................................................182

Enabling MBGP Congurations.......................................................................................................................................182

BGP Regular Expression Optimization.............................................................................................................................183

Debugging BGP.............................................................................................................................................................. 183

Storing Last and Bad PDUs.......................................................................................................................................184

Capturing PDUs........................................................................................................................................................185

PDU Counters...........................................................................................................................................................186

Sample Congurations....................................................................................................................................................186

9 Content Addressable Memory (CAM).......................................................................... 193

CAM Allocation............................................................................................................................................................... 193

Test CAM Usage.............................................................................................................................................................195

View CAM Proles..........................................................................................................................................................195

View CAM-ACL Settings................................................................................................................................................ 196

View CAM Usage............................................................................................................................................................ 197

CAM Optimization.......................................................................................................................................................... 198

Troubleshoot CAM Proling............................................................................................................................................ 198

CAM Prole Mismatches.......................................................................................................................................... 198

QoS CAM Region Limitation..................................................................................................................................... 198

7

Syslog Error When the Table is Full........................................................................................................................... 199

Syslog Warning Upon 90 Percent Utilization of CAM................................................................................................199

Syslog Warning for Discrepancies Between Congured Extended Prexes...............................................................199

Unied Forwarding Table (UFT) Modes.......................................................................................................................... 199

Conguring UFT Modes............................................................................................................................................199

10 Control Plane Policing (CoPP)................................................................................... 201

Congure Control Plane Policing.................................................................................................................................... 202

Conguring CoPP for Protocols...............................................................................................................................203

Conguring CoPP for CPU Queues..........................................................................................................................204

Show Commands.....................................................................................................................................................205

11 Data Center Bridging (DCB)....................................................................................... 207

Ethernet Enhancements in Data Center Bridging........................................................................................................... 207

Priority-Based Flow Control..................................................................................................................................... 208

Enhanced Transmission Selection.............................................................................................................................209

Data Center Bridging Exchange Protocol (DCBx).....................................................................................................210

Data Center Bridging in a Trac Flow........................................................................................................................211

Enabling Data Center Bridging.........................................................................................................................................211

QoS dot1p Trac Classication and Queue Assignment..................................................................................................212

SNMP Support for PFC and Buer Statistics Tracking...................................................................................................212

DCB Maps and its Attributes...........................................................................................................................................213

DCB Map: Conguration Procedure.......................................................................................................................... 213

Important Points to Remember.................................................................................................................................213

Applying a DCB Map on a Port..................................................................................................................................214

Conguring PFC without a DCB Map....................................................................................................................... 214

Conguring Lossless Queues.................................................................................................................................... 215

Data Center Bridging: Default Conguration................................................................................................................... 216

Conguring PFC and ETS in a DCB Map........................................................................................................................ 216

PFC Conguration Notes..........................................................................................................................................216

PFC Prerequisites and Restrictions........................................................................................................................... 217

ETS Conguration Notes.......................................................................................................................................... 217

ETS Prerequisites and Restrictions........................................................................................................................... 218

Conguring Priority-Based Flow Control.........................................................................................................................219

Conguring Lossless Queues.................................................................................................................................... 219

Congure Enhanced Transmission Selection.................................................................................................................. 220

ETS Prerequisites and Restrictions...........................................................................................................................220

Creating an ETS Priority Group.................................................................................................................................221

ETS Operation with DCBx........................................................................................................................................222

Conguring Bandwidth Allocation for DCBx CIN...................................................................................................... 222

Applying DCB Policies in a Switch Stack........................................................................................................................ 223

Congure a DCBx Operation.......................................................................................................................................... 223

DCBx Operation....................................................................................................................................................... 223

DCBx Port Roles...................................................................................................................................................... 224

DCB Conguration Exchange...................................................................................................................................225

Conguration Source Election..................................................................................................................................225

8

Propagation of DCB Information.............................................................................................................................. 226

Auto-Detection and Manual Conguration of the DCBx Version.............................................................................. 226

Behavior of Tagged Packets.....................................................................................................................................226

Conguration Example for DSCP and PFC Priorities................................................................................................ 227

DCBx Example......................................................................................................................................................... 228

DCBx Prerequisites and Restrictions........................................................................................................................ 228

Conguring DCBx.................................................................................................................................................... 228

Verifying the DCB Conguration.................................................................................................................................... 232

Generation of PFC for a Priority for Untagged Packets.................................................................................................. 241

Operations on Untagged Packets....................................................................................................................................241

