Dell Networking S3100 Series User guide

Dell EMC Conguration Guide for the S3100

Series

9.14.0.0

Notes, cautions, and warnings

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

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

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

trademarks may be trademarks of their respective owners.

2018 - 07

Rev. A00

Contents

1 About this Guide...........................................................................................................................................35

Audience........................................................................................................................................................................... 35

Conventions......................................................................................................................................................................35

Related Documents......................................................................................................................................................... 35

2 Conguration Fundamentals........................................................................................................................ 36

Accessing the Command Line........................................................................................................................................36

CLI Modes.........................................................................................................................................................................36

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

The do Command............................................................................................................................................................. 41

Undoing Commands.........................................................................................................................................................41

Obtaining Help..................................................................................................................................................................42

Entering and Editing Commands....................................................................................................................................42

Command History............................................................................................................................................................ 43

Filtering show Command Outputs.................................................................................................................................43

Example of the grep Keyword.................................................................................................................................. 43

Multiple Users in Conguration Mode...........................................................................................................................44

3 Getting Started............................................................................................................................................46

Console Access................................................................................................................................................................ 47

Serial Console............................................................................................................................................................. 47

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................48

Entering CLI commands Using an SSH Connection..............................................................................................48

Executing Local CLI Scripts Using an SSH Connection........................................................................................48

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

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

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

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

Congure the Management Port IP Address......................................................................................................... 49

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

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

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

Conguration File Management......................................................................................................................................51

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

Mounting an NFS File System..................................................................................................................................52

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

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

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

Compressing Conguration Files............................................................................................................................. 56

Managing the File System.............................................................................................................................................. 58

Enabling Software Features on Devices Using a Command Option..........................................................................59

View Command History.................................................................................................................................................. 60

Contents

3

Upgrading Dell EMC Networking OS............................................................................................................................ 60

Verify Software Images Before Installation...................................................................................................................60

Using HTTP for File Transfers.........................................................................................................................................61

4 Management................................................................................................................................................63

Conguring Privilege Levels............................................................................................................................................63

Creating a Custom Privilege Level...........................................................................................................................63

Removing a Command from EXEC Mode.............................................................................................................. 64

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................64

Allowing Access to CONFIGURATION Mode Commands....................................................................................64

Allowing Access to Dierent Modes........................................................................................................................64

Applying a Privilege Level to a Username............................................................................................................... 66

Applying a Privilege Level to a Terminal Line.......................................................................................................... 66

Conguring Logging........................................................................................................................................................ 66

Audit and Security Logs............................................................................................................................................ 67

Conguring Logging Format ...................................................................................................................................68

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

Setting Up a Secure Connection to a Syslog Server.............................................................................................69

Sending System Messages to a Syslog Server.......................................................................................................71

Track Login Activity.......................................................................................................................................................... 71

Restrictions for Tracking Login Activity................................................................................................................... 71

Conguring Login Activity Tracking..........................................................................................................................71

Display Login Statistics..............................................................................................................................................72

Limit Concurrent Login Sessions....................................................................................................................................73

Restrictions for Limiting the Number of Concurrent Sessions.............................................................................73

Conguring Concurrent Session Limit.....................................................................................................................73

Enabling the System to Clear Existing Sessions.....................................................................................................74

Enabling Secured CLI Mode........................................................................................................................................... 75

Log Messages in the Internal Buer..............................................................................................................................75

Conguration Task List for System Log Management.......................................................................................... 75

Disabling System Logging............................................................................................................................................... 75

Sending System Messages to a Syslog Server............................................................................................................ 76

Conguring a UNIX System as a Syslog Server.....................................................................................................76

Changing System Logging Settings...............................................................................................................................76

Display the Logging Buer and the Logging Conguration........................................................................................ 77

Conguring a UNIX Logging Facility Level.................................................................................................................... 77

Synchronizing Log Messages......................................................................................................................................... 78

Enabling Timestamp on Syslog Messages.................................................................................................................... 79

File Transfer Services.......................................................................................................................................................79

Conguration Task List for File Transfer Services..................................................................................................80

Enabling the FTP Server...........................................................................................................................................80

Conguring FTP Server Parameters....................................................................................................................... 80

Conguring FTP Client Parameters..........................................................................................................................81

Terminal Lines....................................................................................................................................................................81

Denying and Permitting Access to a Terminal Line.................................................................................................81

Conguring Login Authentication for Terminal Lines.............................................................................................82

4

Contents

Setting Timeout for EXEC Privilege Mode................................................................................................................... 83

Using Telnet to get to Another Network Device..........................................................................................................84

Lock CONFIGURATION Mode....................................................................................................................................... 84

Viewing the Conguration Lock Status...................................................................................................................84

Viewing the Reason for Last System Reboot.............................................................................................................. 85

5 802.1X......................................................................................................................................................... 86

Port-Authentication Process..........................................................................................................................................88

EAP over RADIUS......................................................................................................................................................88

Conguring 802.1X...........................................................................................................................................................89

Related Conguration Tasks..................................................................................................................................... 89

Important Points to Remember......................................................................................................................................89

Enabling 802.1X................................................................................................................................................................ 90

Conguring dot1x Prole .................................................................................................................................................91

Conguring MAC addresses for a do1x Prole.............................................................................................................92

Conguring the Static MAB and MAB Prole .............................................................................................................92

Conguring Critical VLAN ..............................................................................................................................................93

