Dell PowerSwitch S6000 ON User guide

Dell Configuration Guide for the S6000–ON

System

9.11(0.0)

Notes, cautions, and warnings

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

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

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

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2017 - 01

Rev. A00

Contents

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

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

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

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

2 Configuration Fundamentals........................................................................................................................35

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

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

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

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

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

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

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

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

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

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

Multiple Users in Configuration Mode...........................................................................................................................43

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

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

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

Default Configuration...................................................................................................................................................... 46

Configuring a Host Name............................................................................................................................................... 46

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

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

Configure the Management Port IP Address.........................................................................................................47

Configure a Management Route..............................................................................................................................47

Configuring a Username and Password..................................................................................................................47

Configuring the Enable Password................................................................................................................................. 48

Configuration File Management.....................................................................................................................................48

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

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

Save the Running-Configuration..............................................................................................................................51

Configure the Overload Bit for a Startup Scenario................................................................................................51

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

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

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

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

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

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

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

Contents

3

Configuring Privilege Levels........................................................................................................................................... 56

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

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

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

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

Allowing Access to Different Modes....................................................................................................................... 57

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

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

Configuring Logging........................................................................................................................................................ 59

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

Configuring Logging Format ................................................................................................................................... 61

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

Log Messages in the Internal Buffer............................................................................................................................. 63

Configuration Task List for System Log Management.........................................................................................63

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

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

Configuring a UNIX System as a Syslog Server.................................................................................................... 63

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

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

Configuring Login Activity Tracking........................................................................................................................ 64

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

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

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

Configuring Concurrent Session Limit.................................................................................................................... 66

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

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

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

Display the Logging Buffer and the Logging Configuration....................................................................................... 69

Configuring a UNIX Logging Facility Level................................................................................................................... 69

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

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

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

Configuration Task List for File Transfer Services.................................................................................................72

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

Configuring FTP Server Parameters....................................................................................................................... 72

Configuring FTP Client Parameters.........................................................................................................................73

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

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

Configuring Login Authentication for Terminal Lines............................................................................................ 74

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

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

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

Viewing the Configuration Lock Status.................................................................................................................. 76

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

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

4

Contents

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

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

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

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

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

Configuring 802.1X.......................................................................................................................................................... 84

Related Configuration Tasks.................................................................................................................................... 84

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

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

Configuring dot1x Profile ............................................................................................................................................... 86

Configuring MAC addresses for a do1x Profile............................................................................................................ 87

Configuring the Static MAB and MAB Profile .............................................................................................................87

Configuring Critical VLAN ..............................................................................................................................................88

Configuring Request Identity Re-Transmissions..........................................................................................................89

Configuring a Quiet Period after a Failed Authentication.....................................................................................89

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

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

Configuring Timeouts......................................................................................................................................................92

Configuring Dynamic VLAN Assignment with Port Authentication.......................................................................... 93

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

Configuring a Guest VLAN....................................................................................................................................... 94

Configuring an Authentication-Fail VLAN...............................................................................................................94

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

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

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

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

Configure ACL Range Profiles................................................................................................................................100

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

Configuration Task List for Route Maps................................................................................................................101

Configuring Match Routes......................................................................................................................................103

Configuring Set Conditions.....................................................................................................................................104

Configure a Route Map for Route Redistribution................................................................................................ 105

Configure a Route Map for Route Tagging.......................................................................................................... 106

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

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

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

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

Configure a Standard IP ACL....................................................................................................................................... 108

Configuring a Standard IP ACL Filter.....................................................................................................................109

Configure an Extended IP ACL..................................................................................................................................... 110

Configuring Filters with a Sequence Number........................................................................................................110

Configuring Filters Without a Sequence Number..................................................................................................111

Configure Layer 2 and Layer 3 ACLs............................................................................................................................112

Assign an IP ACL to an Interface.................................................................................................................................. 112

Contents

5

Applying an IP ACL..........................................................................................................................................................113

Counting ACL Hits.................................................................................................................................................... 113

Configure Ingress ACLs..................................................................................................................................................113

Configure Egress ACLs.................................................................................................................................................. 114

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 115

IP Prefix Lists...................................................................................................................................................................115

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

Configuration Task List for Prefix Lists..................................................................................................................116

ACL Resequencing..........................................................................................................................................................119

Resequencing an ACL or Prefix List...................................................................................................................... 120

Route Maps......................................................................................................................................................................121

Implementation Information.....................................................................................................................................121

Flow-Based Monitoring Support for ACLs..................................................................................................................122

Behavior of Flow-Based Monitoring...................................................................................................................... 122

Enabling Flow-Based Monitoring............................................................................................................................123

Configuring IP Mirror Access Group............................................................................................................................124

Sample Configuration.............................................................................................................................................. 125

Example of viewing IP mirror–access–group applied to an Interface...............................................................125

7 Bidirectional Forwarding Detection (BFD)..................................................................................................126

How BFD Works.............................................................................................................................................................126

BFD Packet Format..................................................................................................................................................127

BFD Sessions............................................................................................................................................................ 128

BFD Three-Way Handshake................................................................................................................................... 129

Session State Changes.............................................................................................................................................131

Important Points to Remember.....................................................................................................................................131

Configure BFD.................................................................................................................................................................131

Configure BFD for Physical Ports.......................................................................................................................... 132

Configure BFD for Static Routes........................................................................................................................... 133

Configure BFD for OSPF.........................................................................................................................................136

