Dell PowerSwitch S6100-ON User guide

Dell Conguration Guide for the S6100–ON

System

9.10(0.2)

Notes, cautions, and warnings

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

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

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

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2017 - 03

Rev. A00

Contents

1 About this Guide...........................................................................................................................................32

Audience............................................................................................................................................................................32

Conventions......................................................................................................................................................................32

Related Documents......................................................................................................................................................... 32

2 Conguration Fundamentals........................................................................................................................ 33

Accessing the Command Line........................................................................................................................................33

CLI Modes.........................................................................................................................................................................33

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

The do Command............................................................................................................................................................ 38

Undoing Commands........................................................................................................................................................ 38

Obtaining Help..................................................................................................................................................................39

Entering and Editing Commands....................................................................................................................................39

Command History............................................................................................................................................................40

Filtering show Command Outputs.................................................................................................................................40

Example of the grep Keyword...................................................................................................................................41

Multiple Users in Conguration Mode............................................................................................................................41

3 Getting Started............................................................................................................................................43

Console Access................................................................................................................................................................ 44

Serial Console............................................................................................................................................................. 44

Micro USB-B Access.................................................................................................................................................45

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

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

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

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

Congure the Management Port IP Address......................................................................................................... 46

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

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

Conguring the Enable Password.................................................................................................................................. 47

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

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

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

Save the Running-Conguration............................................................................................................................. 50

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

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

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

View Command History.................................................................................................................................................. 52

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

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

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

Contents

3

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

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

Creating a Custom Privilege Level...........................................................................................................................56

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Conguration Task List for File Transfer Services...................................................................................................71

Enabling the FTP Server............................................................................................................................................71

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

Conguring FTP Client Parameters......................................................................................................................... 72

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

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

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

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

Using Telnet to get to Another Network Device..........................................................................................................75

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

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

Restoring the Factory Default Settings.........................................................................................................................77

Important Points to Remember................................................................................................................................ 77

4

Contents

Restoring Factory Default Environment Variables..................................................................................................77

Reloading the system...................................................................................................................................................... 79

5 802.1X......................................................................................................................................................... 80

Port-Authentication Process..........................................................................................................................................82

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

Conguring 802.1X...........................................................................................................................................................83

Related Conguration Tasks..................................................................................................................................... 83

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

Enabling 802.1X................................................................................................................................................................ 84

Conguring dot1x Prole ................................................................................................................................................85

Conguring MAC addresses for a do1x Prole.............................................................................................................86

Conguring the Static MAB and MAB Prole .............................................................................................................86

Conguring Critical VLAN ..............................................................................................................................................87

Conguring Request Identity Re-Transmissions...........................................................................................................88

Conguring a Quiet Period after a Failed Authentication..................................................................................... 88

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

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

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

Conguring Dynamic VLAN Assignment with Port Authentication...........................................................................92

Guest and Authentication-Fail VLANs.......................................................................................................................... 93

Conguring a Guest VLAN....................................................................................................................................... 93

Conguring an Authentication-Fail VLAN...............................................................................................................93

Conguring Timeouts................................................................................................................................................94

Multi-Host Authentication.............................................................................................................................................. 95

Conguring Multi-Host AuthenticationConguring Single-Host Authentication............................................... 97

Multi-Supplicant Authentication.................................................................................................................................... 98

Conguring Multi-Supplicant AuthenticationRestricting Multi-Supplicant Authentication..............................98

MAC Authentication Bypass...........................................................................................................................................99

MAB in Single-host and Multi-Host Mode............................................................................................................100

MAB in Multi-Supplicant Authentication Mode....................................................................................................100

Conguring MAC Authentication Bypass..............................................................................................................100

Dynamic CoS with 802.1X.............................................................................................................................................. 101

6 Access Control Lists (ACLs)....................................................................................................................... 103

IP Access Control Lists (ACLs).....................................................................................................................................104

CAM Usage...............................................................................................................................................................104

Implementing ACLs on Dell Networking OS..........................................................................................................105

Important Points to Remember.................................................................................................................................... 107

Conguration Task List for Route Maps................................................................................................................ 107

Conguring Match Routes...................................................................................................................................... 109

Conguring Set Conditions......................................................................................................................................110

Congure a Route Map for Route Redistribution.................................................................................................. 111

Congure a Route Map for Route Tagging............................................................................................................ 112

Continue Clause........................................................................................................................................................ 112

IP Fragment Handling..................................................................................................................................................... 113

Contents

5

IP Fragments ACL Examples....................................................................................................................................113

Layer 4 ACL Rules Examples................................................................................................................................... 113