Conguring Request Identity Re-Transmissions...........................................................................................................94

Conguring a Quiet Period after a Failed Authentication..................................................................................... 94

Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 95

Re-Authenticating a Port................................................................................................................................................96

Conguring Timeouts...................................................................................................................................................... 97

Conguring Dynamic VLAN Assignment with Port Authentication...........................................................................98

Guest and Authentication-Fail VLANs.......................................................................................................................... 99

Conguring a Guest VLAN....................................................................................................................................... 99

Conguring an Authentication-Fail VLAN...............................................................................................................99

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)................................... 101

Optimizing CAM Utilization During the Attachment of ACLs to VLANs..................................................................101

Guidelines for Conguring ACL VLAN Groups........................................................................................................... 102

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...............................................102

Conguring ACL VLAN Groups.............................................................................................................................. 102

Conguring FP Blocks for VLAN Parameters.......................................................................................................103

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

Allocating FP Blocks for VLAN Processes.................................................................................................................. 105

7 Access Control Lists (ACLs)....................................................................................................................... 107

IP Access Control Lists (ACLs).....................................................................................................................................108

CAM Usage...............................................................................................................................................................109

Implementing ACLs on Dell EMC Networking OS................................................................................................109

Important Points to Remember......................................................................................................................................111

Conguration Task List for Route Maps..................................................................................................................111

Conguring Match Routes.......................................................................................................................................113

Conguring Set Conditions......................................................................................................................................115

Congure a Route Map for Route Redistribution..................................................................................................116

Congure a Route Map for Route Tagging............................................................................................................ 116

Contents

5

Continue Clause.........................................................................................................................................................117

IP Fragment Handling..................................................................................................................................................... 117

IP Fragments ACL Examples....................................................................................................................................117

Layer 4 ACL Rules Examples................................................................................................................................... 118

Congure a Standard IP ACL.........................................................................................................................................118

Conguring a Standard IP ACL Filter......................................................................................................................119

Congure an Extended IP ACL.....................................................................................................................................120

Conguring Filters with a Sequence Number.......................................................................................................120

Conguring Filters Without a Sequence Number.................................................................................................122

Congure Layer 2 and Layer 3 ACLs............................................................................................................................122

Assign an IP ACL to an Interface..................................................................................................................................123

Applying an IP ACL.........................................................................................................................................................123

Counting ACL Hits....................................................................................................................................................124

Congure Ingress ACLs................................................................................................................................................. 124

Congure Egress ACLs..................................................................................................................................................125

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 126

IP Prex Lists.................................................................................................................................................................. 126

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

Conguration Task List for Prex Lists.................................................................................................................. 127

ACL Remarks.................................................................................................................................................................. 130

Conguring a Remark.............................................................................................................................................. 130

Deleting a Remark..................................................................................................................................................... 131

ACL Resequencing......................................................................................................................................................... 132

Resequencing an ACL or Prex List.......................................................................................................................132

Route Maps.....................................................................................................................................................................133

Implementation Information.................................................................................................................................... 133

Logging of ACL Processes............................................................................................................................................ 134

Guidelines for Conguring ACL Logging................................................................................................................135

Conguring ACL Logging........................................................................................................................................ 135

Flow-Based Monitoring..................................................................................................................................................136

Behavior of Flow-Based Monitoring.......................................................................................................................136

Enabling Flow-Based Monitoring............................................................................................................................ 137

8 Bidirectional Forwarding Detection (BFD).................................................................................................. 139

How BFD Works............................................................................................................................................................. 139

BFD Packet Format..................................................................................................................................................140

BFD Sessions............................................................................................................................................................. 141

BFD Three-Way Handshake.................................................................................................................................... 142

Session State Changes............................................................................................................................................144

Important Points to Remember.................................................................................................................................... 144

Congure BFD................................................................................................................................................................ 144

Congure BFD for Physical Ports...........................................................................................................................145

Congure BFD for Static Routes............................................................................................................................146

Congure BFD for IPv6 Static Routes...................................................................................................................150

Congure BFD for OSPF.........................................................................................................................................152

Congure BFD for OSPFv3.....................................................................................................................................156

6

Contents

Congure BFD for IS-IS...........................................................................................................................................159

Congure BFD for BGP............................................................................................................................................161

Congure BFD for VRRP.........................................................................................................................................169

Conguring Protocol Liveness.................................................................................................................................171

9 Border Gateway Protocol (BGP).................................................................................................................172

Border Gateway Protocol version 4 (BGPv4).............................................................................................................172

Autonomous Systems (AS)........................................................................................................................................... 172

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

Four-Byte AS Numbers............................................................................................................................................176

Multiprotocol BGP..........................................................................................................................................................176

MBGP for IPv4 MulticastBGP Address Family modelIPv4 and IPv6 address family........................................177

Sessions and Peers.........................................................................................................................................................177

Establish a Session....................................................................................................................................................177

Implementing BGP global and address family............................................................................................................. 178

BGP global conguration default values................................................................................................................179

BGP Attributes for selecting Best Path.......................................................................................................................179

Best Path Selection Criteria....................................................................................................................................180

Weight.........................................................................................................................................................................181

Local Preference.......................................................................................................................................................182

Multi-Exit Discriminators (MEDs)...........................................................................................................................182

Origin..........................................................................................................................................................................183

AS Path......................................................................................................................................................................184

