Dell PowerSwitch S6000 ON User guide

Dell Conguration Guide for the S6000–ON

System

9.14.0.0

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.

trademarks may be trademarks of their respective owners.

2018 - 07

Rev. A00

Contents

1 About this Guide...........................................................................................................................................37

Audience............................................................................................................................................................................37

Conventions...................................................................................................................................................................... 37

Related Documents..........................................................................................................................................................37

2 Conguration Fundamentals........................................................................................................................ 38

Accessing the Command Line........................................................................................................................................38

CLI Modes.........................................................................................................................................................................38

Navigating CLI Modes...............................................................................................................................................40

The do Command............................................................................................................................................................ 43

Undoing Commands........................................................................................................................................................ 43

Obtaining Help..................................................................................................................................................................44

Entering and Editing Commands....................................................................................................................................44

Command History............................................................................................................................................................45

Filtering show Command Outputs.................................................................................................................................45

Example of the grep Keyword.................................................................................................................................. 45

Multiple Users in Conguration Mode...........................................................................................................................46

3 Getting Started............................................................................................................................................47

Console Access................................................................................................................................................................48

Serial Console.............................................................................................................................................................48

Default Conguration...................................................................................................................................................... 49

Conguring a Host Name............................................................................................................................................... 49

Accessing the System Remotely....................................................................................................................................49

Accessing the System Remotely............................................................................................................................. 50

Congure the Management Port IP Address.........................................................................................................50

Congure a Management Route..............................................................................................................................50

Conguring a Username and Password..................................................................................................................50

Conguring the Enable Password...................................................................................................................................51

Conguration File Management.....................................................................................................................................52

Copy Files to and from the System......................................................................................................................... 52

Mounting an NFS File System..................................................................................................................................53

Save the Running-Conguration..............................................................................................................................54

Congure the Overload Bit for a Startup Scenario............................................................................................... 55

Viewing Files...............................................................................................................................................................55

Managing the File System.............................................................................................................................................. 56

View Command History.................................................................................................................................................. 56

Upgrading Dell EMC Networking OS.............................................................................................................................57

Using HTTP for File Transfers........................................................................................................................................ 57

Verify Software Images Before Installation...................................................................................................................58

4 Management............................................................................................................................................... 59

Contents

3

Conguring Privilege Levels........................................................................................................................................... 59

Creating a Custom Privilege Level...........................................................................................................................60

Removing a Command from EXEC Mode.............................................................................................................. 60

Moving a Command from EXEC Privilege Mode to EXEC Mode....................................................................... 60

Allowing Access to CONFIGURATION Mode Commands....................................................................................60

Allowing Access to Dierent Modes........................................................................................................................60

Applying a Privilege Level to a Username............................................................................................................... 62

Applying a Privilege Level to a Terminal Line.......................................................................................................... 62

Conguring Logging........................................................................................................................................................ 62

Audit and Security Logs............................................................................................................................................ 63

Conguring Logging Format ...................................................................................................................................64

Setting Up a Secure Connection to a Syslog Server.............................................................................................64

Log Messages in the Internal Buer..............................................................................................................................66

Conguration Task List for System Log Management..........................................................................................66

Disabling System Logging...............................................................................................................................................66

Sending System Messages to a Syslog Server............................................................................................................66

Conguring a UNIX System as a Syslog Server.....................................................................................................66

Track Login Activity..........................................................................................................................................................67

Restrictions for Tracking Login Activity...................................................................................................................67

Conguring Login Activity Tracking......................................................................................................................... 67

Display Login Statistics..............................................................................................................................................68

Limit Concurrent Login Sessions....................................................................................................................................69

Restrictions for Limiting the Number of Concurrent Sessions............................................................................ 69

Conguring Concurrent Session Limit.....................................................................................................................69

Enabling the System to Clear Existing Sessions.................................................................................................... 70

Enabling Secured CLI Mode............................................................................................................................................ 71

Changing System Logging Settings............................................................................................................................... 71

Display the Logging Buer and the Logging Conguration........................................................................................ 72

Conguring a UNIX Logging Facility Level.................................................................................................................... 72

Synchronizing Log Messages......................................................................................................................................... 73

Enabling Timestamp on Syslog Messages.................................................................................................................... 74

File Transfer Services.......................................................................................................................................................74

Conguration Task List for File Transfer Services..................................................................................................75

Enabling the FTP Server...........................................................................................................................................75

Conguring FTP Server Parameters....................................................................................................................... 75

Conguring FTP Client Parameters......................................................................................................................... 76

Terminal Lines................................................................................................................................................................... 76

Denying and Permitting Access to a Terminal Line................................................................................................76

Conguring Login Authentication for Terminal Lines............................................................................................. 77

Setting Timeout for EXEC Privilege Mode................................................................................................................... 78

Using Telnet to get to Another Network Device..........................................................................................................79

Lock CONFIGURATION Mode....................................................................................................................................... 79

Viewing the Conguration Lock Status...................................................................................................................79

Reloading the system...................................................................................................................................................... 80

Restoring the Factory Default Settings......................................................................................................................... 81

4

Contents

Important Points to Remember................................................................................................................................ 81

Restoring Factory Default Environment Variables.................................................................................................. 81

Viewing the Reason for Last System Reboot...............................................................................................................83

5 802.1X..........................................................................................................................................................84

Port-Authentication Process..........................................................................................................................................86

EAP over RADIUS......................................................................................................................................................86

Conguring 802.1X........................................................................................................................................................... 87

Related Conguration Tasks..................................................................................................................................... 87

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

Enabling 802.1X................................................................................................................................................................ 88

Conguring dot1x Prole ................................................................................................................................................89

Conguring MAC addresses for a do1x Prole.............................................................................................................90