Congure a Standard IP ACL.........................................................................................................................................114

Conguring a Standard IP ACL Filter......................................................................................................................115

Congure an Extended IP ACL......................................................................................................................................116

Conguring Filters with a Sequence Number........................................................................................................116

Conguring Filters Without a Sequence Number..................................................................................................117

Congure Layer 2 and Layer 3 ACLs............................................................................................................................ 118

Assign an IP ACL to an Interface...................................................................................................................................118

Applying an IP ACL..........................................................................................................................................................119

Counting ACL Hits.................................................................................................................................................... 119

Congure Ingress ACLs................................................................................................................................................. 120

Congure Egress ACLs..................................................................................................................................................120

Applying Egress Layer 3 ACLs (Control-Plane)..................................................................................................... 121

IP Prex Lists.................................................................................................................................................................. 122

Implementation Information.................................................................................................................................... 122

Conguration Task List for Prex Lists.................................................................................................................. 122

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

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

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

Implementation Information.................................................................................................................................... 128

Flow-Based Monitoring Support for ACLs.................................................................................................................. 128

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

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

7 Bidirectional Forwarding Detection (BFD)................................................................................................... 131

How BFD Works.............................................................................................................................................................. 131

BFD Packet Format..................................................................................................................................................132

BFD Sessions............................................................................................................................................................ 133

BFD Three-Way Handshake.................................................................................................................................... 134

Session State Changes............................................................................................................................................136

Important Points to Remember.................................................................................................................................... 136

Congure BFD................................................................................................................................................................ 136

Congure BFD for Physical Ports...........................................................................................................................137

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

Congure BFD for OSPF.........................................................................................................................................142

Congure BFD for OSPFv3.....................................................................................................................................147

Congure BFD for IS-IS...........................................................................................................................................149

Congure BFD for BGP............................................................................................................................................151

Congure BFD for VRRP.........................................................................................................................................158

Conguring Protocol Liveness.................................................................................................................................161

Troubleshooting BFD.................................................................................................................................................161

8 Border Gateway Protocol IPv4 (BGPv4).....................................................................................................163

Autonomous Systems (AS)........................................................................................................................................... 163

Sessions and Peers........................................................................................................................................................ 165

6

Contents

Establish a Session...................................................................................................................................................165

Route Reectors.............................................................................................................................................................166

BGP Attributes................................................................................................................................................................167

Best Path Selection Criteria.................................................................................................................................... 167

Weight........................................................................................................................................................................169

Local Preference.......................................................................................................................................................169

Multi-Exit Discriminators (MEDs)...........................................................................................................................170

Origin...........................................................................................................................................................................171

AS Path...................................................................................................................................................................... 172

Next Hop................................................................................................................................................................... 172

Multiprotocol BGP.......................................................................................................................................................... 172

Implement BGP with Dell Networking OS...................................................................................................................173

Additional Path (Add-Path) Support......................................................................................................................173

Advertise IGP Cost as MED for Redistributed Routes.........................................................................................173

Ignore Router-ID in Best-Path Calculation.............................................................................................................174

Four-Byte AS Numbers............................................................................................................................................174

AS4 Number Representation...................................................................................................................................174

AS Number Migration...............................................................................................................................................176

BGP4 Management Information Base (MIB)........................................................................................................ 177

Important Points to Remember...............................................................................................................................177

Conguration Information..............................................................................................................................................178

BGP Conguration..........................................................................................................................................................178

Enabling BGP............................................................................................................................................................ 179

Conguring AS4 Number Representations........................................................................................................... 182

Conguring Peer Groups......................................................................................................................................... 184

Conguring BGP Fast Fall-Over.............................................................................................................................186

Conguring Passive Peering................................................................................................................................... 188

Maintaining Existing AS Numbers During an AS Migration................................................................................. 188

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 189

Enabling Graceful Restart....................................................................................................................................... 190

Enabling Neighbor Graceful Restart....................................................................................................................... 191

Filtering on an AS-Path Attribute............................................................................................................................191

Regular Expressions as Filters.................................................................................................................................193

Redistributing Routes...............................................................................................................................................194

Enabling Additional Paths........................................................................................................................................ 195

Conguring IP Community Lists.............................................................................................................................195

Conguring an IP Extended Community List........................................................................................................196

Filtering Routes with Community Lists.................................................................................................................. 197

Manipulating the COMMUNITY Attribute.............................................................................................................198

Changing MED Attributes....................................................................................................................................... 199

Changing the LOCAL_PREFERENCE Attribute.................................................................................................. 199