Next Hop................................................................................................................................................................... 184

Implement BGP with Dell EMC Networking OS.........................................................................................................185

Additional Path (Add-Path) Support......................................................................................................................185

Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 185

Ignore Router-ID in Best-Path Calculation............................................................................................................ 186

AS Number Migration.............................................................................................................................................. 186

BGP4 Management Information Base (MIB)........................................................................................................187

Important Points to Remember...............................................................................................................................187

Conguration Information..............................................................................................................................................188

Conguring a basic BGP network................................................................................................................................ 188

Enabling BGP............................................................................................................................................................ 188

Conguring a BGP peer........................................................................................................................................... 191

Conguring AS4 Number Representations........................................................................................................... 192

Conguring a BGP VRF address family................................................................................................................. 193

Route-refresh and Soft-reconguration................................................................................................................195

Aggregating Routes..................................................................................................................................................198

Filtering BGP Routes................................................................................................................................................198

Filtering BGP Routes Using Route Maps..............................................................................................................200

Filtering BGP Routes Using AS-PATH Information............................................................................................. 200

Conguring Peer Groups.........................................................................................................................................201

Conguring BGP Fast Fall-Over............................................................................................................................ 209

Conguring Passive Peering................................................................................................................................... 210

Maintaining Existing AS Numbers During an AS Migration..................................................................................211

Contents

7

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 212

Enabling Graceful Restart........................................................................................................................................213

Filtering on an AS-Path Attribute........................................................................................................................... 214

Regular Expressions as Filters.................................................................................................................................215

Redistributing Routes...............................................................................................................................................216

Enabling Additional Paths........................................................................................................................................ 217

Conguring IP Community Lists............................................................................................................................. 217

Conguring an IP Extended Community List........................................................................................................218

Filtering Routes with Community Lists..................................................................................................................219

Manipulating the COMMUNITY Attribute............................................................................................................220

Changing MED Attributes....................................................................................................................................... 221

Changing the LOCAL_PREFERENCE Attribute..................................................................................................222

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes.............222

Changing the WEIGHT Attribute........................................................................................................................... 223

Enabling Multipath...................................................................................................................................................223

Route Reectors...................................................................................................................................................... 224

Conguring BGP Confederations.......................................................................................................................... 225

Enabling Route Flap Dampening............................................................................................................................ 225

Changing BGP Timers.............................................................................................................................................228

Setting the extended timer.....................................................................................................................................228

Enabling or disabling BGP neighbors.....................................................................................................................229

Route Map Continue............................................................................................................................................... 230

Enabling MBGP Congurations.................................................................................................................................... 231

MBGP support for IPv6.................................................................................................................................................231

Conguring IPv6 MBGP between peers..................................................................................................................... 231

Example-Conguring IPv4 and IPv6 neighbors......................................................................................................... 232

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor............................................... 234

BGP Regular Expression Optimization........................................................................................................................236

Debugging BGP............................................................................................................................................................. 236

Storing Last and Bad PDUs.................................................................................................................................... 237

Capturing PDUs....................................................................................................................................................... 238

PDU Counters.......................................................................................................................................................... 239

10 Content Addressable Memory (CAM).......................................................................................................240

CAM Allocation...............................................................................................................................................................240

Test CAM Usage............................................................................................................................................................ 242

View CAM-ACL Settings.............................................................................................................................................. 242

View CAM Usage...........................................................................................................................................................244

Conguring CAM Threshold and Silence Period........................................................................................................244

Setting CAM Threshold and Silence Period..........................................................................................................244

CAM Optimization......................................................................................................................................................... 245

Troubleshoot CAM Proling..........................................................................................................................................246

CAM Prole Mismatches........................................................................................................................................ 246

QoS CAM Region Limitation...................................................................................................................................246

11 Control Plane Policing (CoPP).................................................................................................................. 247

8

Contents

Congure Control Plane Policing................................................................................................................................. 248

Conguring CoPP for Protocols............................................................................................................................ 249

Conguring CoPP for CPU Queues....................................................................................................................... 251

CoPP for OSPFv3 Packets.....................................................................................................................................252

Conguring CoPP for OSPFv3..............................................................................................................................255

Displaying CoPP Conguration .............................................................................................................................255

12 Dynamic Host Conguration Protocol (DHCP).........................................................................................258

DHCP Packet Format and Options............................................................................................................................. 258

Assign an IP Address using DHCP...............................................................................................................................260

Implementation Information.......................................................................................................................................... 261

Congure the System to be a DHCP Server.............................................................................................................. 261

Conguring the Server for Automatic Address Allocation..................................................................................262

Specifying a Default Gateway................................................................................................................................ 263

Congure a Method of Hostname Resolution..................................................................................................... 264

Using DNS for Address Resolution........................................................................................................................264

Using NetBIOS WINS for Address Resolution..................................................................................................... 264

Creating Manual Binding Entries............................................................................................................................264

Debugging the DHCP Server.................................................................................................................................265

Using DHCP Clear Commands.............................................................................................................................. 265

Congure the System to be a Relay Agent................................................................................................................ 265

Congure the System to be a DHCP Client............................................................................................................... 267

Conguring the DHCP Client System................................................................................................................... 267

DHCP Client on a Management Interface............................................................................................................268

DHCP Client Operation with Other Features.......................................................................................................269

DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................ 270

Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 270

Congure the System for User Port Stacking (Option 230).....................................................................................271