Configure BFD for OSPFv3.................................................................................................................................... 139

Configure BFD for IS-IS...........................................................................................................................................140

Configure BFD for BGP...........................................................................................................................................142

Configure BFD for VRRP........................................................................................................................................ 149

Configuring Protocol Liveness................................................................................................................................152

Troubleshooting BFD............................................................................................................................................... 152

8 Border Gateway Protocol IPv4 (BGPv4)....................................................................................................154

Autonomous Systems (AS)...........................................................................................................................................154

Sessions and Peers........................................................................................................................................................ 156

Establish a Session...................................................................................................................................................156

Route Reflectors............................................................................................................................................................ 157

BGP Attributes............................................................................................................................................................... 158

Best Path Selection Criteria....................................................................................................................................159

Weight....................................................................................................................................................................... 160

Local Preference...................................................................................................................................................... 160

6

Contents

Multi-Exit Discriminators (MEDs)........................................................................................................................... 161

Origin..........................................................................................................................................................................162

AS Path......................................................................................................................................................................163

Next Hop................................................................................................................................................................... 163

Multiprotocol BGP..........................................................................................................................................................163

Implement BGP with Dell Networking OS...................................................................................................................164

Additional Path (Add-Path) Support..................................................................................................................... 164

Advertise IGP Cost as MED for Redistributed Routes........................................................................................164

Ignore Router-ID in Best-Path Calculation........................................................................................................... 165

Four-Byte AS Numbers...........................................................................................................................................165

AS4 Number Representation..................................................................................................................................165

AS Number Migration.............................................................................................................................................. 167

BGP4 Management Information Base (MIB)....................................................................................................... 168

Important Points to Remember..............................................................................................................................168

Configuration Information............................................................................................................................................. 169

BGP Configuration......................................................................................................................................................... 169

Enabling BGP............................................................................................................................................................ 170

Configuring AS4 Number Representations...........................................................................................................173

Configuring Peer Groups.........................................................................................................................................175

Configuring BGP Fast Fall-Over............................................................................................................................. 177

Configuring Passive Peering................................................................................................................................... 179

Maintaining Existing AS Numbers During an AS Migration.................................................................................179

Allowing an AS Number to Appear in its Own AS Path.......................................................................................180

Enabling Graceful Restart........................................................................................................................................ 181

Enabling Neighbor Graceful Restart...................................................................................................................... 182

Filtering on an AS-Path Attribute...........................................................................................................................182

Regular Expressions as Filters................................................................................................................................ 184

Redistributing Routes.............................................................................................................................................. 185

Enabling Additional Paths........................................................................................................................................186

Configuring IP Community Lists.............................................................................................................................186

Configuring an IP Extended Community List........................................................................................................187

Filtering Routes with Community Lists..................................................................................................................188

Manipulating the COMMUNITY Attribute.............................................................................................................189

Changing MED Attributes.......................................................................................................................................190

Changing the LOCAL_PREFERENCE Attribute..................................................................................................190

Configuring the local System or a Different System to be the Next Hop for BGP-Learned Routes.............191

Changing the WEIGHT Attribute............................................................................................................................192

Enabling Multipath....................................................................................................................................................192

Filtering BGP Routes............................................................................................................................................... 192

Filtering BGP Routes Using Route Maps.............................................................................................................. 194

Filtering BGP Routes Using AS-PATH Information............................................................................................. 194

Configuring BGP Route Reflectors........................................................................................................................195

Aggregating Routes................................................................................................................................................. 196

Configuring BGP Confederations...........................................................................................................................196

Enabling Route Flap Dampening.............................................................................................................................197

Contents

7

Changing BGP Timers............................................................................................................................................. 199

Enabling BGP Neighbor Soft-Reconfiguration.....................................................................................................199

Enabling or disabling BGP neighbors.....................................................................................................................200

Route Map Continue...............................................................................................................................................202

Enabling MBGP Configurations................................................................................................................................... 202

BGP Regular Expression Optimization........................................................................................................................203

Debugging BGP............................................................................................................................................................. 203

Storing Last and Bad PDUs....................................................................................................................................204

Capturing PDUs.......................................................................................................................................................205

PDU Counters..........................................................................................................................................................206

Sample Configurations..................................................................................................................................................206

9 Content Addressable Memory (CAM)........................................................................................................ 213

CAM Allocation............................................................................................................................................................... 213

Test CAM Usage............................................................................................................................................................215

View CAM Profiles......................................................................................................................................................... 215

View CAM-ACL Settings...............................................................................................................................................216

View CAM Usage............................................................................................................................................................217

CAM Optimization..........................................................................................................................................................218

Troubleshoot CAM Profiling..........................................................................................................................................218

QoS CAM Region Limitation................................................................................................................................... 218

Syslog Error When the Table is Full....................................................................................................................... 218

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................219

Syslog Warning for Discrepancies Between Configured Extended Prefixes....................................................219

Unified Forwarding Table (UFT) Modes......................................................................................................................219

Configuring UFT Modes.......................................................................................................................................... 219

10 Control Plane Policing (CoPP)..................................................................................................................221

Configure Control Plane Policing.................................................................................................................................222

Configuring CoPP for Protocols............................................................................................................................223

Configuring CoPP for CPU Queues......................................................................................................................225

Displaying CoPP Configuration .............................................................................................................................226

11 Data Center Bridging (DCB)..................................................................................................................... 228

Ethernet Enhancements in Data Center Bridging.....................................................................................................228