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............ 200

Changing the WEIGHT Attribute............................................................................................................................201

Enabling Multipath....................................................................................................................................................201

Filtering BGP Routes................................................................................................................................................201

Contents

7

Filtering BGP Routes Using Route Maps..............................................................................................................203

Filtering BGP Routes Using AS-PATH Information..............................................................................................203

Conguring BGP Route Reectors........................................................................................................................204

Aggregating Routes.................................................................................................................................................205

Conguring BGP Confederations.......................................................................................................................... 205

Enabling Route Flap Dampening............................................................................................................................ 206

Changing BGP Timers.............................................................................................................................................208

Enabling BGP Neighbor Soft-Reconguration.....................................................................................................208

Route Map Continue............................................................................................................................................... 209

Enabling MBGP Congurations.................................................................................................................................... 210

BGP Regular Expression Optimization..........................................................................................................................211

Debugging BGP...............................................................................................................................................................211

Storing Last and Bad PDUs.....................................................................................................................................212

Capturing PDUs........................................................................................................................................................213

PDU Counters...........................................................................................................................................................214

Sample Congurations...................................................................................................................................................214

9 Content Addressable Memory (CAM).........................................................................................................221

CAM Allocation............................................................................................................................................................... 221

Test CAM Usage............................................................................................................................................................ 223

View CAM-ACL Settings.............................................................................................................................................. 223

View CAM Usage...........................................................................................................................................................224

CAM Optimization......................................................................................................................................................... 225

Troubleshoot CAM Proling..........................................................................................................................................225

QoS CAM Region Limitation...................................................................................................................................225

Syslog Error When the Table is Full....................................................................................................................... 225

Syslog Warning Upon 90 Percent Utilization of CAM.........................................................................................226

Syslog Warning for Discrepancies Between Congured Extended Prexes....................................................226

Unied Forwarding Table (UFT) Modes......................................................................................................................226

Conguring UFT Modes..........................................................................................................................................226

10 Control Plane Policing (CoPP)................................................................................................................. 228

Congure Control Plane Policing................................................................................................................................. 229

Conguring CoPP for Protocols............................................................................................................................ 230

Conguring CoPP for CPU Queues...................................................................................................................... 232

Displaying CoPP Conguration ............................................................................................................................. 233

11 Data Center Bridging (DCB)......................................................................................................................235

Ethernet Enhancements in Data Center Bridging..................................................................................................... 235

Priority-Based Flow Control................................................................................................................................... 236

Enhanced Transmission Selection..........................................................................................................................237

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................238

Data Center Bridging in a Trac Flow...................................................................................................................239

Enabling Data Center Bridging..................................................................................................................................... 239

DCB Maps and its Attributes..................................................................................................................................240

Data Center Bridging: Default Conguration..............................................................................................................240

8

Contents

Conguring Priority-Based Flow Control.....................................................................................................................241

Conguring Lossless Queues................................................................................................................................. 242

Conguring PFC in a DCB Map................................................................................................................................... 243

PFC Conguration Notes........................................................................................................................................243

PFC Prerequisites and Restrictions....................................................................................................................... 244

Applying a DCB Map on a Port.................................................................................................................................... 244

Conguring PFC without a DCB Map.........................................................................................................................245

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

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

Buer Sizes for Lossless or PFC Packets.............................................................................................................246

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

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

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

Conguration Example for DSCP and PFC Priorities................................................................................................248

Using PFC to Manage Converged Ethernet Trac...................................................................................................249

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

QoS dot1p Trac Classication and Queue Assignment..........................................................................................268

Conguring the Dynamic Buer Method................................................................................................................... 268

Sample DCB Conguration...........................................................................................................................................269

PFC and ETS Conguration Command Examples................................................................................................271

12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 272

DHCP Packet Format and Options..............................................................................................................................272

Assign an IP Address using DHCP............................................................................................................................... 274

Implementation Information..........................................................................................................................................275

Congure the System to be a DHCP Server..............................................................................................................275

Conguring the Server for Automatic Address Allocation..................................................................................276

Specifying a Default Gateway.................................................................................................................................277

Contents

9

Congure a Method of Hostname Resolution......................................................................................................277

Using DNS for Address Resolution........................................................................................................................ 277

Using NetBIOS WINS for Address Resolution......................................................................................................278

Creating Manual Binding Entries............................................................................................................................278

Debugging the DHCP Server................................................................................................................................. 278

Using DHCP Clear Commands...............................................................................................................................279

Congure the System to be a DHCP Client............................................................................................................... 279

Conguring the DHCP Client System................................................................................................................... 279