Congure Secure DHCP................................................................................................................................................271

Option 82.................................................................................................................................................................. 272

DHCP Snooping....................................................................................................................................................... 272

Drop DHCP Packets on Snooped VLANs Only.................................................................................................... 277

Dynamic ARP Inspection.........................................................................................................................................277

Conguring Dynamic ARP Inspection....................................................................................................................278

Source Address Validation.............................................................................................................................................279

Enabling IP Source Address Validation.................................................................................................................. 279

DHCP MAC Source Address Validation................................................................................................................ 280

Enabling IP+MAC Source Address Validation.......................................................................................................280

Viewing the Number of SAV Dropped Packets.................................................................................................... 281

Clearing the Number of SAV Dropped Packets....................................................................................................281

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 282

ECMP for Flow-Based Anity.....................................................................................................................................282

Conguring the Hash Algorithm............................................................................................................................ 282

Enabling Deterministic ECMP Next Hop.............................................................................................................. 282

Conguring the Hash Algorithm Seed.................................................................................................................. 283

Contents

9

Link Bundle Monitoring................................................................................................................................................. 283

Managing ECMP Group Paths...............................................................................................................................284

Creating an ECMP Group Bundle.......................................................................................................................... 284

Modifying the ECMP Group Threshold.................................................................................................................284

14 FIPS Cryptography...................................................................................................................................286

Conguration Tasks....................................................................................................................................................... 286

Preparing the System....................................................................................................................................................286

Enabling FIPS Mode...................................................................................................................................................... 287

Generating Host-Keys................................................................................................................................................... 287

Monitoring FIPS Mode Status......................................................................................................................................287

Disabling FIPS Mode..................................................................................................................................................... 288

15 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 289

Protocol Overview.........................................................................................................................................................289

Ring Status...............................................................................................................................................................290

Multiple FRRP Rings............................................................................................................................................... 290

Important FRRP Points............................................................................................................................................291

Important FRRP Concepts..................................................................................................................................... 292

Implementing FRRP.......................................................................................................................................................293

FRRP Conguration.......................................................................................................................................................293

Creating the FRRP Group.......................................................................................................................................293

Conguring the Control VLAN...............................................................................................................................294

Conguring and Adding the Member VLANs...................................................................................................... 295

Setting the FRRP Timers........................................................................................................................................296

Clearing the FRRP Counters..................................................................................................................................296

Viewing the FRRP Conguration...........................................................................................................................296

Viewing the FRRP Information.............................................................................................................................. 296

Troubleshooting FRRP...................................................................................................................................................297

Conguration Checks..............................................................................................................................................297

Sample Conguration and Topology............................................................................................................................ 297

16 GARP VLAN Registration Protocol (GVRP)..............................................................................................299

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

Congure GVRP............................................................................................................................................................ 300

Related Conguration Tasks...................................................................................................................................300

Enabling GVRP Globally.................................................................................................................................................301

Enabling GVRP on a Layer 2 Interface.........................................................................................................................301

Congure GVRP Registration....................................................................................................................................... 301

Congure a GARP Timer.............................................................................................................................................. 302

RPM Redundancy..........................................................................................................................................................302

17 High Availability (HA)............................................................................................................................... 304

Component Redundancy.............................................................................................................................................. 304

Automatic and Manual Stack Unit Failover.......................................................................................................... 304

Synchronization between Management and Standby Units..............................................................................305

10

Contents

Forcing a Stack Unit Failover................................................................................................................................. 305

Disabling Auto-Reboot............................................................................................................................................ 306

Pre-Conguring a Stack Unit Slot............................................................................................................................... 306

Removing a Provisioned Logical Stack Unit............................................................................................................... 306

Hitless Behavior..............................................................................................................................................................307

Graceful Restart.............................................................................................................................................................307

Software Resiliency....................................................................................................................................................... 307

Software Component Health Monitoring............................................................................................................. 307

System Health Monitoring......................................................................................................................................308

Failure and Event Logging...................................................................................................................................... 308

Hot-Lock Behavior.........................................................................................................................................................309

18 Internet Group Management Protocol (IGMP)..........................................................................................310

IGMP Implementation Information............................................................................................................................... 310

IGMP Protocol Overview...............................................................................................................................................310

IGMP Version 2.........................................................................................................................................................310

IGMP Version 3.........................................................................................................................................................312

Congure IGMP..............................................................................................................................................................315

Related Conguration Tasks....................................................................................................................................315

Viewing IGMP Enabled Interfaces................................................................................................................................316

Selecting an IGMP Version............................................................................................................................................316

Viewing IGMP Groups....................................................................................................................................................317

Adjusting Timers............................................................................................................................................................. 317

Adjusting Query and Response Timers.................................................................................................................. 317

Preventing a Host from Joining a Group..................................................................................................................... 318

Enabling IGMP Immediate-Leave................................................................................................................................. 321

IGMP Snooping...............................................................................................................................................................321

IGMP Snooping Implementation Information........................................................................................................321

Conguring IGMP Snooping................................................................................................................................... 321

Removing a Group-Port Association.....................................................................................................................322

Disabling Multicast Flooding...................................................................................................................................322

Specifying a Port as Connected to a Multicast Router...................................................................................... 323

Conguring the Switch as Querier........................................................................................................................ 323

Fast Convergence after MSTP Topology Changes................................................................................................... 324

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................324

Protocol Separation................................................................................................................................................. 324