Priority-Based Flow Control...................................................................................................................................229

Enhanced Transmission Selection.........................................................................................................................230

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................231

Data Center Bridging in a Traffic Flow................................................................................................................. 232

Enabling Data Center Bridging.....................................................................................................................................232

DCB Maps and its Attributes................................................................................................................................. 233

Data Center Bridging: Default Configuration............................................................................................................. 234

Configuring Priority-Based Flow Control....................................................................................................................234

Configuring Lossless Queues................................................................................................................................. 235

Configuring PFC in a DCB Map................................................................................................................................... 237

PFC Configuration Notes....................................................................................................................................... 237

8

Contents

PFC Prerequisites and Restrictions.......................................................................................................................238

Applying a DCB Map on a Port.................................................................................................................................... 238

Configuring PFC without a DCB Map.........................................................................................................................239

Configuring Lossless QueuesExample:................................................................................................................. 239

Priority-Based Flow Control Using Dynamic Buffer Method....................................................................................241

Pause and Resume of Traffic................................................................................................................................. 241

Buffer Sizes for Lossless or PFC Packets............................................................................................................ 241

Behavior of Tagged Packets........................................................................................................................................242

Configuration Example for DSCP and PFC Priorities................................................................................................242

SNMP Support for PFC and Buffer Statistics Tracking...........................................................................................243

Performing PFC Using DSCP Bits Instead of 802.1p Bits........................................................................................243

PFC and ETS Configuration Examples....................................................................................................................... 244

Using PFC to Manage Converged Ethernet Traffic................................................................................................. 244

Operations on Untagged Packets............................................................................................................................... 244

Generation of PFC for a Priority for Untagged Packets.......................................................................................... 245

Configure Enhanced Transmission Selection.............................................................................................................245

ETS Prerequisites and Restrictions.......................................................................................................................245

Creating an ETS Priority Group............................................................................................................................. 245

ETS Operation with DCBx......................................................................................................................................246

Configuring Bandwidth Allocation for DCBx CIN.................................................................................................247

Configuring ETS in a DCB Map..............................................................................................................................248

Hierarchical Scheduling in ETS Output Policies.........................................................................................................249

Using ETS to Manage Converged Ethernet Traffic..................................................................................................249

Applying DCB Policies in a Switch Stack....................................................................................................................250

Configure a DCBx Operation....................................................................................................................................... 250

DCBx Operation.......................................................................................................................................................250

DCBx Port Roles......................................................................................................................................................250

DCB Configuration Exchange................................................................................................................................ 252

Configuration Source Election............................................................................................................................... 252

Propagation of DCB Information........................................................................................................................... 253

Auto-Detection and Manual Configuration of the DCBx Version..................................................................... 253

DCBx Example......................................................................................................................................................... 253

DCBx Prerequisites and Restrictions.................................................................................................................... 254

Configuring DCBx....................................................................................................................................................254

Verifying the DCB Configuration.................................................................................................................................258

QoS dot1p Traffic Classification and Queue Assignment.........................................................................................266

Configuring the Dynamic Buffer Method................................................................................................................... 267

Sample DCB Configuration...........................................................................................................................................268

PFC and ETS Configuration Command Examples.............................................................................................. 269

12 Dynamic Host Configuration Protocol (DHCP).........................................................................................270

DHCP Packet Format and Options............................................................................................................................. 270

Assign an IP Address using DHCP...............................................................................................................................272

Implementation Information..........................................................................................................................................273

Configure the System to be a DHCP Server............................................................................................................. 273

Configuring the Server for Automatic Address Allocation................................................................................. 274

Contents

9

Specifying a Default Gateway................................................................................................................................275

Configure a Method of Hostname Resolution..................................................................................................... 275

Using DNS for Address Resolution........................................................................................................................275

Using NetBIOS WINS for Address Resolution..................................................................................................... 276

Creating Manual Binding Entries............................................................................................................................276

Debugging the DHCP Server................................................................................................................................. 276

Using DHCP Clear Commands...............................................................................................................................277

Configure the System to be a DHCP Client...............................................................................................................277

Configuring the DHCP Client System................................................................................................................... 277

DHCP Client on a Management Interface............................................................................................................279

DHCP Client Operation with Other Features.......................................................................................................279

Configure the System for User Port Stacking (Option 230)...................................................................................280

Configure Secure DHCP...............................................................................................................................................280

Option 82...................................................................................................................................................................281

DHCP Snooping........................................................................................................................................................281

Drop DHCP Packets on Snooped VLANs Only....................................................................................................284

Dynamic ARP Inspection........................................................................................................................................ 285

Configuring Dynamic ARP Inspection................................................................................................................... 286

Source Address Validation............................................................................................................................................287

Enabling IP Source Address Validation..................................................................................................................287

DHCP MAC Source Address Validation................................................................................................................288

Enabling IP+MAC Source Address Validation......................................................................................................288

Viewing the Number of SAV Dropped Packets...................................................................................................289

Clearing the Number of SAV Dropped Packets.................................................................................................. 289

13 Equal Cost Multi-Path (ECMP)................................................................................................................290

ECMP for Flow-Based Affinity.................................................................................................................................... 290

Configuring the Hash Algorithm............................................................................................................................ 290

Enabling Deterministic ECMP Next Hop..............................................................................................................290

Configuring the Hash Algorithm Seed................................................................................................................... 291

Link Bundle Monitoring..................................................................................................................................................291