DHCP Client on a Management Interface.............................................................................................................281

DHCP Client Operation with Other Features........................................................................................................281

Congure the System for User Port Stacking (Option 230)....................................................................................282

Congure Secure DHCP............................................................................................................................................... 282

Option 82..................................................................................................................................................................283

DHCP Snooping.......................................................................................................................................................283

Drop DHCP Packets on Snooped VLANs Only....................................................................................................286

Dynamic ARP Inspection.........................................................................................................................................287

Conguring Dynamic ARP Inspection................................................................................................................... 288

Source Address Validation............................................................................................................................................ 289

Enabling IP Source Address Validation..................................................................................................................289

DHCP MAC Source Address Validation................................................................................................................ 290

Enabling IP+MAC Source Address Validation.......................................................................................................290

Viewing the Number of SAV Dropped Packets.................................................................................................... 291

Clearing the Number of SAV Dropped Packets....................................................................................................291

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 292

ECMP for Flow-Based Anity.....................................................................................................................................292

Conguring the Hash Algorithm Seed.................................................................................................................. 292

Link Bundle Monitoring................................................................................................................................................. 292

Managing ECMP Group Paths...............................................................................................................................293

Creating an ECMP Group Bundle.......................................................................................................................... 293

Modifying the ECMP Group Threshold.................................................................................................................294

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................294

Support for ECMP in host table............................................................................................................................ 295

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................295

RTAG7.......................................................................................................................................................................295

Flow-based Hashing for ECMP............................................................................................................................. 296

14 FIP Snooping............................................................................................................................................300

Fibre Channel over Ethernet........................................................................................................................................300

Ensure Robustness in a Converged Ethernet Network............................................................................................300

FIP Snooping on Ethernet Bridges.............................................................................................................................. 302

Using FIP Snooping....................................................................................................................................................... 304

FIP Snooping Prerequisites.....................................................................................................................................304

Important Points to Remember............................................................................................................................. 304

Enabling the FCoE Transit Feature........................................................................................................................305

Enable FIP Snooping on VLANs.............................................................................................................................306

10

Contents

Congure the FC-MAP Value................................................................................................................................ 306

Congure a Port for a Bridge-to-Bridge Link.......................................................................................................306

Congure a Port for a Bridge-to-FCF Link...........................................................................................................306

Impact on Other Software Features......................................................................................................................307

FIP Snooping Restrictions.......................................................................................................................................307

Conguring FIP Snooping.......................................................................................................................................307

Displaying FIP Snooping Information...........................................................................................................................308

FCoE Transit Conguration Example........................................................................................................................... 313

15 Flex Hash and Optimized Boot-Up............................................................................................................ 315

Flex Hash Capability Overview..................................................................................................................................... 315

Conguring the Flex Hash Mechanism........................................................................................................................315

Conguring Fast Boot and LACP Fast Switchover....................................................................................................316

Optimizing the Boot Time............................................................................................................................................. 316

Booting Process When Optimized Boot Time Mechanism is Enabled...............................................................316

Guidelines for Conguring Optimized Booting Mechanism.................................................................................317

Interoperation of Applications with Fast Boot and System States...........................................................................318

LACP and IPv4 Routing...........................................................................................................................................318

LACP and IPv6 Routing...........................................................................................................................................318

BGP Graceful Restart.............................................................................................................................................. 319

Cold Boot Caused by Power Cycling the System................................................................................................ 319

Unexpected Reload of the System........................................................................................................................ 319

Software Upgrade.................................................................................................................................................... 319

LACP Fast Switchover.............................................................................................................................................319

Changes to BGP Multipath.................................................................................................................................... 320

Delayed Installation of ECMP Routes Into BGP...................................................................................................320

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 320

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces.......................................................................................321

16 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 322

Protocol Overview......................................................................................................................................................... 322

Ring Status............................................................................................................................................................... 323

Multiple FRRP Rings................................................................................................................................................323

Important FRRP Points........................................................................................................................................... 324

Important FRRP Concepts..................................................................................................................................... 325

Implementing FRRP.......................................................................................................................................................326

FRRP Conguration.......................................................................................................................................................326

Creating the FRRP Group.......................................................................................................................................326

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

Conguring and Adding the Member VLANs.......................................................................................................328

Setting the FRRP Timers........................................................................................................................................329

Clearing the FRRP Counters..................................................................................................................................329

Viewing the FRRP Conguration...........................................................................................................................329

Viewing the FRRP Information...............................................................................................................................329

Troubleshooting FRRP.................................................................................................................................................. 330