Enabling and Disabling Management Egress Interface Selection...................................................................... 325

Handling of Management Route Conguration................................................................................................... 326

Handling of Switch-Initiated Trac........................................................................................................................327

Handling of Switch-Destined Trac......................................................................................................................327

Handling of Transit Trac (Trac Separation).................................................................................................... 328

Mapping of Management Applications and Trac Type.....................................................................................328

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 329

Behavior of Various Applications for Switch-Destined Trac ...........................................................................330

Interworking of EIS With Various Applications......................................................................................................331

Designating a Multicast Router Interface....................................................................................................................331

Contents

11

19 Interfaces................................................................................................................................................. 333

Basic Interface Conguration.......................................................................................................................................333

Advanced Interface Conguration...............................................................................................................................333

Interface Types...............................................................................................................................................................334

Optional Modules...........................................................................................................................................................334

View Basic Interface Information.................................................................................................................................335

Resetting an Interface to its Factory Default State...................................................................................................336

Enabling Energy Ecient Ethernet..............................................................................................................................337

View EEE Information....................................................................................................................................................337

Clear EEE Counters........................................................................................................................................................341

Enabling a Physical Interface........................................................................................................................................342

Physical Interfaces.........................................................................................................................................................342

Conguration Task List for Physical Interfaces.................................................................................................... 343

Overview of Layer Modes.......................................................................................................................................343

Conguring Layer 2 (Data Link) Mode..................................................................................................................343

Conguring Layer 2 (Interface) Mode...................................................................................................................344

Conguring Layer 3 (Network) Mode...................................................................................................................344

Conguring Layer 3 (Interface) Mode.................................................................................................................. 345

Automatic recovery of an Err-disabled interface.......................................................................................................345

Conguring an automatic recovery for an Err-disabled interface......................................................................346

Egress Interface Selection (EIS)..................................................................................................................................346

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

Conguring EIS........................................................................................................................................................ 347

Management Interfaces................................................................................................................................................347

Conguring Management Interfaces.....................................................................................................................347

Conguring a Management Interface on an Ethernet Port................................................................................349

VLAN Interfaces............................................................................................................................................................ 349

Loopback Interfaces......................................................................................................................................................350

Null Interfaces................................................................................................................................................................ 350

Port Channel Interfaces.................................................................................................................................................351

Port Channel Denition and Standards..................................................................................................................351

Port Channel Benets..............................................................................................................................................351

Port Channel Implementation................................................................................................................................. 351

Interfaces in Port Channels.................................................................................................................................... 352

Conguration Tasks for Port Channel Interfaces.................................................................................................352

Creating a Port Channel..........................................................................................................................................352

Adding a Physical Interface to a Port Channel.....................................................................................................353

Reassigning an Interface to a New Port Channel................................................................................................354

Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 355

Adding or Removing a Port Channel from a VLAN............................................................................................. 355

Assigning an IP Address to a Port Channel.......................................................................................................... 357

Deleting or Disabling a Port Channel..................................................................................................................... 357

Load Balancing Through Port Channels................................................................................................................357

Load-Balancing Method..........................................................................................................................................357

Changing the Hash Algorithm................................................................................................................................358

12

Contents

Bulk Conguration......................................................................................................................................................... 359

Interface Range....................................................................................................................................................... 359

Bulk Conguration Examples..................................................................................................................................360

Dening Interface Range Macros.................................................................................................................................361

Dene the Interface Range..................................................................................................................................... 361

Choosing an Interface-Range Macro.....................................................................................................................361

Monitoring and Maintaining Interfaces....................................................................................................................... 362

Maintenance Using TDR......................................................................................................................................... 363

Link Dampening..............................................................................................................................................................363

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

Conguration Example of Link Dampening...........................................................................................................364

Enabling Link Dampening........................................................................................................................................366

Link Bundle Monitoring..................................................................................................................................................367

Using Ethernet Pause Frames for Flow Control........................................................................................................ 368

Enabling Pause Frames...........................................................................................................................................368

Congure the MTU Size on an Interface....................................................................................................................369

Port-Pipes.......................................................................................................................................................................370

Auto-Negotiation on Ethernet Interfaces................................................................................................................... 370

Setting the Speed of Ethernet Interfaces............................................................................................................ 370

Set Auto-Negotiation Options................................................................................................................................372

Provisioning Combo Ports.............................................................................................................................................373

View Advanced Interface Information......................................................................................................................... 373

Conguring the Interface Sampling Size...............................................................................................................374

Conguring the Trac Sampling Size Globally...........................................................................................................375

Dynamic Counters..........................................................................................................................................................376

Clearing Interface Counters....................................................................................................................................377

20 Internet Protocol Security (IPSec)...........................................................................................................378

Conguring IPSec ......................................................................................................................................................... 378

21 IPv4 Routing............................................................................................................................................ 380

IP Addresses....................................................................................................................................................................381

Implementation Information.................................................................................................................................... 381

Conguration Tasks for IP Addresses.......................................................................................................................... 381

Assigning IP Addresses to an Interface........................................................................................................................381

Conguring Static Routes.............................................................................................................................................382

Congure Static Routes for the Management Interface.......................................................................................... 383

IPv4 Path MTU Discovery Overview.......................................................................................................................... 384

Packet handling during MTU mismatch................................................................................................................384

Using the Congured Source IP Address in ICMP Messages..................................................................................384