Managing ECMP Group Paths...............................................................................................................................292

Creating an ECMP Group Bundle..........................................................................................................................292

Modifying the ECMP Group Threshold................................................................................................................ 292

Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table.................................... 293

Support for ECMP in host table............................................................................................................................ 294

Support for moving /128 IPv6 Prefixes and /32 IPv4 Prefixes ........................................................................294

14 FIP Snooping............................................................................................................................................295

Fibre Channel over Ethernet........................................................................................................................................295

Ensure Robustness in a Converged Ethernet Network........................................................................................... 295

FIP Snooping on Ethernet Bridges.............................................................................................................................. 297

Using FIP Snooping....................................................................................................................................................... 299

FIP Snooping Prerequisites.................................................................................................................................... 299

Important Points to Remember.............................................................................................................................299

Enabling the FCoE Transit Feature.......................................................................................................................300

10

Contents

Enable FIP Snooping on VLANs.............................................................................................................................300

Configure the FC-MAP Value.................................................................................................................................301

Configure a Port for a Bridge-to-Bridge Link....................................................................................................... 301

Configure a Port for a Bridge-to-FCF Link...........................................................................................................301

Impact on Other Software Features......................................................................................................................301

FIP Snooping Restrictions...................................................................................................................................... 302

Configuring FIP Snooping.......................................................................................................................................302

Displaying FIP Snooping Information...........................................................................................................................303

FCoE Transit Configuration Example..........................................................................................................................308

15 Flex Hash and Optimized Boot-Up............................................................................................................310

Flex Hash Capability Overview..................................................................................................................................... 310

Configuring the Flex Hash Mechanism........................................................................................................................310

Configuring Fast Boot and LACP Fast Switchover.................................................................................................... 311

Optimizing the Boot Time.............................................................................................................................................. 311

Booting Process When Optimized Boot Time Mechanism is Enabled............................................................... 311

Guidelines for Configuring Optimized Booting Mechanism................................................................................ 312

Interoperation of Applications with Fast Boot and System States..........................................................................313

LACP and IPv4 Routing...........................................................................................................................................313

LACP and IPv6 Routing...........................................................................................................................................313

BGP Graceful Restart..............................................................................................................................................314

Cold Boot Caused by Power Cycling the System................................................................................................314

Unexpected Reload of the System........................................................................................................................ 314

Software Upgrade....................................................................................................................................................314

LACP Fast Switchover............................................................................................................................................ 314

Changes to BGP Multipath.....................................................................................................................................315

Delayed Installation of ECMP Routes Into BGP...................................................................................................315

RDMA Over Converged Ethernet (RoCE) Overview................................................................................................315

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces..................................................................................... 316

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 317

Protocol Overview..........................................................................................................................................................317

Ring Status................................................................................................................................................................318

Multiple FRRP Rings................................................................................................................................................ 318

Important FRRP Points........................................................................................................................................... 319

Important FRRP Concepts.....................................................................................................................................320

Implementing FRRP....................................................................................................................................................... 321

FRRP Configuration....................................................................................................................................................... 321

Creating the FRRP Group....................................................................................................................................... 321

Configuring the Control VLAN...............................................................................................................................322

Configuring and Adding the Member VLANs.......................................................................................................323

Setting the FRRP Timers........................................................................................................................................324

Clearing the FRRP Counters..................................................................................................................................324

Viewing the FRRP Configuration...........................................................................................................................324

Viewing the FRRP Information.............................................................................................................................. 324

Troubleshooting FRRP..................................................................................................................................................325

Contents

11

Configuration Checks..............................................................................................................................................325

Sample Configuration and Topology........................................................................................................................... 325

FRRP Support on VLT.................................................................................................................................................. 326

Example Scenario.....................................................................................................................................................327

Important Points to Remember............................................................................................................................. 328

17 GARP VLAN Registration Protocol (GVRP)............................................................................................. 329

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

Configure GVRP............................................................................................................................................................ 330

Related Configuration Tasks..................................................................................................................................330

Enabling GVRP Globally.................................................................................................................................................331

Enabling GVRP on a Layer 2 Interface........................................................................................................................ 331

Configure GVRP Registration.......................................................................................................................................331

Configure a GARP Timer.............................................................................................................................................. 332

18 Internet Group Management Protocol (IGMP).........................................................................................333

IGMP Implementation Information.............................................................................................................................. 333

IGMP Protocol Overview..............................................................................................................................................333

IGMP Version 2........................................................................................................................................................333

IGMP Version 3........................................................................................................................................................335

Configure IGMP.............................................................................................................................................................338

Related Configuration Tasks.................................................................................................................................. 338

Viewing IGMP Enabled Interfaces...............................................................................................................................339

Selecting an IGMP Version...........................................................................................................................................339

Viewing IGMP Groups...................................................................................................................................................339

Adjusting Timers............................................................................................................................................................ 340

Adjusting Query and Response Timers.................................................................................................................340

Enabling IGMP Immediate-Leave.................................................................................................................................341

IGMP Snooping...............................................................................................................................................................341

IGMP Snooping Implementation Information........................................................................................................341

Configuring IGMP Snooping................................................................................................................................... 341

Removing a Group-Port Association.....................................................................................................................342

Disabling Multicast Flooding...................................................................................................................................342

Specifying a Port as Connected to a Multicast Router......................................................................................342

Configuring the Switch as Querier........................................................................................................................ 343

Fast Convergence after MSTP Topology Changes..................................................................................................343