Conguring the Static MAB and MAB Prole .............................................................................................................90

Conguring Critical VLAN .............................................................................................................................................. 91

Conguring Request Identity Re-Transmissions...........................................................................................................92

Conguring a Quiet Period after a Failed Authentication..................................................................................... 92

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 93

Re-Authenticating a Port................................................................................................................................................94

Conguring Timeouts......................................................................................................................................................95

Conguring Dynamic VLAN Assignment with Port Authentication.......................................................................... 96

Guest and Authentication-Fail VLANs...........................................................................................................................97

Conguring a Guest VLAN........................................................................................................................................97

Conguring an Authentication-Fail VLAN............................................................................................................... 97

6 Access Control Lists (ACLs)........................................................................................................................ 99

IP Access Control Lists (ACLs).....................................................................................................................................100

CAM Usage................................................................................................................................................................101

Implementing ACLs on Dell EMC Networking OS................................................................................................ 101

Congure ACL Range Proles................................................................................................................................ 103

Important Points to Remember....................................................................................................................................104

Conguration Task List for Route Maps................................................................................................................104

Conguring Match Routes......................................................................................................................................106

Conguring Set Conditions..................................................................................................................................... 107

Congure a Route Map for Route Redistribution.................................................................................................108

Congure a Route Map for Route Tagging........................................................................................................... 109

Continue Clause........................................................................................................................................................109

IP Fragment Handling..................................................................................................................................................... 110

IP Fragments ACL Examples................................................................................................................................... 110

Layer 4 ACL Rules Examples................................................................................................................................... 110

Congure a Standard IP ACL..........................................................................................................................................111

Conguring a Standard IP ACL Filter......................................................................................................................112

Congure an Extended IP ACL......................................................................................................................................113

Conguring Filters with a Sequence Number........................................................................................................113

Conguring Filters Without a Sequence Number................................................................................................. 116

Congure Layer 2 and Layer 3 ACLs............................................................................................................................ 116

Contents

5

Assign an IP ACL to an Interface...................................................................................................................................117

Applying an IP ACL..........................................................................................................................................................117

Counting ACL Hits.................................................................................................................................................... 118

Congure Ingress ACLs.................................................................................................................................................. 118

Congure Egress ACLs...................................................................................................................................................119

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 120

IP Prex Lists.................................................................................................................................................................. 120

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

Conguration Task List for Prex Lists...................................................................................................................121

ACL Remarks.................................................................................................................................................................. 124

Conguring a Remark.............................................................................................................................................. 124

Deleting a Remark.................................................................................................................................................... 125

ACL Resequencing......................................................................................................................................................... 126

Resequencing an ACL or Prex List.......................................................................................................................126

Route Maps..................................................................................................................................................................... 127

Implementation Information.....................................................................................................................................127

Flow-Based Monitoring..................................................................................................................................................128

Behavior of Flow-Based Monitoring.......................................................................................................................128

Enabling Flow-Based Monitoring............................................................................................................................129

Conguring IP Mirror Access Group............................................................................................................................ 130

Sample Conguration................................................................................................................................................131

Example of viewing IP mirror–access–group applied to an Interface................................................................132

7 Bidirectional Forwarding Detection (BFD).................................................................................................. 133

How BFD Works............................................................................................................................................................. 133

BFD Packet Format..................................................................................................................................................134

BFD Sessions............................................................................................................................................................ 135

BFD Three-Way Handshake.................................................................................................................................... 136

Session State Changes............................................................................................................................................138

Important Points to Remember.................................................................................................................................... 138

Congure BFD................................................................................................................................................................ 138

Congure BFD for Physical Ports...........................................................................................................................139

Congure BFD for Static Routes............................................................................................................................140

Congure BFD for IPv6 Static Routes...................................................................................................................144

Congure BFD for OSPF.........................................................................................................................................146

Congure BFD for OSPFv3.....................................................................................................................................150

Congure BFD for IS-IS...........................................................................................................................................153

Congure BFD for BGP...........................................................................................................................................155

Congure BFD for VRRP.........................................................................................................................................163

Conguring Protocol Liveness................................................................................................................................165

8 Border Gateway Protocol (BGP)................................................................................................................ 166

Border Gateway Protocol version 4 (BGPv4).............................................................................................................166

Autonomous Systems (AS)...........................................................................................................................................166

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

Four-Byte AS Numbers............................................................................................................................................170

6

Contents

Multiprotocol BGP..........................................................................................................................................................170

MBGP for IPv4 MulticastBGP Address Family modelIPv4 and IPv6 address family........................................ 171

Sessions and Peers......................................................................................................................................................... 171

Establish a Session....................................................................................................................................................171

Implementing BGP global and address family............................................................................................................. 172

BGP global conguration default values................................................................................................................ 173

BGP Attributes for selecting Best Path.......................................................................................................................173

Best Path Selection Criteria.................................................................................................................................... 174

Weight........................................................................................................................................................................175

Local Preference....................................................................................................................................................... 176

Multi-Exit Discriminators (MEDs)...........................................................................................................................176

Origin.......................................................................................................................................................................... 177

AS Path...................................................................................................................................................................... 178

Next Hop................................................................................................................................................................... 178

Implement BGP with Dell EMC Networking OS.........................................................................................................179

Additional Path (Add-Path) Support......................................................................................................................179

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 179

Ignore Router-ID in Best-Path Calculation............................................................................................................ 180

AS Number Migration.............................................................................................................................................. 180

BGP4 Management Information Base (MIB).........................................................................................................181

Important Points to Remember...............................................................................................................................181

Conguration Information..............................................................................................................................................182

Conguring a basic BGP network................................................................................................................................ 182

Enabling BGP............................................................................................................................................................ 182

Conguring a BGP peer...........................................................................................................................................185