Conguring the ICMP Source Interface............................................................................................................... 384

Conguring the Duration to Establish a TCP Connection........................................................................................ 385

Enabling Directed Broadcast........................................................................................................................................ 385

Resolution of Host Names............................................................................................................................................386

Enabling Dynamic Resolution of Host Names............................................................................................................386

Specifying the Local System Domain and a List of Domains................................................................................... 386

Contents

13

Conguring DNS with Traceroute................................................................................................................................387

ARP................................................................................................................................................................................. 388

Conguration Tasks for ARP........................................................................................................................................ 388

Conguring Static ARP Entries....................................................................................................................................388

Enabling Proxy ARP.......................................................................................................................................................389

Clearing ARP Cache......................................................................................................................................................389

ARP Learning via Gratuitous ARP............................................................................................................................... 389

Enabling ARP Learning via Gratuitous ARP................................................................................................................389

ARP Learning via ARP Request................................................................................................................................... 390

Conguring ARP Retries...............................................................................................................................................390

ICMP................................................................................................................................................................................ 391

Conguration Tasks for ICMP.......................................................................................................................................391

Enabling ICMP Unreachable Messages.......................................................................................................................391

UDP Helper.....................................................................................................................................................................392

Congure UDP Helper.............................................................................................................................................392

Important Points to Remember............................................................................................................................. 392

Enabling UDP Helper.....................................................................................................................................................392

Conguring a Broadcast Address................................................................................................................................ 392

Congurations Using UDP Helper............................................................................................................................... 393

UDP Helper with Broadcast-All Addresses.................................................................................................................393

UDP Helper with Subnet Broadcast Addresses.........................................................................................................394

UDP Helper with Congured Broadcast Addresses..................................................................................................394

UDP Helper with No Congured Broadcast Addresses............................................................................................395

Troubleshooting UDP Helper........................................................................................................................................395

22 IPv6 Routing............................................................................................................................................396

Protocol Overview.........................................................................................................................................................396

Extended Address Space........................................................................................................................................397

Stateless Autoconguration....................................................................................................................................397

IPv6 Headers............................................................................................................................................................ 397

IPv6 Header Fields...................................................................................................................................................398

Extension Header Fields......................................................................................................................................... 400

Addressing.................................................................................................................................................................401

Implementing IPv6 with Dell EMC Networking OS................................................................................................... 402

ICMPv6...........................................................................................................................................................................403

Path MTU discovery..................................................................................................................................................... 404

IPv6 Neighbor Discovery..............................................................................................................................................404

IPv6 Neighbor Discovery of MTU Packets.......................................................................................................... 405

Conguration Task List for IPv6 RDNSS.................................................................................................................... 405

Conguring the IPv6 Recursive DNS Server....................................................................................................... 405

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................406

Displaying IPv6 RDNSS Information......................................................................................................................407

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 407

Conguration Tasks for IPv6........................................................................................................................................408

Adjusting Your CAM-Prole....................................................................................................................................408

Assigning an IPv6 Address to an Interface...........................................................................................................409

14

Contents

Assigning a Static IPv6 Route................................................................................................................................409

Conguring Telnet with IPv6...................................................................................................................................410

SNMP over IPv6.......................................................................................................................................................410

Displaying IPv6 Information.....................................................................................................................................410

Displaying an IPv6 Interface Information................................................................................................................411

Showing IPv6 Routes............................................................................................................................................... 411

Showing the Running-Conguration for an Interface..........................................................................................413

Clearing IPv6 Routes................................................................................................................................................413

Disabling ND Entry Timeout....................................................................................................................................413

Conguring IPv6 RA Guard...........................................................................................................................................414

Conguring IPv6 RA Guard on an Interface..........................................................................................................415

Monitoring IPv6 RA Guard...................................................................................................................................... 416

23 iSCSI Optimization................................................................................................................................... 417

iSCSI Optimization Overview........................................................................................................................................ 417

Monitoring iSCSI Trac Flows................................................................................................................................419

Application of Quality of Service to iSCSI Trac Flows...................................................................................... 419

Information Monitored in iSCSI Trac Flows........................................................................................................419

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 420

Conguring Detection and Ports for Dell Compellent Arrays.............................................................................420

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer..................................................................421

Enable and Disable iSCSI Optimization..................................................................................................................421

Default iSCSI Optimization Values...............................................................................................................................422

iSCSI Optimization Prerequisites................................................................................................................................. 422

Conguring iSCSI Optimization....................................................................................................................................422

Displaying iSCSI Optimization Information..................................................................................................................424

24 Intermediate System to Intermediate System.......................................................................................... 426

IS-IS Protocol Overview................................................................................................................................................426

IS-IS Addressing.............................................................................................................................................................426

Multi-Topology IS-IS.......................................................................................................................................................427

Transition Mode........................................................................................................................................................427

Interface Support.....................................................................................................................................................428

Adjacencies...............................................................................................................................................................428

Graceful Restart.............................................................................................................................................................428

Timers........................................................................................................................................................................428

Implementation Information..........................................................................................................................................428

Conguration Information.............................................................................................................................................429

Conguration Tasks for IS-IS..................................................................................................................................430

Conguring the Distance of a Route..................................................................................................................... 437

Changing the IS-Type.............................................................................................................................................. 438

Redistributing IPv4 Routes.....................................................................................................................................440

Redistributing IPv6 Routes......................................................................................................................................441