Performing PFC Using DSCP Bits Instead of 802.1p Bits................................................................................................242

PFC and ETS Conguration Examples............................................................................................................................242

Using PFC and ETS to Manage Data Center Trac....................................................................................................... 242

PFC and ETS Conguration Command Examples.................................................................................................... 244

Using PFC and ETS to Manage Converged Ethernet Trac.................................................................................... 244

Hierarchical Scheduling in ETS Output Policies........................................................................................................ 244

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

Conguring the Dynamic Buer Method........................................................................................................................246

12 Dynamic Host Conguration Protocol (DHCP)...........................................................247

DHCP Packet Format and Options.................................................................................................................................247

Assign an IP Address using DHCP.................................................................................................................................. 249

Implementation Information............................................................................................................................................249

Congure the System to be a DHCP Server.................................................................................................................. 250

Conguring the Server for Automatic Address Allocation.........................................................................................250

Specifying a Default Gateway.................................................................................................................................. 252

Congure a Method of Hostname Resolution.......................................................................................................... 252

Using DNS for Address Resolution........................................................................................................................... 252

Using NetBIOS WINS for Address Resolution.......................................................................................................... 252

Creating Manual Binding Entries.............................................................................................................................. 252

Debugging the DHCP Server................................................................................................................................... 253

Using DHCP Clear Commands.................................................................................................................................253

Congure the System to be a DHCP Client....................................................................................................................253

Conguring the DHCP Client System.......................................................................................................................254

DHCP Client on a Management Interface................................................................................................................ 255

DHCP Client Operation with Other Features............................................................................................................256

Congure the System for User Port Stacking (Option 230)...........................................................................................256

Congure Secure DHCP.................................................................................................................................................257

Option 82................................................................................................................................................................. 257

DHCP Snooping....................................................................................................................................................... 257

Drop DHCP Packets on Snooped VLANs Only.........................................................................................................260

Dynamic ARP Inspection...........................................................................................................................................261

Conguring Dynamic ARP Inspection.......................................................................................................................262

Source Address Validation.............................................................................................................................................. 263

9

Enabling IP Source Address Validation......................................................................................................................263

DHCP MAC Source Address Validation.................................................................................................................... 264

Enabling IP+MAC Source Address Validation............................................................................................................264

Viewing the Number of SAV Dropped Packets.........................................................................................................264

Clearing the Number of SAV Dropped Packets........................................................................................................ 265

13 Equal Cost Multi-Path (ECMP)................................................................................. 266

ECMP for Flow-Based Anity....................................................................................................................................... 266

Conguring the Hash Algorithm...............................................................................................................................266

Enabling Deterministic ECMP Next Hop.................................................................................................................. 266

Conguring the Hash Algorithm Seed...................................................................................................................... 266

Link Bundle Monitoring...................................................................................................................................................267

Managing ECMP Group Paths..................................................................................................................................267

Creating an ECMP Group Bundle............................................................................................................................. 268

Modifying the ECMP Group Threshold.................................................................................................................... 268

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table................................................. 269

Support for ECMP in host table...............................................................................................................................269

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ................................................................................ 270

14 FCoE Transit...............................................................................................................271

Fibre Channel over Ethernet........................................................................................................................................... 271

Ensure Robustness in a Converged Ethernet Network....................................................................................................271

FIP Snooping on Ethernet Bridges..................................................................................................................................272

FIP Snooping in a Switch Stack...................................................................................................................................... 274

Using FIP Snooping........................................................................................................................................................ 274

FIP Snooping Prerequisites.......................................................................................................................................274

Important Points to Remember................................................................................................................................ 275

Enabling the FCoE Transit Feature........................................................................................................................... 275

Enable FIP Snooping on VLANs................................................................................................................................276

Congure the FC-MAP Value...................................................................................................................................276

Congure a Port for a Bridge-to-Bridge Link............................................................................................................ 276

Congure a Port for a Bridge-to-FCF Link................................................................................................................276

Impact on Other Software Features......................................................................................................................... 276

FIP Snooping Restrictions.........................................................................................................................................277

Conguring FIP Snooping.........................................................................................................................................277

Displaying FIP Snooping Information...............................................................................................................................278

FCoE Transit Conguration Example.............................................................................................................................. 283

15 Flex Hash and Optimized Boot-Up............................................................................. 285

Flex Hash Capability Overview.......................................................................................................................................285

Conguring the Flex Hash Mechanism...........................................................................................................................285

Conguring Fast Boot and LACP Fast Switchover.........................................................................................................286