Egress Interface Selection (EIS) for HTTP and IGMP Applications....................................................................... 344

Protocol Separation.................................................................................................................................................344

Enabling and Disabling Management Egress Interface Selection......................................................................345

Handling of Management Route Configuration...................................................................................................346

Handling of Switch-Initiated Traffic......................................................................................................................346

Handling of Switch-Destined Traffic.....................................................................................................................347

Handling of Transit Traffic (Traffic Separation)..................................................................................................348

Mapping of Management Applications and Traffic Type................................................................................... 348

Behavior of Various Applications for Switch-Initiated Traffic ...........................................................................349

Behavior of Various Applications for Switch-Destined Traffic .........................................................................350

12

Contents

Interworking of EIS With Various Applications..................................................................................................... 351

Designating a Multicast Router Interface................................................................................................................... 351

19 Interfaces.................................................................................................................................................352

Basic Interface Configuration...................................................................................................................................... 352

Advanced Interface Configuration.............................................................................................................................. 352

Interface Types..............................................................................................................................................................353

View Basic Interface Information................................................................................................................................ 353

Resetting an Interface to its Factory Default State..................................................................................................355

Enabling a Physical Interface....................................................................................................................................... 355

Physical Interfaces........................................................................................................................................................ 356

Configuration Task List for Physical Interfaces...................................................................................................356

40G to 1G Breakout Cable Adaptor.......................................................................................................................356

Overview of Layer Modes...................................................................................................................................... 357

Configuring Layer 2 (Data Link) Mode................................................................................................................. 357

Configuring Layer 2 (Interface) Mode..................................................................................................................358

Configuring Layer 3 (Network) Mode.................................................................................................................. 358

Configuring Layer 3 (Interface) Mode..................................................................................................................359

Egress Interface Selection (EIS)................................................................................................................................. 359

Important Points to Remember.............................................................................................................................359

Configuring EIS........................................................................................................................................................360

Management Interfaces............................................................................................................................................... 360

Configuring Management Interfaces.................................................................................................................... 360

Configuring a Management Interface on an Ethernet Port............................................................................... 362

VLAN Interfaces............................................................................................................................................................ 363

Loopback Interfaces......................................................................................................................................................363

Null Interfaces................................................................................................................................................................364

Port Channel Interfaces................................................................................................................................................364

Port Channel Definition and Standards................................................................................................................ 364

Port Channel Benefits.............................................................................................................................................364

Port Channel Implementation................................................................................................................................ 365

Interfaces in Port Channels....................................................................................................................................365

Configuration Tasks for Port Channel Interfaces................................................................................................366

Creating a Port Channel......................................................................................................................................... 366

Adding a Physical Interface to a Port Channel.................................................................................................... 366

Reassigning an Interface to a New Port Channel............................................................................................... 368

Configuring the Minimum Oper Up Links in a Port Channel..............................................................................369

Adding or Removing a Port Channel from a VLAN.............................................................................................369

Assigning an IP Address to a Port Channel..........................................................................................................370

Deleting or Disabling a Port Channel.....................................................................................................................370

Load Balancing Through Port Channels................................................................................................................ 371

Changing the Hash Algorithm.................................................................................................................................371

Bulk Configuration......................................................................................................................................................... 372

Interface Range........................................................................................................................................................372

Bulk Configuration Examples..................................................................................................................................373

Defining Interface Range Macros................................................................................................................................374

Contents

13

Define the Interface Range.................................................................................................................................... 374

Choosing an Interface-Range Macro....................................................................................................................374

Monitoring and Maintaining Interfaces....................................................................................................................... 375

Maintenance Using TDR.........................................................................................................................................376

Splitting 40G Ports without Reload.............................................................................................................................376

Splitting QSFP Ports to SFP+ Ports...........................................................................................................................378

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................378

Important Points to Remember............................................................................................................................. 379

Example Scenarios...................................................................................................................................................379

Configuring wavelength for 10–Gigabit SFP+ optics................................................................................................ 381

Link Dampening.............................................................................................................................................................. 381

Important Points to Remember..............................................................................................................................381

Enabling Link Dampening.........................................................................................................................................381

Link Bundle Monitoring................................................................................................................................................. 383

Using Ethernet Pause Frames for Flow Control........................................................................................................383

Enabling Pause Frames...........................................................................................................................................384

Configure the MTU Size on an Interface................................................................................................................... 385

Port-Pipes...................................................................................................................................................................... 385

Auto-Negotiation on Ethernet Interfaces...................................................................................................................386

Setting the Speed of Ethernet Interfaces............................................................................................................386

Set Auto-Negotiation Options............................................................................................................................... 387

View Advanced Interface Information........................................................................................................................ 388

Configuring the Interface Sampling Size..............................................................................................................389

Dynamic Counters.........................................................................................................................................................390

Clearing Interface Counters...................................................................................................................................390

Compressing Configuration Files..................................................................................................................................391

20 IPv4 Routing............................................................................................................................................394

IP Addresses...................................................................................................................................................................395

Implementation Information................................................................................................................................... 395

Configuration Tasks for IP Addresses.........................................................................................................................395

Assigning IP Addresses to an Interface...................................................................................................................... 395

Configuring Static Routes............................................................................................................................................ 396

Configure Static Routes for the Management Interface......................................................................................... 397

Using the Configured Source IP Address in ICMP Messages................................................................................. 398

Configuring the ICMP Source Interface...............................................................................................................398