Conguring AS4 Number Representations........................................................................................................... 186

Conguring a BGP VRF address family..................................................................................................................187

Route-refresh and Soft-reconguration................................................................................................................189

Aggregating Routes..................................................................................................................................................192

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

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

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

Conguring Peer Groups.........................................................................................................................................195

Conguring BGP Fast Fall-Over............................................................................................................................ 203

Conguring Passive Peering...................................................................................................................................204

Maintaining Existing AS Numbers During an AS Migration................................................................................ 205

Allowing an AS Number to Appear in its Own AS Path...................................................................................... 206

Enabling Graceful Restart.......................................................................................................................................207

Filtering on an AS-Path Attribute.......................................................................................................................... 208

Regular Expressions as Filters................................................................................................................................209

Redistributing Routes...............................................................................................................................................210

Enabling Additional Paths.........................................................................................................................................211

Conguring IP Community Lists..............................................................................................................................211

Conguring an IP Extended Community List........................................................................................................ 212

Filtering Routes with Community Lists.................................................................................................................. 213

Contents

7

Manipulating the COMMUNITY Attribute.............................................................................................................214

Changing MED Attributes....................................................................................................................................... 215

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 216

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............. 216

Changing the WEIGHT Attribute............................................................................................................................217

Enabling Multipath....................................................................................................................................................217

Route Reectors.......................................................................................................................................................218

Conguring BGP Confederations........................................................................................................................... 219

Enabling Route Flap Dampening.............................................................................................................................219

Changing BGP Timers.............................................................................................................................................222

Setting the extended timer.....................................................................................................................................222

Enabling or disabling BGP neighbors.....................................................................................................................223

Route Map Continue............................................................................................................................................... 224

Enabling MBGP Congurations................................................................................................................................... 225

MBGP support for IPv6................................................................................................................................................225

Conguring IPv6 MBGP between peers.................................................................................................................... 225

Example-Conguring IPv4 and IPv6 neighbors......................................................................................................... 226

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor............................................... 228

BGP Regular Expression Optimization........................................................................................................................230

Debugging BGP............................................................................................................................................................. 230

Storing Last and Bad PDUs.....................................................................................................................................231

Capturing PDUs....................................................................................................................................................... 232

PDU Counters.......................................................................................................................................................... 233

9 Content Addressable Memory (CAM)........................................................................................................ 234

CAM Allocation...............................................................................................................................................................234

Test CAM Usage............................................................................................................................................................236

View CAM Proles.........................................................................................................................................................236

View CAM-ACL Settings...............................................................................................................................................237

View CAM Usage...........................................................................................................................................................238

Conguring CAM Threshold and Silence Period........................................................................................................239

Setting CAM Threshold and Silence Period......................................................................................................... 239

CAM Optimization......................................................................................................................................................... 240

Troubleshoot CAM Proling..........................................................................................................................................240

QoS CAM Region Limitation...................................................................................................................................240

Syslog Error When the Table is Full........................................................................................................................ 241

Syslog Warning Upon 90 Percent Utilization of CAM..........................................................................................241

Syslog Warning for Discrepancies Between Congured Extended Prexes.....................................................241

Unied Forwarding Table (UFT) Modes...................................................................................................................... 241

Conguring UFT Modes.......................................................................................................................................... 241

10 Control Plane Policing (CoPP)..................................................................................................................243

Congure Control Plane Policing................................................................................................................................. 244

Conguring CoPP for Protocols............................................................................................................................ 245

Conguring CoPP for CPU Queues.......................................................................................................................247

Displaying CoPP Conguration ............................................................................................................................. 248

8

Contents

11 Data Center Bridging (DCB)..................................................................................................................... 250

Ethernet Enhancements in Data Center Bridging..................................................................................................... 250

Priority-Based Flow Control.................................................................................................................................... 251

Enhanced Transmission Selection..........................................................................................................................252

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................253

Data Center Bridging in a Trac Flow.................................................................................................................. 254

Enabling Data Center Bridging.....................................................................................................................................254

DCB Maps and its Attributes................................................................................................................................. 255

Data Center Bridging: Default Conguration..............................................................................................................256

Conguring Priority-Based Flow Control....................................................................................................................256

Conguring Lossless Queues..................................................................................................................................257

Conguring PFC in a DCB Map................................................................................................................................... 259

PFC Conguration Notes....................................................................................................................................... 259

PFC Prerequisites and Restrictions.......................................................................................................................260

Applying a DCB Map on a Port....................................................................................................................................260

Conguring PFC without a DCB Map..........................................................................................................................261

Conguring Lossless QueuesExample:.................................................................................................................. 261

Conguring PFC Asymmetric.......................................................................................................................................262

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................263

Pause and Resume of Trac..................................................................................................................................263

Buer Sizes for Lossless or PFC Packets............................................................................................................ 263

Behavior of Tagged Packets.........................................................................................................................................264

Conguration Example for DSCP and PFC Priorities................................................................................................264

SNMP Support for PFC and Buer Statistics Tracking........................................................................................... 265

Performing PFC Using DSCP Bits Instead of 802.1p Bits.........................................................................................265

PFC and ETS Conguration Examples........................................................................................................................266

Using PFC to Manage Converged Ethernet Trac.................................................................................................. 266

Operations on Untagged Packets................................................................................................................................266

Generation of PFC for a Priority for Untagged Packets........................................................................................... 267

Congure Enhanced Transmission Selection..............................................................................................................267

ETS Prerequisites and Restrictions........................................................................................................................267

Creating an ETS Priority Group..............................................................................................................................267

ETS Operation with DCBx......................................................................................................................................269

Conguring Bandwidth Allocation for DCBx CIN................................................................................................ 269

Conguring ETS in a DCB Map..............................................................................................................................270