Conguring Authentication Passwords.................................................................................................................442

Setting the Overload Bit......................................................................................................................................... 442

Debugging IS-IS....................................................................................................................................................... 443

Contents

15

IS-IS Metric Styles.........................................................................................................................................................444

Congure Metric Values................................................................................................................................................444

Maximum Values in the Routing Table...................................................................................................................444

Change the IS-IS Metric Style in One Level Only................................................................................................444

Leaks from One Level to Another..........................................................................................................................446

Sample Congurations.................................................................................................................................................. 447

25 Link Aggregation Control Protocol (LACP).............................................................................................. 449

Introduction to Dynamic LAGs and LACP.................................................................................................................. 449

Important Points to Remember............................................................................................................................. 449

LACP Modes............................................................................................................................................................450

Conguring LACP Commands...............................................................................................................................450

LACP Conguration Tasks.............................................................................................................................................451

Creating a LAG..........................................................................................................................................................451

Conguring the LAG Interfaces as Dynamic.........................................................................................................451

Setting the LACP Long Timeout............................................................................................................................452

Monitoring and Debugging LACP..........................................................................................................................452

Shared LAG State Tracking.......................................................................................................................................... 453

Conguring Shared LAG State Tracking...............................................................................................................453

Important Points about Shared LAG State Tracking...........................................................................................455

LACP Basic Conguration Example............................................................................................................................ 455

Congure a LAG on ALPHA................................................................................................................................... 455

26 Layer 2.....................................................................................................................................................464

Manage the MAC Address Table................................................................................................................................. 464

Clearing the MAC Address Table........................................................................................................................... 464

Setting the Aging Time for Dynamic Entries........................................................................................................464

Conguring a Static MAC Address........................................................................................................................465

Displaying the MAC Address Table........................................................................................................................465

MAC Learning Limit.......................................................................................................................................................465

Setting the MAC Learning Limit............................................................................................................................ 466

mac learning-limit Dynamic.................................................................................................................................... 466

mac learning-limit mac-address-sticky................................................................................................................. 466

mac learning-limit station-move.............................................................................................................................467

mac learning-limit no-station-move.......................................................................................................................467

Learning Limit Violation Actions............................................................................................................................. 467

Setting Station Move Violation Actions................................................................................................................ 468

Recovering from Learning Limit and Station Move Violations........................................................................... 468

Disabling MAC Address Learning on the System.................................................................................................469

NIC Teaming................................................................................................................................................................... 469

Congure Redundant Pairs...........................................................................................................................................470

Important Points about Conguring Redundant Pairs.........................................................................................472

Far-End Failure Detection............................................................................................................................................. 473

FEFD State Changes............................................................................................................................................... 474

Conguring FEFD.................................................................................................................................................... 475

Enabling FEFD on an Interface...............................................................................................................................475

16

Contents

Debugging FEFD......................................................................................................................................................476

27 Link Layer Discovery Protocol (LLDP)......................................................................................................478

802.1AB (LLDP) Overview............................................................................................................................................478

Protocol Data Units..................................................................................................................................................478

Optional TLVs................................................................................................................................................................. 479

Management TLVs...................................................................................................................................................479

TIA-1057 (LLDP-MED) Overview................................................................................................................................. 481

TIA Organizationally Specic TLVs......................................................................................................................... 481

Congure LLDP............................................................................................................................................................. 485

Related Conguration Tasks...................................................................................................................................485

Important Points to Remember............................................................................................................................. 485

LLDP Compatibility..................................................................................................................................................486

CONFIGURATION versus INTERFACE Congurations............................................................................................ 486

Enabling LLDP................................................................................................................................................................486

Disabling and Undoing LLDP.................................................................................................................................. 487

Enabling LLDP on Management Ports........................................................................................................................ 487

Disabling and Undoing LLDP on Management Ports.......................................................................................... 487

Advertising TLVs............................................................................................................................................................ 487

Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................489

Reserved Unrecognized LLDP TLVs..................................................................................................................... 489

Organizational Specic Unrecognized LLDP TLVs..............................................................................................489

Viewing Unrecognized LLDP TLVs........................................................................................................................ 489

Viewing the LLDP Conguration................................................................................................................................. 490

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................490

Examples of Viewing Information Advertised by Neighbors.............................................................................. 490

Conguring LLDPDU Intervals..................................................................................................................................... 492

Conguring LLDP Notication Interval....................................................................................................................... 493

Conguring Transmit and Receive Mode....................................................................................................................493

Conguring the Time to Live Value............................................................................................................................. 494

Debugging LLDP............................................................................................................................................................494

Relevant Management Objects................................................................................................................................... 496

28 Microsoft Network Load Balancing...........................................................................................................501

NLB Unicast Mode Scenario.........................................................................................................................................501

NLB Multicast Mode Scenario......................................................................................................................................501

Limitations of the NLB Feature....................................................................................................................................502

Microsoft Clustering......................................................................................................................................................502

Enable and Disable VLAN Flooding ............................................................................................................................ 502

Conguring a Switch for NLB .....................................................................................................................................502

Enabling a Switch for Multicast NLB.................................................................................................................... 503

29 Multicast Source Discovery Protocol (MSDP).........................................................................................504

Protocol Overview.........................................................................................................................................................504

Anycast RP.....................................................................................................................................................................505

Implementation Information......................................................................................................................................... 506