Optimizing the Boot Time.............................................................................................................................................. 286

Booting Process When Optimized Boot Time Mechanism is Enabled.......................................................................286

Guidelines for Conguring Optimized Booting Mechanism.......................................................................................286

Interoperation of Applications with Fast Boot and System States...................................................................................287

10

LACP and IPv4 Routing............................................................................................................................................287

LACP and IPv6 Routing........................................................................................................................................... 288

BGP Graceful Restart.............................................................................................................................................. 288

Cold Boot Caused by Power Cycling the System..................................................................................................... 288

Unexpected Reload of the System...........................................................................................................................289

Software Upgrade....................................................................................................................................................289

LACP Fast Switchover.............................................................................................................................................289

Changes to BGP Multipath...................................................................................................................................... 289

Delayed Installation of ECMP Routes Into BGP........................................................................................................289

RDMA Over Converged Ethernet (RoCE) Overview......................................................................................................290

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces............................................................................................. 290

16 Force10 Resilient Ring Protocol (FRRP).................................................................... 292

Protocol Overview......................................................................................................................................................... 292

Ring Status.............................................................................................................................................................. 292

Multiple FRRP Rings................................................................................................................................................ 293

Important FRRP Points............................................................................................................................................ 293

Important FRRP Concepts.......................................................................................................................................294

Implementing FRRP....................................................................................................................................................... 295

FRRP Conguration.......................................................................................................................................................295

Creating the FRRP Group........................................................................................................................................ 295

Conguring the Control VLAN................................................................................................................................. 296

Conguring and Adding the Member VLANs............................................................................................................297

Setting the FRRP Timers......................................................................................................................................... 298

Clearing the FRRP Counters....................................................................................................................................298

Viewing the FRRP Conguration..............................................................................................................................298

Viewing the FRRP Information................................................................................................................................. 298

Troubleshooting FRRP................................................................................................................................................... 299

Conguration Checks...............................................................................................................................................299

Sample Conguration and Topology............................................................................................................................... 299

17 GARP VLAN Registration Protocol (GVRP)................................................................ 301

Important Points to Remember.......................................................................................................................................301

Congure GVRP............................................................................................................................................................. 301

Related Conguration Tasks..................................................................................................................................... 302

Enabling GVRP Globally................................................................................................................................................. 302

Enabling GVRP on a Layer 2 Interface............................................................................................................................303

Congure GVRP Registration.........................................................................................................................................303

Congure a GARP Timer................................................................................................................................................304

18 Internet Group Management Protocol (IGMP)...........................................................305

IGMP Implementation Information................................................................................................................................. 305

IGMP Protocol Overview............................................................................................................................................... 305

IGMP Version 2........................................................................................................................................................305

IGMP Version 3........................................................................................................................................................306

Congure IGMP............................................................................................................................................................. 309

11

Related Conguration Tasks.....................................................................................................................................309

Viewing IGMP Enabled Interfaces...................................................................................................................................310

Selecting an IGMP Version..............................................................................................................................................310

Viewing IGMP Groups.....................................................................................................................................................310

Adjusting Timers.............................................................................................................................................................. 311

Adjusting Query and Response Timers.......................................................................................................................311

Enabling IGMP Immediate-Leave.................................................................................................................................... 312

IGMP Snooping...............................................................................................................................................................312

IGMP Snooping Implementation Information.............................................................................................................312

Conguring IGMP Snooping......................................................................................................................................312

Removing a Group-Port Association......................................................................................................................... 313

Disabling Multicast Flooding......................................................................................................................................313

Specifying a Port as Connected to a Multicast Router..............................................................................................313

Conguring the Switch as Querier............................................................................................................................ 314

Fast Convergence after MSTP Topology Changes..........................................................................................................314

Egress Interface Selection (EIS) for HTTP and IGMP Applications................................................................................. 314

Protocol Separation.................................................................................................................................................. 315

Enabling and Disabling Management Egress Interface Selection............................................................................... 316

Handling of Management Route Conguration......................................................................................................... 317

Handling of Switch-Initiated Trac........................................................................................................................... 317

Handling of Switch-Destined Trac..........................................................................................................................318

Handling of Transit Trac (Trac Separation).......................................................................................................... 318

Mapping of Management Applications and Trac Type............................................................................................ 319

Behavior of Various Applications for Switch-Initiated Trac ....................................................................................320

Behavior of Various Applications for Switch-Destined Trac .................................................................................. 320