Hierarchical Scheduling in ETS Output Policies..........................................................................................................271

Using ETS to Manage Converged Ethernet Trac................................................................................................... 272

Applying DCB Policies in a Switch Stack.................................................................................................................... 272

Congure a DCBx Operation........................................................................................................................................ 272

DCBx Operation....................................................................................................................................................... 272

DCBx Port Roles...................................................................................................................................................... 273

DCB Conguration Exchange.................................................................................................................................274

Conguration Source Election................................................................................................................................274

Propagation of DCB Information............................................................................................................................275

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 275

Contents

9

DCBx Example..........................................................................................................................................................276

DCBx Prerequisites and Restrictions.....................................................................................................................276

Conguring DCBx.................................................................................................................................................... 276

Verifying the DCB Conguration................................................................................................................................. 280

QoS dot1p Trac Classication and Queue Assignment..........................................................................................288

Conguring the Dynamic Buer Method................................................................................................................... 289

Sample DCB Conguration...........................................................................................................................................290

PFC and ETS Conguration Command Examples...............................................................................................292

12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 293

DHCP Packet Format and Options............................................................................................................................. 293

Assign an IP Address using DHCP...............................................................................................................................295

Implementation Information..........................................................................................................................................296

Congure the System to be a DHCP Server............................................................................................................. 296

Conguring the Server for Automatic Address Allocation.................................................................................. 297

Specifying a Default Gateway................................................................................................................................ 298

Congure a Method of Hostname Resolution..................................................................................................... 298

Using DNS for Address Resolution........................................................................................................................298

Using NetBIOS WINS for Address Resolution..................................................................................................... 299

Creating Manual Binding Entries............................................................................................................................299

Debugging the DHCP Server.................................................................................................................................299

Using DHCP Clear Commands.............................................................................................................................. 300

Congure the System to be a DHCP Client...............................................................................................................300

Conguring the DHCP Client System...................................................................................................................300

DHCP Client on a Management Interface............................................................................................................302

DHCP Client Operation with Other Features.......................................................................................................302

DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................ 303

Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 303

Congure the System for User Port Stacking (Option 230)................................................................................... 305

Congure Secure DHCP...............................................................................................................................................305

Option 82..................................................................................................................................................................305

DHCP Snooping.......................................................................................................................................................306

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 310

Dynamic ARP Inspection.......................................................................................................................................... 311

Conguring Dynamic ARP Inspection.................................................................................................................... 312

Source Address Validation............................................................................................................................................. 313

Enabling IP Source Address Validation...................................................................................................................313

DHCP MAC Source Address Validation................................................................................................................. 314

Enabling IP+MAC Source Address Validation........................................................................................................314

Viewing the Number of SAV Dropped Packets.................................................................................................... 315

Clearing the Number of SAV Dropped Packets....................................................................................................315

13 Equal Cost Multi-Path (ECMP).................................................................................................................316

ECMP for Flow-Based Anity......................................................................................................................................316

Conguring the Hash Algorithm............................................................................................................................. 316

Enabling Deterministic ECMP Next Hop............................................................................................................... 316

10

Contents

Conguring the Hash Algorithm Seed................................................................................................................... 317

Link Bundle Monitoring.................................................................................................................................................. 317

Managing ECMP Group Paths................................................................................................................................318

Creating an ECMP Group Bundle...........................................................................................................................318

Modifying the ECMP Group Threshold................................................................................................................. 318

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table.......................................319

Support for ECMP in host table............................................................................................................................ 320

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 320

14 FIP Snooping............................................................................................................................................ 321

Fibre Channel over Ethernet.........................................................................................................................................321

Ensure Robustness in a Converged Ethernet Network.............................................................................................321

FIP Snooping on Ethernet Bridges.............................................................................................................................. 323

Using FIP Snooping....................................................................................................................................................... 325

FIP Snooping Prerequisites.....................................................................................................................................325

Important Points to Remember............................................................................................................................. 325

Enabling the FCoE Transit Feature........................................................................................................................326

Enable FIP Snooping on VLANs.............................................................................................................................326

Congure the FC-MAP Value.................................................................................................................................327

Congure a Port for a Bridge-to-Bridge Link....................................................................................................... 327

Congure a Port for a Bridge-to-FCF Link........................................................................................................... 327

Impact on Other Software Features......................................................................................................................327

FIP Snooping Restrictions...................................................................................................................................... 328

Conguring FIP Snooping.......................................................................................................................................328

Displaying FIP Snooping Information...........................................................................................................................329

FCoE Transit Conguration Example...........................................................................................................................334

15 Flex Hash and Optimized Boot-Up............................................................................................................336

Flex Hash Capability Overview.....................................................................................................................................336

Conguring the Flex Hash Mechanism.......................................................................................................................336

Conguring Fast Boot and LACP Fast Switchover................................................................................................... 337

Optimizing the Boot Time.............................................................................................................................................337

Booting Process When Optimized Boot Time Mechanism is Enabled.............................................................. 337

Guidelines for Conguring Optimized Booting Mechanism................................................................................338

Interoperation of Applications with Fast Boot and System States..........................................................................339

LACP and IPv4 Routing.......................................................................................................................................... 339

LACP and IPv6 Routing.......................................................................................................................................... 339

BGP Graceful Restart............................................................................................................................................. 340

Cold Boot Caused by Power Cycling the System................................................................................................340

Unexpected Reload of the System........................................................................................................................340

Software Upgrade................................................................................................................................................... 340

LACP Fast Switchover............................................................................................................................................340

Changes to BGP Multipath..................................................................................................................................... 341

Delayed Installation of ECMP Routes Into BGP....................................................................................................341

RDMA Over Converged Ethernet (RoCE) Overview................................................................................................ 341