Conguration Checks..............................................................................................................................................330

Contents

11

Sample Conguration and Topology............................................................................................................................330

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

12

Contents

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Important Points to Remember............................................................................................................................. 362

Conguring EIS........................................................................................................................................................ 362

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

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

Conguring a Management Interface on an Ethernet Port................................................................................364

VLAN Interfaces............................................................................................................................................................ 365

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

Null Interfaces................................................................................................................................................................ 366

Port Channel Interfaces................................................................................................................................................366

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

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

Port Channel Implementation.................................................................................................................................367

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

Conguration Tasks for Port Channel Interfaces.................................................................................................368

Creating a Port Channel......................................................................................................................................... 368

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

Reassigning an Interface to a New Port Channel................................................................................................ 370

Conguring the Minimum Oper Up Links in a Port Channel............................................................................... 371

Adding or Removing a Port Channel from a VLAN.............................................................................................. 371

Assigning an IP Address to a Port Channel...........................................................................................................372

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

Load Balancing Through Port Channels................................................................................................................373

Load-Balancing Method.......................................................................................................................................... 373

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

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

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

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

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

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

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

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

Contents

13

Split 40G Ports on a 16X40G QSFP+ Module............................................................................................................379

Splitting 100G Ports...................................................................................................................................................... 380

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

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

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

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

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

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

Congure the MTU Size on an Interface....................................................................................................................384

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

CR4 Auto-Negotiation.................................................................................................................................................. 385

FEC Conguration......................................................................................................................................................... 386

Setting the Speed of Ethernet Interfaces...................................................................................................................387

Adjusting the Keepalive Timer......................................................................................................................................389

View Advanced Interface Information.........................................................................................................................389

Conguring the Interface Sampling Size.............................................................................................................. 390

Dynamic Counters.......................................................................................................................................................... 391

Clearing Interface Counters.................................................................................................................................... 391

Enhanced Validation of Interface Ranges...................................................................................................................392

Compressing Conguration Files................................................................................................................................. 392

20 IPv4 Routing............................................................................................................................................396

IP Addresses................................................................................................................................................................... 397

Implementation Information....................................................................................................................................397

Conguration Tasks for IP Addresses..........................................................................................................................397

Assigning IP Addresses to an Interface.......................................................................................................................397

Conguring Static Routes............................................................................................................................................ 398

Congure Static Routes for the Management Interface..........................................................................................399

Using the Congured Source IP Address in ICMP Messages..................................................................................400

Conguring the ICMP Source Interface............................................................................................................... 400

Conguring the Duration to Establish a TCP Connection........................................................................................ 400

Enabling Directed Broadcast.........................................................................................................................................401

Resolution of Host Names............................................................................................................................................ 401

Enabling Dynamic Resolution of Host Names.............................................................................................................401

Specifying the Local System Domain and a List of Domains................................................................................... 402

Conguring DNS with Traceroute................................................................................................................................402

ARP................................................................................................................................................................................. 403

Conguration Tasks for ARP........................................................................................................................................ 403

Conguring Static ARP Entries....................................................................................................................................403

Enabling Proxy ARP.......................................................................................................................................................404

Clearing ARP Cache......................................................................................................................................................404

ARP Learning via Gratuitous ARP............................................................................................................................... 404

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

ARP Learning via ARP Request................................................................................................................................... 405

Conguring ARP Retries...............................................................................................................................................406

ICMP............................................................................................................................................................................... 406

14

Contents

Conguration Tasks for ICMP...................................................................................................................................... 406

Enabling ICMP Unreachable Messages...................................................................................................................... 406

UDP Helper.....................................................................................................................................................................407

Congure UDP Helper.............................................................................................................................................407

Important Points to Remember..............................................................................................................................407

Enabling UDP Helper..................................................................................................................................................... 407

Conguring a Broadcast Address................................................................................................................................ 407

Congurations Using UDP Helper............................................................................................................................... 408

UDP Helper with Broadcast-All Addresses.................................................................................................................408

UDP Helper with Subnet Broadcast Addresses.........................................................................................................409

UDP Helper with Congured Broadcast Addresses..................................................................................................409

UDP Helper with No Congured Broadcast Addresses............................................................................................ 410

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

21 IPv6 Routing..............................................................................................................................................411

Protocol Overview...........................................................................................................................................................411

Extended Address Space.........................................................................................................................................412

Stateless Autoconguration.................................................................................................................................... 412

IPv6 Headers.............................................................................................................................................................412

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support.................................................................... 413

IPv6 Header Fields................................................................................................................................................... 414