Interworking of EIS With Various Applications...........................................................................................................321

Designating a Multicast Router Interface....................................................................................................................... 322

19 Interfaces.................................................................................................................. 323

Basic Interface Conguration......................................................................................................................................... 323

Advanced Interface Conguration.................................................................................................................................. 323

Interface Types...............................................................................................................................................................323

View Basic Interface Information....................................................................................................................................324

Enabling a Physical Interface..........................................................................................................................................325

Physical Interfaces......................................................................................................................................................... 326

Conguration Task List for Physical Interfaces......................................................................................................... 326

40G to 1G Breakout Cable Adaptor.......................................................................................................................... 326

Overview of Layer Modes........................................................................................................................................ 327

Conguring Layer 2 (Data Link) Mode......................................................................................................................327

Conguring Layer 2 (Interface) Mode...................................................................................................................... 327

Conguring Layer 3 (Network) Mode...................................................................................................................... 328

Conguring Layer 3 (Interface) Mode...................................................................................................................... 328

Egress Interface Selection (EIS).....................................................................................................................................329

Important Points to Remember................................................................................................................................329

Conguring EIS........................................................................................................................................................ 329

Management Interfaces................................................................................................................................................. 330

12

Conguring Management Interfaces........................................................................................................................330

Conguring Management Interfaces on the S-Series...............................................................................................330

VLAN Interfaces............................................................................................................................................................. 331

Loopback Interfaces.......................................................................................................................................................332

Null Interfaces................................................................................................................................................................332

Port Channel Interfaces................................................................................................................................................. 332

Port Channel Denition and Standards.....................................................................................................................333

Port Channel Benets.............................................................................................................................................. 333

Port Channel Implementation...................................................................................................................................333

10/100/1000 Mbps Interfaces in Port Channels....................................................................................................... 334

Conguration Tasks for Port Channel Interfaces...................................................................................................... 334

Creating a Port Channel...........................................................................................................................................334

Adding a Physical Interface to a Port Channel..........................................................................................................335

Reassigning an Interface to a New Port Channel..................................................................................................... 336

Conguring the Minimum Oper Up Links in a Port Channel...................................................................................... 337

.................................................................................................................................................................................337

Assigning an IP Address to a Port Channel...............................................................................................................338

Deleting or Disabling a Port Channel........................................................................................................................ 338

Load Balancing Through Port Channels....................................................................................................................338

Load-Balancing Method........................................................................................................................................... 339

Changing the Hash Algorithm.................................................................................................................................. 339

Bulk Conguration..........................................................................................................................................................340

Interface Range........................................................................................................................................................340

Bulk Conguration Examples.....................................................................................................................................341

Dening Interface Range Macros................................................................................................................................... 342

Dene the Interface Range...................................................................................................................................... 342

Choosing an Interface-Range Macro........................................................................................................................342

Monitoring and Maintaining Interfaces........................................................................................................................... 343

Maintenance Using TDR...........................................................................................................................................344

Fanning out 40G Ports Dynamically................................................................................................................................344

Splitting QSFP Ports to SFP+ Ports...............................................................................................................................344

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port......................................................................................... 345

Important Points to Remember................................................................................................................................345

Support for LM4 Optics........................................................................................................................................... 346

Example Scenarios...................................................................................................................................................346

Link Dampening..............................................................................................................................................................347

Important Points to Remember................................................................................................................................ 347

Enabling Link Dampening..........................................................................................................................................347

Link Bundle Monitoring...................................................................................................................................................349

Using Ethernet Pause Frames for Flow Control..............................................................................................................349

Enabling Pause Frames............................................................................................................................................ 350

Congure the MTU Size on an Interface........................................................................................................................350

Port-Pipes.......................................................................................................................................................................351

Auto-Negotiation on Ethernet Interfaces........................................................................................................................ 351

Setting the Speed and Duplex Mode of Ethernet Interfaces.....................................................................................351

13

Set Auto-Negotiation Options..................................................................................................................................353

View Advanced Interface Information............................................................................................................................ 354

Conguring the Interface Sampling Size.................................................................................................................. 354

Dynamic Counters..........................................................................................................................................................355

Clearing Interface Counters..................................................................................................................................... 356

Enhanced Validation of Interface Ranges.......................................................................................................................356

Compressing Conguration Files.................................................................................................................................... 357

20 IPv4 Routing............................................................................................................. 360

IP Addresses.................................................................................................................................................................. 360

Implementation Information..................................................................................................................................... 360