Configuring the Duration to Establish a TCP Connection........................................................................................398

Enabling Directed Broadcast........................................................................................................................................399

Resolution of Host Names............................................................................................................................................399

Enabling Dynamic Resolution of Host Names............................................................................................................399

Specifying the Local System Domain and a List of Domains...................................................................................400

Configuring DNS with Traceroute...............................................................................................................................400

ARP.................................................................................................................................................................................. 401

Configuration Tasks for ARP........................................................................................................................................ 401

Configuring Static ARP Entries.................................................................................................................................... 401

Enabling Proxy ARP.......................................................................................................................................................402

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Contents

Clearing ARP Cache......................................................................................................................................................402

ARP Learning via Gratuitous ARP............................................................................................................................... 402

Enabling ARP Learning via Gratuitous ARP............................................................................................................... 403

ARP Learning via ARP Request...................................................................................................................................403

Configuring ARP Retries...............................................................................................................................................404

ICMP............................................................................................................................................................................... 404

Configuration Tasks for ICMP..................................................................................................................................... 404

Enabling ICMP Unreachable Messages......................................................................................................................404

UDP Helper.................................................................................................................................................................... 405

Configure UDP Helper............................................................................................................................................ 405

Important Points to Remember.............................................................................................................................405

Enabling UDP Helper.....................................................................................................................................................405

Configuring a Broadcast Address................................................................................................................................406

Configurations Using UDP Helper...............................................................................................................................406

UDP Helper with Broadcast-All Addresses................................................................................................................ 406

UDP Helper with Subnet Broadcast Addresses........................................................................................................ 407

UDP Helper with Configured Broadcast Addresses..................................................................................................407

UDP Helper with No Configured Broadcast Addresses........................................................................................... 408

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

21 IPv6 Routing............................................................................................................................................ 409

Protocol Overview.........................................................................................................................................................409

Extended Address Space........................................................................................................................................ 410

Stateless Autoconfiguration....................................................................................................................................410

IPv6 Headers............................................................................................................................................................ 410

Longest Prefix Match (LPM) Table and IPv6 /65 – /128 support....................................................................411

IPv6 Header Fields................................................................................................................................................... 412

Extension Header Fields.......................................................................................................................................... 414

Addressing.................................................................................................................................................................415

Implementing IPv6 with Dell Networking OS..............................................................................................................416

ICMPv6............................................................................................................................................................................417

Path MTU Discovery......................................................................................................................................................418

IPv6 Neighbor Discovery...............................................................................................................................................418

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................419

Configuring the IPv6 Recursive DNS Server........................................................................................................419

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................420

Displaying IPv6 RDNSS Information..................................................................................................................... 420

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 421

Configuration Tasks for IPv6........................................................................................................................................ 421

Adjusting Your CAM-Profile....................................................................................................................................421

Assigning an IPv6 Address to an Interface...........................................................................................................422

Assigning a Static IPv6 Route................................................................................................................................423

Configuring Telnet with IPv6................................................................................................................................. 423

SNMP over IPv6......................................................................................................................................................423

Displaying IPv6 Information....................................................................................................................................424

Displaying an IPv6 Interface Information..............................................................................................................424

Contents

15

Showing IPv6 Routes..............................................................................................................................................425

Showing the Running-Configuration for an Interface.........................................................................................426

Clearing IPv6 Routes...............................................................................................................................................427

Configuring IPv6 RA Guard.......................................................................................................................................... 427

Configuring IPv6 RA Guard on an Interface.........................................................................................................429

Monitoring IPv6 RA Guard..................................................................................................................................... 429

22 iSCSI Optimization.................................................................................................................................. 430

iSCSI Optimization Overview.......................................................................................................................................430

Monitoring iSCSI Traffic Flows..............................................................................................................................432

Application of Quality of Service to iSCSI Traffic Flows.................................................................................... 432

Information Monitored in iSCSI Traffic Flows......................................................................................................432

Detection and Auto-Configuration for Dell EqualLogic Arrays.......................................................................... 433

Configuring Detection and Ports for Dell Compellent Arrays............................................................................ 433

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer...............................................................434

Enable and Disable iSCSI Optimization................................................................................................................. 434

Default iSCSI Optimization Values.............................................................................................................................. 435

iSCSI Optimization Prerequisites.................................................................................................................................435

Configuring iSCSI Optimization................................................................................................................................... 435

Displaying iSCSI Optimization Information................................................................................................................. 437

23 Intermediate System to Intermediate System..........................................................................................439

IS-IS Protocol Overview............................................................................................................................................... 439

IS-IS Addressing.............................................................................................................................................................439

Multi-Topology IS-IS..................................................................................................................................................... 440

Transition Mode.......................................................................................................................................................440

Interface Support..................................................................................................................................................... 441

Adjacencies................................................................................................................................................................441

Graceful Restart............................................................................................................................................................. 441

Timers........................................................................................................................................................................ 441

Implementation Information.......................................................................................................................................... 441

Configuration Information.............................................................................................................................................442

Configuration Tasks for IS-IS.................................................................................................................................443

Configuring the Distance of a Route.................................................................................................................... 450

Changing the IS-Type..............................................................................................................................................451

Redistributing IPv4 Routes.....................................................................................................................................453

Redistributing IPv6 Routes.....................................................................................................................................454

Configuring Authentication Passwords................................................................................................................ 455

Setting the Overload Bit.........................................................................................................................................455