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 342

Contents

11

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 343

Protocol Overview.........................................................................................................................................................343

Ring Status............................................................................................................................................................... 344

Multiple FRRP Rings................................................................................................................................................344

Important FRRP Points...........................................................................................................................................345

Important FRRP Concepts..................................................................................................................................... 346

Implementing FRRP.......................................................................................................................................................347

FRRP Conguration.......................................................................................................................................................347

Creating the FRRP Group.......................................................................................................................................347

Conguring the Control VLAN...............................................................................................................................348

Conguring and Adding the Member VLANs.......................................................................................................349

Setting the FRRP Timers........................................................................................................................................350

Clearing the FRRP Counters..................................................................................................................................350

Viewing the FRRP Conguration...........................................................................................................................350

Viewing the FRRP Information.............................................................................................................................. 350

Troubleshooting FRRP................................................................................................................................................... 351

Conguration Checks...............................................................................................................................................351

Sample Conguration and Topology.............................................................................................................................351

FRRP Support on VLT...................................................................................................................................................352

Example Scenario.................................................................................................................................................... 353

Important Points to Remember............................................................................................................................. 354

17 GARP VLAN Registration Protocol (GVRP)..............................................................................................355

Important Points to Remember................................................................................................................................... 355

Congure GVRP............................................................................................................................................................ 356

Related Conguration Tasks...................................................................................................................................356

Enabling GVRP Globally................................................................................................................................................ 357

Enabling GVRP on a Layer 2 Interface........................................................................................................................357

Congure GVRP Registration.......................................................................................................................................357

Congure a GARP Timer.............................................................................................................................................. 358

18 Internet Group Management Protocol (IGMP)......................................................................................... 359

IGMP Implementation Information.............................................................................................................................. 359

IGMP Protocol Overview..............................................................................................................................................359

IGMP Version 2........................................................................................................................................................359

IGMP Version 3.........................................................................................................................................................361

Congure IGMP............................................................................................................................................................. 364

Related Conguration Tasks...................................................................................................................................364

Viewing IGMP Enabled Interfaces...............................................................................................................................365

Selecting an IGMP Version...........................................................................................................................................365

Viewing IGMP Groups...................................................................................................................................................366

Adjusting Timers............................................................................................................................................................ 366

Adjusting Query and Response Timers................................................................................................................. 366

Enabling IGMP Immediate-Leave.................................................................................................................................367

IGMP Snooping..............................................................................................................................................................368

12

Contents

IGMP Snooping Implementation Information....................................................................................................... 368

Conguring IGMP Snooping...................................................................................................................................368

Removing a Group-Port Association.....................................................................................................................369

Disabling Multicast Flooding...................................................................................................................................369

Specifying a Port as Connected to a Multicast Router...................................................................................... 369

Conguring the Switch as Querier.........................................................................................................................370

Fast Convergence after MSTP Topology Changes................................................................................................... 370

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................370

Protocol Separation..................................................................................................................................................371

Enabling and Disabling Management Egress Interface Selection...................................................................... 372

Handling of Management Route Conguration....................................................................................................373

Handling of Switch-Initiated Trac........................................................................................................................373

Handling of Switch-Destined Trac......................................................................................................................374

Handling of Transit Trac (Trac Separation).....................................................................................................375

Mapping of Management Applications and Trac Type.....................................................................................375

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 376

Behavior of Various Applications for Switch-Destined Trac ...........................................................................377

Interworking of EIS With Various Applications..................................................................................................... 377

Designating a Multicast Router Interface................................................................................................................... 378

19 Interfaces................................................................................................................................................. 379

Basic Interface Conguration.......................................................................................................................................379

Advanced Interface Conguration...............................................................................................................................379

Interface Types...............................................................................................................................................................380

View Basic Interface Information.................................................................................................................................380

Resetting an Interface to its Factory Default State...................................................................................................382

Enabling a Physical Interface........................................................................................................................................383

Physical Interfaces.........................................................................................................................................................383

Conguration Task List for Physical Interfaces.................................................................................................... 383

40G to 1G Breakout Cable Adaptor....................................................................................................................... 383

Overview of Layer Modes...................................................................................................................................... 384

Conguring Layer 2 (Data Link) Mode..................................................................................................................385

Conguring Layer 2 (Interface) Mode.................................................................................................................. 385

Conguring Layer 3 (Network) Mode...................................................................................................................385

Conguring Layer 3 (Interface) Mode.................................................................................................................. 386

Automatic recovery of an Err-disabled interface....................................................................................................... 387

Conguring an automatic recovery for an Err-disabled interface......................................................................387

Egress Interface Selection (EIS)..................................................................................................................................388

Important Points to Remember............................................................................................................................. 388

Conguring EIS........................................................................................................................................................ 388

Management Interfaces................................................................................................................................................389

Conguring Management Interfaces.................................................................................................................... 389

Conguring a Management Interface on an Ethernet Port............................................................................... 390

VLAN Interfaces............................................................................................................................................................. 391

Loopback Interfaces......................................................................................................................................................392

Null Interfaces................................................................................................................................................................ 392

Contents

13

Port Channel Interfaces................................................................................................................................................ 392

Port Channel Denition and Standards.................................................................................................................393

Port Channel Benets.............................................................................................................................................393

Port Channel Implementation.................................................................................................................................393

Interfaces in Port Channels.................................................................................................................................... 394

Conguration Tasks for Port Channel Interfaces.................................................................................................394

Creating a Port Channel..........................................................................................................................................394

Adding a Physical Interface to a Port Channel.....................................................................................................395

Reassigning an Interface to a New Port Channel................................................................................................396

Conguring the Minimum Oper Up Links in a Port Channel...............................................................................397

Adding or Removing a Port Channel from a VLAN..............................................................................................397