Conguration Tasks for IP Addresses............................................................................................................................. 360

Assigning IP Addresses to an Interface........................................................................................................................... 361

Conguring Static Routes............................................................................................................................................... 361

Congure Static Routes for the Management Interface.................................................................................................363

Using the Congured Source IP Address in ICMP Messages......................................................................................... 364

Conguring the ICMP Source Interface................................................................................................................... 364

Conguring the Duration to Establish a TCP Connection............................................................................................... 364

Enabling Directed Broadcast.......................................................................................................................................... 365

Resolution of Host Names............................................................................................................................................. 365

Enabling Dynamic Resolution of Host Names.................................................................................................................365

Specifying the Local System Domain and a List of Domains...........................................................................................366

Conguring DNS with Traceroute.................................................................................................................................. 366

ARP................................................................................................................................................................................367

Conguration Tasks for ARP...........................................................................................................................................367

Conguring Static ARP Entries.......................................................................................................................................367

Enabling Proxy ARP....................................................................................................................................................... 368

Clearing ARP Cache.......................................................................................................................................................368

ARP Learning via Gratuitous ARP.................................................................................................................................. 368

Enabling ARP Learning via Gratuitous ARP.................................................................................................................... 369

ARP Learning via ARP Request......................................................................................................................................369

Conguring ARP Retries.................................................................................................................................................370

ICMP..............................................................................................................................................................................370

Conguration Tasks for ICMP......................................................................................................................................... 371

Enabling ICMP Unreachable Messages........................................................................................................................... 371

UDP Helper.....................................................................................................................................................................371

Congure UDP Helper...............................................................................................................................................371

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

Enabling UDP Helper.......................................................................................................................................................371

Conguring a Broadcast Address................................................................................................................................... 372

Congurations Using UDP Helper...................................................................................................................................372

UDP Helper with Broadcast-All Addresses......................................................................................................................373

UDP Helper with Subnet Broadcast Addresses.............................................................................................................. 373

UDP Helper with Congured Broadcast Addresses........................................................................................................ 374

UDP Helper with No Congured Broadcast Addresses...................................................................................................374

Troubleshooting UDP Helper.......................................................................................................................................... 375

14

21 IPv6 Routing.............................................................................................................. 376

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

Extended Address Space..........................................................................................................................................376

Stateless Autoconguration......................................................................................................................................376

IPv6 Headers............................................................................................................................................................377

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support............................................................................ 377

IPv6 Header Fields................................................................................................................................................... 378

Extension Header Fields...........................................................................................................................................380

Addressing................................................................................................................................................................ 381

Implementing IPv6 with Dell Networking OS..................................................................................................................382

ICMPv6..........................................................................................................................................................................383

Path MTU Discovery......................................................................................................................................................384

IPv6 Neighbor Discovery................................................................................................................................................384

IPv6 Neighbor Discovery of MTU Packets...............................................................................................................385

Conguring the IPv6 Recursive DNS Server............................................................................................................385

Debugging IPv6 RDNSS Information Sent to the Host ............................................................................................386

Displaying IPv6 RDNSS Information......................................................................................................................... 386

Secure Shell (SSH) Over an IPv6 Transport................................................................................................................... 387

Conguration Tasks for IPv6...........................................................................................................................................387

Adjusting Your CAM-Prole...................................................................................................................................... 387

Assigning an IPv6 Address to an Interface............................................................................................................... 388

Assigning a Static IPv6 Route.................................................................................................................................. 388

Conguring Telnet with IPv6.................................................................................................................................... 389

SNMP over IPv6......................................................................................................................................................389

Showing IPv6 Information........................................................................................................................................ 389

Showing an IPv6 Interface....................................................................................................................................... 390

Showing IPv6 Routes................................................................................................................................................391

Showing the Running-Conguration for an Interface............................................................................................... 392

Clearing IPv6 Routes................................................................................................................................................392

Conguring IPv6 RA Guard............................................................................................................................................ 393

Conguring IPv6 RA Guard on an Interface..............................................................................................................394

Monitoring IPv6 RA Guard....................................................................................................................................... 395

22 iSCSI Optimization....................................................................................................396

iSCSI Optimization Overview......................................................................................................................................... 396

Monitoring iSCSI Trac Flows..................................................................................................................................397

Application of Quality of Service to iSCSI Trac Flows............................................................................................ 397

Information Monitored in iSCSI Trac Flows............................................................................................................398

Detection and Auto-Conguration for Dell EqualLogic Arrays...................................................................................398