Debugging IS-IS.......................................................................................................................................................456

IS-IS Metric Styles.........................................................................................................................................................457

Configure Metric Values............................................................................................................................................... 457

Maximum Values in the Routing Table..................................................................................................................458

Change the IS-IS Metric Style in One Level Only............................................................................................... 458

Leaks from One Level to Another......................................................................................................................... 459

Sample Configurations..................................................................................................................................................460

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Contents

24 Link Aggregation Control Protocol (LACP)..............................................................................................463

Introduction to Dynamic LAGs and LACP.................................................................................................................. 463

Important Points to Remember.............................................................................................................................463

LACP Modes............................................................................................................................................................ 464

Configuring LACP Commands...............................................................................................................................464

LACP Configuration Tasks........................................................................................................................................... 465

Creating a LAG........................................................................................................................................................ 465

Configuring the LAG Interfaces as Dynamic........................................................................................................465

Setting the LACP Long Timeout........................................................................................................................... 466

Monitoring and Debugging LACP..........................................................................................................................466

Shared LAG State Tracking..........................................................................................................................................467

Configuring Shared LAG State Tracking.............................................................................................................. 467

Important Points about Shared LAG State Tracking..........................................................................................469

LACP Basic Configuration Example............................................................................................................................ 469

Configure a LAG on ALPHA...................................................................................................................................469

25 Layer 2.....................................................................................................................................................478

Manage the MAC Address Table.................................................................................................................................478

Clearing the MAC Address Table...........................................................................................................................478

Setting the Aging Time for Dynamic Entries........................................................................................................478

Configuring a Static MAC Address........................................................................................................................479

Displaying the MAC Address Table....................................................................................................................... 479

MAC Learning Limit.......................................................................................................................................................479

Setting the MAC Learning Limit............................................................................................................................480

mac learning-limit Dynamic.................................................................................................................................... 480

mac learning-limit mac-address-sticky................................................................................................................. 480

mac learning-limit station-move............................................................................................................................. 481

mac learning-limit no-station-move....................................................................................................................... 481

Learning Limit Violation Actions............................................................................................................................. 481

Setting Station Move Violation Actions................................................................................................................482

Recovering from Learning Limit and Station Move Violations...........................................................................482

Disabling MAC Address Learning on the System................................................................................................ 483

NIC Teaming...................................................................................................................................................................483

Configure Redundant Pairs.......................................................................................................................................... 484

Important Points about Configuring Redundant Pairs........................................................................................486

Far-End Failure Detection.............................................................................................................................................487

FEFD State Changes...............................................................................................................................................488

Configuring FEFD.................................................................................................................................................... 489

Enabling FEFD on an Interface.............................................................................................................................. 489

Debugging FEFD......................................................................................................................................................490

26 Link Layer Discovery Protocol (LLDP).....................................................................................................492

802.1AB (LLDP) Overview........................................................................................................................................... 492

Protocol Data Units.................................................................................................................................................492

Optional TLVs.................................................................................................................................................................493

Contents

17

Management TLVs..................................................................................................................................................493

TIA-1057 (LLDP-MED) Overview............................................................................................................................... 495

TIA Organizationally Specific TLVs....................................................................................................................... 495

Configure LLDP............................................................................................................................................................. 499

Related Configuration Tasks..................................................................................................................................499

Important Points to Remember.............................................................................................................................499

LLDP Compatibility..................................................................................................................................................500

CONFIGURATION versus INTERFACE Configurations........................................................................................... 500

Enabling LLDP................................................................................................................................................................500

Disabling and Undoing LLDP...................................................................................................................................501

Enabling LLDP on Management Ports........................................................................................................................ 501

Disabling and Undoing LLDP on Management Ports...........................................................................................501

Advertising TLVs............................................................................................................................................................ 501

Viewing the LLDP Configuration.................................................................................................................................503

Viewing Information Advertised by Adjacent LLDP Agents.....................................................................................503

Configuring LLDPDU Intervals.....................................................................................................................................504

Configuring Transmit and Receive Mode...................................................................................................................505

Configuring the Time to Live Value.............................................................................................................................505

Debugging LLDP............................................................................................................................................................506

Relevant Management Objects................................................................................................................................... 507

27 Microsoft Network Load Balancing.......................................................................................................... 512

NLB Unicast Mode Scenario.........................................................................................................................................512

NLB Multicast Mode Scenario......................................................................................................................................512

Limitations of the NLB Feature.................................................................................................................................... 513

Microsoft Clustering...................................................................................................................................................... 513

Enable and Disable VLAN Flooding ............................................................................................................................. 513

Configuring a Switch for NLB ..................................................................................................................................... 513

Enabling a Switch for Multicast NLB.....................................................................................................................514

28 Multicast Source Discovery Protocol (MSDP)......................................................................................... 515

Protocol Overview......................................................................................................................................................... 515

Anycast RP..................................................................................................................................................................... 516

Implementation Information.......................................................................................................................................... 517

Configure Multicast Source Discovery Protocol........................................................................................................ 517

Related Configuration Tasks...................................................................................................................................517

Enable MSDP..................................................................................................................................................................521

Manage the Source-Active Cache..............................................................................................................................522

Viewing the Source-Active Cache........................................................................................................................ 522

Limiting the Source-Active Cache........................................................................................................................ 522

Clearing the Source-Active Cache........................................................................................................................523

Enabling the Rejected Source-Active Cache.......................................................................................................523