Extension Header Fields.......................................................................................................................................... 416

Addressing................................................................................................................................................................. 417

Implementing IPv6 with Dell Networking OS..............................................................................................................418

ICMPv6............................................................................................................................................................................418

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

IPv6 Neighbor Discovery...............................................................................................................................................419

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

Conguring the IPv6 Recursive DNS Server........................................................................................................419

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

Displaying IPv6 RDNSS Information.......................................................................................................................421

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

Conguration Tasks for IPv6........................................................................................................................................ 422

Adjusting Your CAM-Prole....................................................................................................................................422

Assigning an IPv6 Address to an Interface........................................................................................................... 423

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

Conguring Telnet with IPv6.................................................................................................................................. 424

SNMP over IPv6......................................................................................................................................................424

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

Displaying an IPv6 Interface Information.............................................................................................................. 425

Showing IPv6 Routes..............................................................................................................................................426

Showing the Running-Conguration for an Interface......................................................................................... 427

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

Conguring IPv6 RA Guard.......................................................................................................................................... 428

Conguring IPv6 RA Guard on an Interface.........................................................................................................429

Monitoring IPv6 RA Guard..................................................................................................................................... 430

Contents

15

22 iSCSI Optimization................................................................................................................................... 431

iSCSI Optimization Overview........................................................................................................................................431

Monitoring iSCSI Trac Flows...............................................................................................................................433

Application of Quality of Service to iSCSI Trac Flows......................................................................................433

Information Monitored in iSCSI Trac Flows....................................................................................................... 433

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 434

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................434

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................435

Enable and Disable iSCSI Optimization................................................................................................................. 435

Default iSCSI Optimization Values...............................................................................................................................436

iSCSI Optimization Prerequisites................................................................................................................................. 436

Conguring iSCSI Optimization....................................................................................................................................436

Displaying iSCSI Optimization Information..................................................................................................................438

23 Intermediate System to Intermediate System.......................................................................................... 440

IS-IS Protocol Overview............................................................................................................................................... 440

IS-IS Addressing.............................................................................................................................................................440

Multi-Topology IS-IS....................................................................................................................................................... 441

Transition Mode........................................................................................................................................................ 441

Interface Support.....................................................................................................................................................442

Adjacencies...............................................................................................................................................................442

Graceful Restart.............................................................................................................................................................442

Timers........................................................................................................................................................................442

Implementation Information..........................................................................................................................................442

Conguration Information.............................................................................................................................................443

Conguration Tasks for IS-IS..................................................................................................................................444

Conguring the Distance of a Route......................................................................................................................451

Changing the IS-Type.............................................................................................................................................. 452

Redistributing IPv4 Routes.....................................................................................................................................454

Redistributing IPv6 Routes.....................................................................................................................................455

Conguring Authentication Passwords.................................................................................................................456

Setting the Overload Bit......................................................................................................................................... 456

Debugging IS-IS....................................................................................................................................................... 457

IS-IS Metric Styles.........................................................................................................................................................458

Congure Metric Values............................................................................................................................................... 458

Maximum Values in the Routing Table.................................................................................................................. 459

Change the IS-IS Metric Style in One Level Only................................................................................................459

Leaks from One Level to Another..........................................................................................................................460

Sample Congurations...................................................................................................................................................461

24 Link Aggregation Control Protocol (LACP).............................................................................................. 464

Introduction to Dynamic LAGs and LACP.................................................................................................................. 464

Important Points to Remember............................................................................................................................. 464

LACP Modes............................................................................................................................................................ 465

Conguring LACP Commands...............................................................................................................................465

16

Contents

LACP Conguration Tasks............................................................................................................................................466

Creating a LAG.........................................................................................................................................................466

Conguring the LAG Interfaces as Dynamic........................................................................................................466

Setting the LACP Long Timeout............................................................................................................................467

Monitoring and Debugging LACP.......................................................................................................................... 467

Shared LAG State Tracking.......................................................................................................................................... 468

Conguring Shared LAG State Tracking...............................................................................................................468

Important Points about Shared LAG State Tracking........................................................................................... 470

LACP Basic Conguration Example.............................................................................................................................470

Congure a LAG on ALPHA................................................................................................................................... 470

25 Layer 2.....................................................................................................................................................479

Manage the MAC Address Table................................................................................................................................. 479

Clearing the MAC Address Table........................................................................................................................... 479

Setting the Aging Time for Dynamic Entries........................................................................................................ 479

Conguring a Static MAC Address........................................................................................................................480

Displaying the MAC Address Table........................................................................................................................ 480