Conguring Detection and Ports for Dell Compellent Arrays.................................................................................... 399

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer......................................................................... 399

Enable and Disable iSCSI Optimization.....................................................................................................................400

Default iSCSI Optimization Values..................................................................................................................................400

iSCSI Optimization Prerequisites.....................................................................................................................................401

Conguring iSCSI Optimization.......................................................................................................................................401

15

Displaying iSCSI Optimization Information......................................................................................................................403

23 Intermediate System to Intermediate System............................................................405

IS-IS Protocol Overview.................................................................................................................................................405

IS-IS Addressing.............................................................................................................................................................405

Multi-Topology IS-IS....................................................................................................................................................... 406

Transition Mode....................................................................................................................................................... 406

Interface Support.....................................................................................................................................................406

Adjacencies..............................................................................................................................................................406

Graceful Restart.............................................................................................................................................................407

Timers...................................................................................................................................................................... 407

Implementation Information............................................................................................................................................407

Conguration Information.............................................................................................................................................. 408

Conguration Tasks for IS-IS....................................................................................................................................408

Conguring the Distance of a Route......................................................................................................................... 416

Changing the IS-Type................................................................................................................................................416

Redistributing IPv4 Routes........................................................................................................................................419

Redistributing IPv6 Routes....................................................................................................................................... 419

Conguring Authentication Passwords.....................................................................................................................420

Setting the Overload Bit........................................................................................................................................... 421

Debugging IS-IS........................................................................................................................................................421

IS-IS Metric Styles......................................................................................................................................................... 422

Congure Metric Values.................................................................................................................................................422

Maximum Values in the Routing Table...................................................................................................................... 423

Change the IS-IS Metric Style in One Level Only......................................................................................................423

Leaks from One Level to Another.............................................................................................................................424

Sample Congurations................................................................................................................................................... 425

24 Link Aggregation Control Protocol (LACP)................................................................ 428

Introduction to Dynamic LAGs and LACP.......................................................................................................................428

Important Points to Remember................................................................................................................................ 428

LACP Modes............................................................................................................................................................429

Conguring LACP Commands..................................................................................................................................429

LACP Conguration Tasks..............................................................................................................................................430

Creating a LAG.........................................................................................................................................................430

Conguring the LAG Interfaces as Dynamic.............................................................................................................430

Setting the LACP Long Timeout............................................................................................................................... 431

Monitoring and Debugging LACP..............................................................................................................................431

Shared LAG State Tracking............................................................................................................................................ 432

Conguring Shared LAG State Tracking................................................................................................................... 432

Important Points about Shared LAG State Tracking................................................................................................. 433

LACP Basic Conguration Example................................................................................................................................434

Congure a LAG on ALPHA..................................................................................................................................... 434

25 Layer 2...................................................................................................................... 442

Manage the MAC Address Table.................................................................................................................................... 442

16

Clearing the MAC Address Table.............................................................................................................................. 442

Setting the Aging Time for Dynamic Entries.............................................................................................................442

Conguring a Static MAC Address...........................................................................................................................442

Displaying the MAC Address Table........................................................................................................................... 443

MAC Learning Limit........................................................................................................................................................443

Setting the MAC Learning Limit............................................................................................................................... 444

mac learning-limit Dynamic.......................................................................................................................................444

mac learning-limit mac-address-sticky..................................................................................................................... 444

mac learning-limit station-move............................................................................................................................... 444

mac learning-limit no-station-move..........................................................................................................................445

Learning Limit Violation Actions................................................................................................................................445

Setting Station Move Violation Actions.................................................................................................................... 445

Recovering from Learning Limit and Station Move Violations...................................................................................446

NIC Teaming...................................................................................................................................................................446

Congure Redundant Pairs.............................................................................................................................................447

Important Points about Conguring Redundant Pairs...............................................................................................449

Far-End Failure Detection.............................................................................................................................................. 450

FEFD State Changes................................................................................................................................................ 451

Conguring FEFD..................................................................................................................................................... 451

Enabling FEFD on an Interface.................................................................................................................................452

Debugging FEFD......................................................................................................................................................453

26 Link Layer Discovery Protocol (LLDP).......................................................................455

802.1AB (LLDP) Overview............................................................................................................................................. 455

Protocol Data Units..................................................................................................................................................455

Optional TLVs.................................................................................................................................................................456

Management TLVs...................................................................................................................................................456

TIA-1057 (LLDP-MED) Overview................................................................................................................................... 458