Assigning an IP Address to a Port Channel.......................................................................................................... 398

Deleting or Disabling a Port Channel.....................................................................................................................399

Load Balancing Through Port Channels................................................................................................................399

Changing the Hash Algorithm................................................................................................................................399

Bulk Conguration......................................................................................................................................................... 400

Interface Range....................................................................................................................................................... 400

Bulk Conguration Examples.................................................................................................................................. 401

Dening Interface Range Macros................................................................................................................................ 402

Dene the Interface Range.................................................................................................................................... 403

Choosing an Interface-Range Macro.................................................................................................................... 403

Monitoring and Maintaining Interfaces....................................................................................................................... 403

Maintenance Using TDR.........................................................................................................................................404

Non Dell-Qualied Transceivers...................................................................................................................................405

Splitting 40G Ports without Reload............................................................................................................................ 405

Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 407

Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................408

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

Example Scenarios.................................................................................................................................................. 409

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................ 410

Link Dampening.............................................................................................................................................................. 410

Important Points to Remember...............................................................................................................................411

Conguration Example of Link Dampening............................................................................................................ 411

Enabling Link Dampening.........................................................................................................................................413

Link Bundle Monitoring.................................................................................................................................................. 414

Using Ethernet Pause Frames for Flow Control......................................................................................................... 415

Enabling Pause Frames............................................................................................................................................415

Congure the MTU Size on an Interface.....................................................................................................................416

Port-Pipes........................................................................................................................................................................417

Auto-Negotiation on Ethernet Interfaces....................................................................................................................417

Setting the Speed of Ethernet Interfaces............................................................................................................. 417

Set Auto-Negotiation Options................................................................................................................................ 418

View Advanced Interface Information..........................................................................................................................419

Conguring the Interface Sampling Size.............................................................................................................. 420

Dynamic Counters.......................................................................................................................................................... 421

14

Contents

Clearing Interface Counters.................................................................................................................................... 421

Compressing Conguration Files................................................................................................................................. 422

20 IPv4 Routing............................................................................................................................................426

IP Addresses................................................................................................................................................................... 427

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

Conguration Tasks for IP Addresses..........................................................................................................................427

Assigning IP Addresses to an Interface....................................................................................................................... 427

Conguring Static Routes.............................................................................................................................................428

Congure Static Routes for the Management Interface..........................................................................................429

Using the Congured Source IP Address in ICMP Messages..................................................................................430

Conguring the ICMP Source Interface............................................................................................................... 430

Conguring the Duration to Establish a TCP Connection........................................................................................ 430

Enabling Directed Broadcast......................................................................................................................................... 431

Resolution of Host Names.............................................................................................................................................431

Enabling Dynamic Resolution of Host Names.............................................................................................................431

Specifying the Local System Domain and a List of Domains................................................................................... 432

Conguring DNS with Traceroute................................................................................................................................432

ARP..................................................................................................................................................................................433

Conguration Tasks for ARP........................................................................................................................................ 433

Conguring Static ARP Entries....................................................................................................................................433

Enabling Proxy ARP.......................................................................................................................................................434

Clearing ARP Cache...................................................................................................................................................... 434

ARP Learning via Gratuitous ARP................................................................................................................................434

Enabling ARP Learning via Gratuitous ARP................................................................................................................435

ARP Learning via ARP Request................................................................................................................................... 435

Conguring ARP Retries...............................................................................................................................................436

ICMP............................................................................................................................................................................... 436

Conguration Tasks for ICMP...................................................................................................................................... 436

Enabling ICMP Unreachable Messages...................................................................................................................... 436

UDP Helper.....................................................................................................................................................................437

Congure UDP Helper.............................................................................................................................................437

Important Points to Remember..............................................................................................................................437

Enabling UDP Helper..................................................................................................................................................... 437

Congurations Using UDP Helper................................................................................................................................437

UDP Helper with Broadcast-All Addresses.................................................................................................................438

UDP Helper with Subnet Broadcast Addresses.........................................................................................................438

UDP Helper with Congured Broadcast Addresses..................................................................................................439

UDP Helper with No Congured Broadcast Addresses............................................................................................439

Troubleshooting UDP Helper........................................................................................................................................440

21 IPv6 Routing............................................................................................................................................. 441

Protocol Overview..........................................................................................................................................................441

Extended Address Space........................................................................................................................................442

Stateless Autoconguration................................................................................................................................... 442

IPv6 Headers............................................................................................................................................................442

Contents

15

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support....................................................................443

IPv6 Header Fields...................................................................................................................................................444

Extension Header Fields..........................................................................................................................................446

Addressing................................................................................................................................................................ 447

Implementing IPv6 with Dell EMC Networking OS................................................................................................... 448

ICMPv6...........................................................................................................................................................................449

Path MTU discovery..................................................................................................................................................... 450

IPv6 Neighbor Discovery..............................................................................................................................................450

IPv6 Neighbor Discovery of MTU Packets........................................................................................................... 451

Conguring the IPv6 Recursive DNS Server........................................................................................................ 451

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................452

Displaying IPv6 RDNSS Information......................................................................................................................452

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 453

Conguration Tasks for IPv6........................................................................................................................................ 453

Adjusting Your CAM-Prole....................................................................................................................................453

Assigning an IPv6 Address to an Interface...........................................................................................................454

Assigning a Static IPv6 Route................................................................................................................................455

Conguring Telnet with IPv6..................................................................................................................................455

SNMP over IPv6......................................................................................................................................................456

Displaying IPv6 Information....................................................................................................................................456

Displaying an IPv6 Interface Information.............................................................................................................. 456

Showing IPv6 Routes.............................................................................................................................................. 457

Showing the Running-Conguration for an Interface.........................................................................................458

Clearing IPv6 Routes...............................................................................................................................................459