Accept Source-Active Messages that Fail the RFP Check..................................................................................... 523

Specifying Source-Active Messages.......................................................................................................................... 526

Limiting the Source-Active Messages from a Peer.................................................................................................. 527

Preventing MSDP from Caching a Local Source...................................................................................................... 527

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Contents

Preventing MSDP from Caching a Remote Source..................................................................................................528

Preventing MSDP from Advertising a Local Source.................................................................................................528

Logging Changes in Peership States.......................................................................................................................... 529

Terminating a Peership.................................................................................................................................................529

Clearing Peer Statistics................................................................................................................................................ 530

Debugging MSDP..........................................................................................................................................................530

MSDP with Anycast RP................................................................................................................................................ 531

Configuring Anycast RP................................................................................................................................................532

Reducing Source-Active Message Flooding........................................................................................................ 533

Specifying the RP Address Used in SA Messages..............................................................................................533

MSDP Sample Configurations..................................................................................................................................... 535

29 Multiple Spanning Tree Protocol (MSTP)................................................................................................538

Protocol Overview.........................................................................................................................................................538

Spanning Tree Variations..............................................................................................................................................539

Implementation Information................................................................................................................................... 539

Configure Multiple Spanning Tree Protocol...............................................................................................................539

Related Configuration Tasks..................................................................................................................................540

Enable Multiple Spanning Tree Globally......................................................................................................................540

Adding and Removing Interfaces................................................................................................................................ 540

Creating Multiple Spanning Tree Instances................................................................................................................ 541

Influencing MSTP Root Selection............................................................................................................................... 542

Interoperate with Non-Dell Bridges.............................................................................................................................543

Changing the Region Name or Revision.....................................................................................................................543

Modifying Global Parameters.......................................................................................................................................543

Modifying the Interface Parameters...........................................................................................................................545

Configuring an EdgePort..............................................................................................................................................546

Flush MAC Addresses after a Topology Change...................................................................................................... 546

MSTP Sample Configurations......................................................................................................................................547

Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-

ConfigurationSFTOS Example Running-Configuration.......................................................................................547

Debugging and Verifying MSTP Configurations........................................................................................................ 551

30 Multicast Features...................................................................................................................................553

Enabling IP Multicast.....................................................................................................................................................553

Implementation Information......................................................................................................................................... 553

Multicast Policies...........................................................................................................................................................554

IPv4 Multicast Policies............................................................................................................................................554

Understanding Multicast Traceroute (mtrace)..........................................................................................................561

Important Points to Remember.............................................................................................................................562

Printing Multicast Traceroute (mtrace) Paths..........................................................................................................562

Supported Error Codes.................................................................................................................................................563

mtrace Scenarios...........................................................................................................................................................564

31 Object Tracking........................................................................................................................................570

Object Tracking Overview............................................................................................................................................570

Contents

19

Track Layer 2 Interfaces..........................................................................................................................................571

Track Layer 3 Interfaces..........................................................................................................................................571

Track IPv4 and IPv6 Routes...................................................................................................................................572

Set Tracking Delays.................................................................................................................................................573

VRRP Object Tracking............................................................................................................................................573

Object Tracking Configuration.....................................................................................................................................573

Tracking a Layer 2 Interface...................................................................................................................................573

Tracking a Layer 3 Interface...................................................................................................................................574

Track an IPv4/IPv6 Route......................................................................................................................................576

Displaying Tracked Objects.......................................................................................................................................... 579

32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................581

Protocol Overview......................................................................................................................................................... 581

Autonomous System (AS) Areas........................................................................................................................... 581

Area Types................................................................................................................................................................582

Networks and Neighbors........................................................................................................................................583

Router Types............................................................................................................................................................583

Designated and Backup Designated Routers.......................................................................................................585

Link-State Advertisements (LSAs).......................................................................................................................585

Router Priority and Cost.........................................................................................................................................586

OSPF with Dell Networking OS...................................................................................................................................587

Graceful Restart...................................................................................................................................................... 588

Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................. 589

Multi-Process OSPFv2 with VRF..........................................................................................................................589

RFC-2328 Compliant OSPF Flooding...................................................................................................................589

OSPF ACK Packing.................................................................................................................................................590

Setting OSPF Adjacency with Cisco Routers......................................................................................................590

Configuration Information............................................................................................................................................. 591

Configuration Task List for OSPFv2 (OSPF for IPv4)........................................................................................591

Configuration Task List for OSPFv3 (OSPF for IPv6).............................................................................................605

Enabling IPv6 Unicast Routing.............................................................................................................................. 606

Applying cost for OSPFv3......................................................................................................................................606

Assigning IPv6 Addresses on an Interface...........................................................................................................606

Assigning Area ID on an Interface..........................................................................................................................607

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................607

Assigning OSPFv3 Process ID and Router ID to a VRF..................................................................................... 608

Configuring Stub Areas...........................................................................................................................................608

Configuring Passive-Interface............................................................................................................................... 608

Redistributing Routes............................................................................................................................................. 609

Configuring a Default Route.................................................................................................................................. 609

Enabling OSPFv3 Graceful Restart....................................................................................................................... 610

OSPFv3 Authentication Using IPsec..................................................................................................................... 612

Troubleshooting OSPFv3........................................................................................................................................618

33 Policy-based Routing (PBR)....................................................................................................................620

Overview........................................................................................................................................................................ 620

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Dell PowerSwitch S6000 ON User guide

Dell PowerSwitch S6000 ON User guide

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