TIA Organizationally Specic TLVs........................................................................................................................... 458

Congure LLDP..............................................................................................................................................................462

Related Conguration Tasks..................................................................................................................................... 462

Important Points to Remember................................................................................................................................462

LLDP Compatibility...................................................................................................................................................462

CONFIGURATION versus INTERFACE Congurations...................................................................................................462

Enabling LLDP................................................................................................................................................................463

Disabling and Undoing LLDP.................................................................................................................................... 463

Enabling LLDP on Management Ports............................................................................................................................463

Disabling and Undoing LLDP on Management Ports................................................................................................ 464

Advertising TLVs............................................................................................................................................................ 464

Viewing the LLDP Conguration.................................................................................................................................... 465

Viewing Information Advertised by Adjacent LLDP Agents.............................................................................................466

Conguring LLDPDU Intervals....................................................................................................................................... 466

Conguring Transmit and Receive Mode........................................................................................................................ 467

Conguring a Time to Live............................................................................................................................................. 468

Debugging LLDP............................................................................................................................................................469

Relevant Management Objects......................................................................................................................................469

17

27 Microsoft Network Load Balancing............................................................................ 474

NLB Unicast Mode Scenario...........................................................................................................................................474

NLB Multicast Mode Scenario........................................................................................................................................474

Limitations With Enabling NLB on Switches................................................................................................................... 475

Benets and Working of Microsoft Clustering................................................................................................................ 475

Enable and Disable VLAN Flooding ................................................................................................................................475

Conguring a Switch for NLB ........................................................................................................................................476

.................................................................................................................................................................................476

28 Multicast Source Discovery Protocol (MSDP)........................................................... 477

Protocol Overview..........................................................................................................................................................477

Anycast RP.................................................................................................................................................................... 478

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

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

Related Conguration Tasks..................................................................................................................................... 479

Enable MSDP.................................................................................................................................................................483

Manage the Source-Active Cache................................................................................................................................. 484

Viewing the Source-Active Cache............................................................................................................................484

Limiting the Source-Active Cache............................................................................................................................484

Clearing the Source-Active Cache........................................................................................................................... 485

Enabling the Rejected Source-Active Cache............................................................................................................485

Accept Source-Active Messages that Fail the RFP Check.............................................................................................485

Specifying Source-Active Messages.............................................................................................................................. 489

Limiting the Source-Active Messages from a Peer.........................................................................................................490

Preventing MSDP from Caching a Local Source............................................................................................................ 490

Preventing MSDP from Caching a Remote Source.........................................................................................................491

Preventing MSDP from Advertising a Local Source........................................................................................................ 491

Logging Changes in Peership States.............................................................................................................................. 492

Terminating a Peership...................................................................................................................................................492

Clearing Peer Statistics..................................................................................................................................................493

Debugging MSDP...........................................................................................................................................................493

MSDP with Anycast RP................................................................................................................................................. 494

Conguring Anycast RP.................................................................................................................................................495

Reducing Source-Active Message Flooding............................................................................................................. 496

Specifying the RP Address Used in SA Messages....................................................................................................496

MSDP Sample Congurations........................................................................................................................................498

29 Multiple Spanning Tree Protocol (MSTP).................................................................. 501

Protocol Overview..........................................................................................................................................................501

Spanning Tree Variations................................................................................................................................................502

Implementation Information..................................................................................................................................... 502

Congure Multiple Spanning Tree Protocol.................................................................................................................... 502

Related Conguration Tasks.....................................................................................................................................502

Enable Multiple Spanning Tree Globally.......................................................................................................................... 503

Adding and Removing Interfaces....................................................................................................................................503

18

Creating Multiple Spanning Tree Instances.....................................................................................................................503

Inuencing MSTP Root Selection.................................................................................................................................. 504

Interoperate with Non-Dell Networking OS Bridges.......................................................................................................505

Changing the Region Name or Revision.........................................................................................................................505

Modifying Global Parameters......................................................................................................................................... 506

Modifying the Interface Parameters............................................................................................................................... 507

Conguring an EdgePort................................................................................................................................................508

Flush MAC Addresses after a Topology Change.............................................................................................................508

MSTP Sample Congurations........................................................................................................................................ 509

Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-CongurationSFTOS

Example Running-Conguration...............................................................................................................................509

Debugging and Verifying MSTP Congurations.............................................................................................................. 512

30 Multicast Features..................................................................................................... 514

Enabling IP Multicast...................................................................................................................................................... 514

Implementation Information............................................................................................................................................ 514