Disabling ND Entry Timeout................................................................................................................................... 459

Conguring IPv6 RA Guard.......................................................................................................................................... 459

Conguring IPv6 RA Guard on an Interface..........................................................................................................461

Monitoring IPv6 RA Guard......................................................................................................................................462

22 iSCSI Optimization...................................................................................................................................463

iSCSI Optimization Overview....................................................................................................................................... 463

Monitoring iSCSI Trac Flows...............................................................................................................................465

Application of Quality of Service to iSCSI Trac Flows..................................................................................... 465

Information Monitored in iSCSI Trac Flows.......................................................................................................465

Detection and Auto-Conguration for Dell EqualLogic Arrays...........................................................................466

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................466

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer................................................................. 467

Enable and Disable iSCSI Optimization................................................................................................................. 467

Default iSCSI Optimization Values...............................................................................................................................468

iSCSI Optimization Prerequisites................................................................................................................................. 468

Conguring iSCSI Optimization................................................................................................................................... 468

Displaying iSCSI Optimization Information..................................................................................................................470

23 Intermediate System to Intermediate System...........................................................................................472

IS-IS Protocol Overview................................................................................................................................................472

IS-IS Addressing.............................................................................................................................................................472

16

Contents

Multi-Topology IS-IS.......................................................................................................................................................473

Transition Mode........................................................................................................................................................473

Interface Support.....................................................................................................................................................474

Adjacencies............................................................................................................................................................... 474

Graceful Restart.............................................................................................................................................................474

Timers........................................................................................................................................................................474

Implementation Information..........................................................................................................................................474

Conguration Information.............................................................................................................................................475

Conguration Tasks for IS-IS..................................................................................................................................476

Conguring the Distance of a Route.....................................................................................................................483

Changing the IS-Type.............................................................................................................................................. 484

Redistributing IPv4 Routes.....................................................................................................................................486

Redistributing IPv6 Routes..................................................................................................................................... 487

Conguring Authentication Passwords.................................................................................................................488

Setting the Overload Bit......................................................................................................................................... 488

Debugging IS-IS....................................................................................................................................................... 489

IS-IS Metric Styles.........................................................................................................................................................490

Congure Metric Values............................................................................................................................................... 490

Maximum Values in the Routing Table.................................................................................................................. 490

Change the IS-IS Metric Style in One Level Only................................................................................................490

Leaks from One Level to Another..........................................................................................................................492

Sample Congurations.................................................................................................................................................. 493

24 Link Aggregation Control Protocol (LACP).............................................................................................. 495

Introduction to Dynamic LAGs and LACP.................................................................................................................. 495

Important Points to Remember............................................................................................................................. 495

LACP Modes............................................................................................................................................................ 496

Conguring LACP Commands...............................................................................................................................496

LACP Conguration Tasks............................................................................................................................................ 497

Creating a LAG.........................................................................................................................................................497

Conguring the LAG Interfaces as Dynamic........................................................................................................ 497

Setting the LACP Long Timeout............................................................................................................................498

Monitoring and Debugging LACP..........................................................................................................................498

Shared LAG State Tracking.......................................................................................................................................... 499

Conguring Shared LAG State Tracking...............................................................................................................499

Important Points about Shared LAG State Tracking............................................................................................501

LACP Basic Conguration Example............................................................................................................................. 501

Congure a LAG on ALPHA....................................................................................................................................501

25 Layer 2..................................................................................................................................................... 510

Manage the MAC Address Table..................................................................................................................................510

Clearing the MAC Address Table............................................................................................................................510

Setting the Aging Time for Dynamic Entries.........................................................................................................510

Conguring a Static MAC Address......................................................................................................................... 511

Displaying the MAC Address Table..........................................................................................................................511

MAC Learning Limit.........................................................................................................................................................511

Contents

17

Setting the MAC Learning Limit............................................................................................................................. 512

mac learning-limit Dynamic..................................................................................................................................... 512

mac learning-limit mac-address-sticky.................................................................................................................. 512

mac learning-limit station-move............................................................................................................................. 513

mac learning-limit no-station-move....................................................................................................................... 513

Learning Limit Violation Actions..............................................................................................................................513

Setting Station Move Violation Actions................................................................................................................. 514

Recovering from Learning Limit and Station Move Violations............................................................................514

Disabling MAC Address Learning on the System................................................................................................. 515

NIC Teaming....................................................................................................................................................................515

Congure Redundant Pairs........................................................................................................................................... 516

Important Points about Conguring Redundant Pairs.........................................................................................518

Far-End Failure Detection..............................................................................................................................................519

FEFD State Changes...............................................................................................................................................520

Conguring FEFD.....................................................................................................................................................521

Enabling FEFD on an Interface............................................................................................................................... 521

Debugging FEFD......................................................................................................................................................522

26 Link Layer Discovery Protocol (LLDP)..................................................................................................... 524

802.1AB (LLDP) Overview............................................................................................................................................524

Protocol Data Units................................................................................................................................................. 524

Optional TLVs.................................................................................................................................................................525

Management TLVs.................................................................................................................................................. 525

TIA-1057 (LLDP-MED) Overview.................................................................................................................................527

TIA Organizationally Specic TLVs........................................................................................................................ 527

Congure LLDP.............................................................................................................................................................. 531

Related Conguration Tasks....................................................................................................................................531

Important Points to Remember.............................................................................................................................. 531

LLDP Compatibility..................................................................................................................................................532

CONFIGURATION versus INTERFACE Congurations............................................................................................ 532

Enabling LLDP................................................................................................................................................................532

Disabling and Undoing LLDP.................................................................................................................................. 533

Enabling LLDP on Management Ports........................................................................................................................533

Disabling and Undoing LLDP on Management Ports.......................................................................................... 533