MAC Learning Limit.......................................................................................................................................................480

Setting the MAC Learning Limit............................................................................................................................. 481

mac learning-limit Dynamic..................................................................................................................................... 481

mac learning-limit mac-address-sticky.................................................................................................................. 481

mac learning-limit station-move.............................................................................................................................482

mac learning-limit no-station-move.......................................................................................................................482

Learning Limit Violation Actions............................................................................................................................. 482

Setting Station Move Violation Actions................................................................................................................ 483

Recovering from Learning Limit and Station Move Violations........................................................................... 483

Disabling MAC Address Learning on the System.................................................................................................484

NIC Teaming................................................................................................................................................................... 484

Congure Redundant Pairs...........................................................................................................................................485

Important Points about Conguring Redundant Pairs.........................................................................................487

Far-End Failure Detection............................................................................................................................................. 488

FEFD State Changes...............................................................................................................................................489

Conguring FEFD.................................................................................................................................................... 490

Enabling FEFD on an Interface.............................................................................................................................. 490

Debugging FEFD.......................................................................................................................................................491

26 Link Layer Discovery Protocol (LLDP)..................................................................................................... 493

802.1AB (LLDP) Overview............................................................................................................................................493

Protocol Data Units................................................................................................................................................. 493

Optional TLVs................................................................................................................................................................. 494

Management TLVs.................................................................................................................................................. 494

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 496

TIA Organizationally Specic TLVs........................................................................................................................496

Congure LLDP............................................................................................................................................................. 500

Related Conguration Tasks...................................................................................................................................500

Important Points to Remember............................................................................................................................. 500

Contents

17

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

CONFIGURATION versus INTERFACE Congurations............................................................................................500

Enabling LLDP................................................................................................................................................................ 501

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

Enabling LLDP on Management Ports........................................................................................................................502

Disabling and Undoing LLDP on Management Ports..........................................................................................502

Advertising TLVs............................................................................................................................................................ 502

Viewing the LLDP Conguration................................................................................................................................. 503

Viewing Information Advertised by Adjacent LLDP Agents..................................................................................... 504

Conguring LLDPDU Intervals.....................................................................................................................................505

Conguring Transmit and Receive Mode................................................................................................................... 505

Conguring the Time to Live Value............................................................................................................................. 506

Debugging LLDP............................................................................................................................................................507

Relevant Management Objects................................................................................................................................... 508

27 Microsoft Network Load Balancing........................................................................................................... 513

NLB Unicast Mode Scenario.........................................................................................................................................513

NLB Multicast Mode Scenario......................................................................................................................................513

Limitations of the NLB Feature.....................................................................................................................................514

Microsoft Clustering.......................................................................................................................................................514

Enable and Disable VLAN Flooding ............................................................................................................................. 514

Conguring a Switch for NLB ......................................................................................................................................514

Enabling a Switch for Multicast NLB..................................................................................................................... 515

28 Multicast Source Discovery Protocol (MSDP)..........................................................................................516

Protocol Overview..........................................................................................................................................................516

Anycast RP......................................................................................................................................................................517

Implementation Information.......................................................................................................................................... 518

Congure Multicast Source Discovery Protocol.........................................................................................................518

Related Conguration Tasks....................................................................................................................................518

Enable MSDP................................................................................................................................................................. 522

Manage the Source-Active Cache.............................................................................................................................. 523

Viewing the Source-Active Cache.........................................................................................................................523

Limiting the Source-Active Cache.........................................................................................................................523

Clearing the Source-Active Cache........................................................................................................................ 524

Enabling the Rejected Source-Active Cache....................................................................................................... 524

Accept Source-Active Messages that Fail the RFP Check......................................................................................524

Specifying Source-Active Messages........................................................................................................................... 527

Limiting the Source-Active Messages from a Peer...................................................................................................528

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

Preventing MSDP from Caching a Remote Source.................................................................................................. 529

Preventing MSDP from Advertising a Local Source..................................................................................................529

Logging Changes in Peership States...........................................................................................................................530

Terminating a Peership..................................................................................................................................................530

Clearing Peer Statistics..................................................................................................................................................531

Debugging MSDP...........................................................................................................................................................531

18

Contents

MSDP with Anycast RP................................................................................................................................................532

Conguring Anycast RP................................................................................................................................................533

Reducing Source-Active Message Flooding.........................................................................................................534

Specifying the RP Address Used in SA Messages.............................................................................................. 534

MSDP Sample Congurations..................................................................................................................................... 536

29 Multiple Spanning Tree Protocol (MSTP)................................................................................................ 539