Multicast Policies............................................................................................................................................................515

IPv4 Multicast Policies..............................................................................................................................................515

31 Object Tracking..........................................................................................................523

Object Tracking Overview.............................................................................................................................................. 523

Track Layer 2 Interfaces........................................................................................................................................... 524

Track Layer 3 Interfaces........................................................................................................................................... 524

Track IPv4 and IPv6 Routes..................................................................................................................................... 524

Set Tracking Delays..................................................................................................................................................525

VRRP Object Tracking..............................................................................................................................................526

Object Tracking Conguration........................................................................................................................................526

Tracking a Layer 2 Interface..................................................................................................................................... 526

Tracking a Layer 3 Interface......................................................................................................................................527

Track an IPv4/IPv6 Route........................................................................................................................................528

Displaying Tracked Objects............................................................................................................................................. 531

32 Open Shortest Path First (OSPFv2 and OSPFv3)..................................................... 534

Protocol Overview......................................................................................................................................................... 534

Autonomous System (AS) Areas.............................................................................................................................. 534

Area Types............................................................................................................................................................... 535

Networks and Neighbors......................................................................................................................................... 536

Router Types............................................................................................................................................................536

Designated and Backup Designated Routers............................................................................................................538

Link-State Advertisements (LSAs)........................................................................................................................... 538

Router Priority and Cost.......................................................................................................................................... 539

OSPF with Dell Networking OS..................................................................................................................................... 540

Graceful Restart....................................................................................................................................................... 541

Fast Convergence (OSPFv2, IPv4 Only).................................................................................................................. 542

Multi-Process OSPFv2 (IPv4 only).......................................................................................................................... 542

RFC-2328 Compliant OSPF Flooding.......................................................................................................................542

19

OSPF ACK Packing..................................................................................................................................................543

Setting OSPF Adjacency with Cisco Routers........................................................................................................... 543

Conguration Information.............................................................................................................................................. 544

Conguration Task List for OSPFv2 (OSPF for IPv4)...............................................................................................544

Conguration Task List for OSPFv3 (OSPF for IPv6).....................................................................................................558

Enabling IPv6 Unicast Routing.................................................................................................................................558

Assigning IPv6 Addresses on an Interface................................................................................................................559

Assigning Area ID on an Interface.............................................................................................................................559

Assigning OSPFv3 Process ID and Router ID Globally.............................................................................................. 559

Assigning OSPFv3 Process ID and Router ID to a VRF............................................................................................ 560

Conguring Stub Areas............................................................................................................................................560

Conguring Passive-Interface..................................................................................................................................560

Redistributing Routes............................................................................................................................................... 561

Conguring a Default Route......................................................................................................................................561

Enabling OSPFv3 Graceful Restart...........................................................................................................................561

OSPFv3 Authentication Using IPsec........................................................................................................................ 564

Troubleshooting OSPFv3..........................................................................................................................................570

33 Policy-based Routing (PBR)...................................................................................... 571

Overview........................................................................................................................................................................ 571

Implementing Policy-based Routing with Dell Networking OS........................................................................................ 572

Conguration Task List for Policy-based Routing............................................................................................................573

PBR Exceptions (Permit)......................................................................................................................................... 575

Sample Conguration..................................................................................................................................................... 577

34 PIM Sparse-Mode (PIM-SM)....................................................................................579

Implementation Information............................................................................................................................................579

Protocol Overview..........................................................................................................................................................579

Requesting Multicast Trac.....................................................................................................................................579

Refuse Multicast Trac........................................................................................................................................... 580

Send Multicast Trac..............................................................................................................................................580

Conguring PIM-SM......................................................................................................................................................580

Related Conguration Tasks......................................................................................................................................581

Enable PIM-SM.............................................................................................................................................................. 581

Conguring S,G Expiry Timers........................................................................................................................................582

Conguring a Static Rendezvous Point..........................................................................................................................583

Overriding Bootstrap Router Updates......................................................................................................................583

Conguring a Designated Router................................................................................................................................... 583

Creating Multicast Boundaries and Domains.................................................................................................................. 584

35 PIM Source-Specic Mode (PIM-SSM)................................................................... 585

Implementation Information........................................................................................................................................... 585

Important Points to Remember................................................................................................................................585

Congure PIM-SMM..................................................................................................................................................... 585

Related Conguration Tasks.....................................................................................................................................585

Enabling PIM-SSM.........................................................................................................................................................586

20

Dell PowerSwitch S6000 ON User manual

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