Advertising TLVs............................................................................................................................................................ 533

Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................535

Reserved Unrecognized LLDP TLVs..................................................................................................................... 535

Organizational Specic Unrecognized LLDP TLVs..............................................................................................535

Viewing Unrecognized LLDP TLVs........................................................................................................................535

Viewing the LLDP Conguration................................................................................................................................. 536

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................536

Examples of Viewing Information Advertised by Neighbors.............................................................................. 536

Conguring LLDPDU Intervals.....................................................................................................................................538

Conguring LLDP Notication Interval....................................................................................................................... 539

Conguring Transmit and Receive Mode....................................................................................................................539

Conguring the Time to Live Value............................................................................................................................. 540

18

Contents

Debugging LLDP............................................................................................................................................................540

Relevant Management Objects................................................................................................................................... 542

27 Microsoft Network Load Balancing.......................................................................................................... 547

NLB Unicast Mode Scenario........................................................................................................................................ 547

NLB Multicast Mode Scenario..................................................................................................................................... 547

Limitations of the NLB Feature....................................................................................................................................548

Microsoft Clustering......................................................................................................................................................548

Enable and Disable VLAN Flooding ............................................................................................................................ 548

Conguring a Switch for NLB .....................................................................................................................................548

Enabling a Switch for Multicast NLB.................................................................................................................... 549

28 Multicast Source Discovery Protocol (MSDP).........................................................................................550

Protocol Overview.........................................................................................................................................................550

Anycast RP......................................................................................................................................................................551

Implementation Information......................................................................................................................................... 552

Congure Multicast Source Discovery Protocol........................................................................................................552

Related Conguration Tasks...................................................................................................................................552

Enable MSDP.................................................................................................................................................................556

Manage the Source-Active Cache.............................................................................................................................. 557

Viewing the Source-Active Cache.........................................................................................................................557

Limiting the Source-Active Cache.........................................................................................................................557

Clearing the Source-Active Cache........................................................................................................................558

Enabling the Rejected Source-Active Cache....................................................................................................... 558

Accept Source-Active Messages that Fail the RFP Check..................................................................................... 558

Specifying Source-Active Messages........................................................................................................................... 561

Limiting the Source-Active Messages from a Peer...................................................................................................562

Preventing MSDP from Caching a Local Source.......................................................................................................562

Preventing MSDP from Caching a Remote Source.................................................................................................. 563

Preventing MSDP from Advertising a Local Source................................................................................................. 563

Logging Changes in Peership States...........................................................................................................................564

Terminating a Peership..................................................................................................................................................564

Clearing Peer Statistics.................................................................................................................................................565

Debugging MSDP..........................................................................................................................................................565

MSDP with Anycast RP................................................................................................................................................566

Conguring Anycast RP................................................................................................................................................567

Reducing Source-Active Message Flooding........................................................................................................ 568

Specifying the RP Address Used in SA Messages..............................................................................................568

MSDP Sample Congurations......................................................................................................................................570

33 Multicast Listener Discovery Protocol......................................................................................................573

MLD Version 1.................................................................................................................................................................573

MLD Querier Router...................................................................................................................................................... 573

Joining a Multicast Group............................................................................................................................................. 574

Leaving a Multicast Group............................................................................................................................................ 574

MLD version 2................................................................................................................................................................ 574

Contents

19

MLD timers.....................................................................................................................................................................576

Reducing Host Response Burstiness.....................................................................................................................577

Clearing MLD groups.....................................................................................................................................................577

Debugging MLD............................................................................................................................................................. 577

Explicit Tracking..............................................................................................................................................................577

Reducing Leave Latency............................................................................................................................................... 577

Displaying MLD groups table........................................................................................................................................ 578

Displaying MLD Interfaces............................................................................................................................................ 578

30 Multiple Spanning Tree Protocol (MSTP).................................................................................................579

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

Spanning Tree Variations.............................................................................................................................................. 580

Implementation Information................................................................................................................................... 580

Congure Multiple Spanning Tree Protocol................................................................................................................580

Related Conguration Tasks....................................................................................................................................581

Enable Multiple Spanning Tree Globally....................................................................................................................... 581

Adding and Removing Interfaces..................................................................................................................................581

Creating Multiple Spanning Tree Instances................................................................................................................ 582

Inuencing MSTP Root Selection................................................................................................................................583

Interoperate with Non-Dell Bridges.............................................................................................................................584

Changing the Region Name or Revision..................................................................................................................... 584

Modifying Global Parameters.......................................................................................................................................584

Modifying the Interface Parameters........................................................................................................................... 586

Conguring an EdgePort.............................................................................................................................................. 587

Flush MAC Addresses after a Topology Change........................................................................................................587

MSTP Sample Congurations......................................................................................................................................588

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

CongurationSFTOS Example Running-Conguration.......................................................................................588

Debugging and Verifying MSTP Congurations........................................................................................................ 592

31 Multicast Features....................................................................................................................................594

Enabling IP Multicast.....................................................................................................................................................594

Implementation Information..........................................................................................................................................594

Multicast Policies...........................................................................................................................................................595

IPv4 Multicast Policies............................................................................................................................................595

Understanding Multicast Traceroute (mtrace).......................................................................................................... 602

Important Points to Remember............................................................................................................................. 603

Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 603

Supported Error Codes.................................................................................................................................................604

mtrace Scenarios...........................................................................................................................................................605

33 Multicast Listener Discovery Protocol.......................................................................................................611

MLD Version 1..................................................................................................................................................................611

MLD Querier Router....................................................................................................................................................... 611

Joining a Multicast Group..............................................................................................................................................612

Leaving a Multicast Group.............................................................................................................................................612

20

Contents

Dell PowerSwitch S6000 ON User guide

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