Protocol Overview.........................................................................................................................................................539

Spanning Tree Variations.............................................................................................................................................. 540

Implementation Information................................................................................................................................... 540

Congure Multiple Spanning Tree Protocol................................................................................................................540

Related Conguration Tasks....................................................................................................................................541

Enable Multiple Spanning Tree Globally....................................................................................................................... 541

Adding and Removing Interfaces..................................................................................................................................541

Creating Multiple Spanning Tree Instances................................................................................................................ 542

Inuencing MSTP Root Selection................................................................................................................................542

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

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

Modifying Global Parameters....................................................................................................................................... 544

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

Conguring an EdgePort.............................................................................................................................................. 546

Flush MAC Addresses after a Topology Change........................................................................................................547

MSTP Sample Congurations...................................................................................................................................... 547

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

CongurationSFTOS Example Running-Conguration....................................................................................... 547

Debugging and Verifying MSTP Congurations........................................................................................................ 549

30 Multicast Features................................................................................................................................... 551

Enabling IP Multicast..................................................................................................................................................... 551

Implementation Information.......................................................................................................................................... 551

Multicast Policies...........................................................................................................................................................552

IPv4 Multicast Policies............................................................................................................................................552

31 Object Tracking........................................................................................................................................ 560

Object Tracking Overview............................................................................................................................................ 560

Track Layer 2 Interfaces.......................................................................................................................................... 561

Track Layer 3 Interfaces.......................................................................................................................................... 561

Track IPv4 and IPv6 Routes................................................................................................................................... 562

Set Tracking Delays................................................................................................................................................. 563

VRRP Object Tracking............................................................................................................................................ 563

Object Tracking Conguration..................................................................................................................................... 563

Tracking a Layer 2 Interface................................................................................................................................... 563

Tracking a Layer 3 Interface................................................................................................................................... 564

Track an IPv4/IPv6 Route......................................................................................................................................566

Displaying Tracked Objects...........................................................................................................................................569

Contents

19

32 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 571

Protocol Overview..........................................................................................................................................................571

Autonomous System (AS) Areas............................................................................................................................ 571

Area Types................................................................................................................................................................ 572

Networks and Neighbors........................................................................................................................................ 573

Router Types.............................................................................................................................................................573

Designated and Backup Designated Routers....................................................................................................... 575

Link-State Advertisements (LSAs)........................................................................................................................ 575

Router Priority and Cost......................................................................................................................................... 576

OSPF with Dell Networking OS................................................................................................................................... 577

Graceful Restart.......................................................................................................................................................578

Fast Convergence (OSPFv2, IPv4 Only).............................................................................................................. 579

Multi-Process OSPFv2 with VRF.......................................................................................................................... 579

RFC-2328 Compliant OSPF Flooding....................................................................................................................579

OSPF ACK Packing................................................................................................................................................. 580

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 580

Conguration Information..............................................................................................................................................581

Conguration Task List for OSPFv2 (OSPF for IPv4)......................................................................................... 581

Conguration Task List for OSPFv3 (OSPF for IPv6).............................................................................................. 595

Enabling IPv6 Unicast Routing...............................................................................................................................596

Assigning IPv6 Addresses on an Interface........................................................................................................... 596

Assigning Area ID on an Interface.......................................................................................................................... 597

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................ 597

Assigning OSPFv3 Process ID and Router ID to a VRF......................................................................................598

Applying cost for OSPFv3......................................................................................................................................598

Conguring Stub Areas...........................................................................................................................................599

Conguring Passive-Interface................................................................................................................................599

Redistributing Routes..............................................................................................................................................599

Conguring a Default Route...................................................................................................................................600

Applying cost for OSPFv3......................................................................................................................................600

Enabling OSPFv3 Graceful Restart.......................................................................................................................600

OSPFv3 Authentication Using IPsec.....................................................................................................................603

Troubleshooting OSPFv3........................................................................................................................................609

33 Policy-based Routing (PBR)..................................................................................................................... 611

Overview.......................................................................................................................................................................... 611

Implementing PBR..........................................................................................................................................................612

Conguration Task List for Policy-based Routing.......................................................................................................612

PBR Exceptions (Permit)........................................................................................................................................ 613

Create a Redirect List.............................................................................................................................................. 613

Create a Rule for a Redirect-list............................................................................................................................. 613

Apply a Redirect-list to an Interface using a Redirect-group.............................................................................. 615

Sample Conguration.....................................................................................................................................................617

Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View Redirect-List GOLD...... 618

20

Contents

Dell PowerSwitch S6100-ON User guide

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