Contents

17

Congure Multicast Source Discovery Protocol........................................................................................................506

Related Conguration Tasks...................................................................................................................................506

Enable MSDP..................................................................................................................................................................510

Manage the Source-Active Cache................................................................................................................................511

Viewing the Source-Active Cache.......................................................................................................................... 511

Limiting the Source-Active Cache.......................................................................................................................... 511

Clearing the Source-Active Cache.........................................................................................................................512

Enabling the Rejected Source-Active Cache........................................................................................................ 512

Accept Source-Active Messages that Fail the RFP Check...................................................................................... 512

Specifying Source-Active Messages........................................................................................................................... 515

Limiting the Source-Active Messages from a Peer....................................................................................................516

Preventing MSDP from Caching a Local Source........................................................................................................516

Preventing MSDP from Caching a Remote Source................................................................................................... 517

Preventing MSDP from Advertising a Local Source...................................................................................................517

Logging Changes in Peership States............................................................................................................................518

Terminating a Peership...................................................................................................................................................518

Clearing Peer Statistics..................................................................................................................................................519

Debugging MSDP...........................................................................................................................................................519

MSDP with Anycast RP................................................................................................................................................520

Conguring Anycast RP................................................................................................................................................ 521

Reducing Source-Active Message Flooding.........................................................................................................522

Specifying the RP Address Used in SA Messages.............................................................................................. 522

MSDP Sample Congurations......................................................................................................................................524

33 Multicast Listener Discovery Protocol......................................................................................................527

MLD Version 1.................................................................................................................................................................527

MLD Querier Router...................................................................................................................................................... 527

Joining a Multicast Group.............................................................................................................................................528

Leaving a Multicast Group............................................................................................................................................528

MLD version 2................................................................................................................................................................528

MLD timers.....................................................................................................................................................................530

Reducing Host Response Burstiness..................................................................................................................... 531

Clearing MLD groups..................................................................................................................................................... 531

Debugging MLD..............................................................................................................................................................531

Explicit Tracking..............................................................................................................................................................531

Reducing Leave Latency................................................................................................................................................531

Displaying MLD groups table........................................................................................................................................532

Displaying MLD Interfaces............................................................................................................................................532

31 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 533

Protocol Overview.........................................................................................................................................................533

Spanning Tree Variations...............................................................................................................................................534

Implementation Information....................................................................................................................................534

Congure Multiple Spanning Tree Protocol................................................................................................................534

Related Conguration Tasks...................................................................................................................................535

Enable Multiple Spanning Tree Globally...................................................................................................................... 535

18

Contents

Adding and Removing Interfaces.................................................................................................................................535

Creating Multiple Spanning Tree Instances................................................................................................................ 536

Inuencing MSTP Root Selection................................................................................................................................537

Interoperate with Non-Dell Bridges............................................................................................................................. 537

Changing the Region Name or Revision..................................................................................................................... 538

Modifying Global Parameters.......................................................................................................................................538

Modifying the Interface Parameters........................................................................................................................... 539

Conguring an EdgePort.............................................................................................................................................. 540

Flush MAC Addresses after a Topology Change........................................................................................................ 541

MSTP Sample Congurations.......................................................................................................................................541

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

CongurationSFTOS Example Running-Conguration.......................................................................................542

Debugging and Verifying MSTP Congurations........................................................................................................ 545

32 Multicast Features................................................................................................................................... 547

Enabling IP Multicast.....................................................................................................................................................547

Implementation Information..........................................................................................................................................547

Multicast Policies...........................................................................................................................................................548

IPv4 Multicast Policies............................................................................................................................................548

Understanding Multicast Traceroute (mtrace).................................................................................................... 555

Printing Multicast Traceroute (mtrace) Paths..................................................................................................... 556

Supported Error Codes........................................................................................................................................... 557

mtrace Scenarios.....................................................................................................................................................558

33 Multicast Listener Discovery Protocol..................................................................................................... 564

MLD Version 1................................................................................................................................................................ 564

MLD Querier Router......................................................................................................................................................564

Joining a Multicast Group.............................................................................................................................................565

Leaving a Multicast Group............................................................................................................................................565

MLD version 2................................................................................................................................................................565

MLD timers.....................................................................................................................................................................567

Reducing Host Response Burstiness.................................................................................................................... 568

Clearing MLD groups.................................................................................................................................................... 568

Debugging MLD.............................................................................................................................................................568

Explicit Tracking............................................................................................................................................................. 568

Reducing Leave Latency...............................................................................................................................................568

Displaying MLD groups table........................................................................................................................................569

Displaying MLD Interfaces............................................................................................................................................569

MLD Snooping............................................................................................................................................................... 569

Enable MLD Snooping............................................................................................................................................ 569

Disable MLD Snooping............................................................................................................................................ 570

Congure the switch as a querier..........................................................................................................................570

Specify port as connected to multicast router.................................................................................................... 570

Enable Snooping Explicit Tracking..........................................................................................................................571

Display the MLD Snooping Table............................................................................................................................ 571

Contents

19

34 Object Tracking........................................................................................................................................572

Object Tracking Overview.............................................................................................................................................572

Track Layer 2 Interfaces..........................................................................................................................................573

Track Layer 3 Interfaces..........................................................................................................................................573

Track IPv4 and IPv6 Routes....................................................................................................................................574

Set Tracking Delays................................................................................................................................................. 575

VRRP Object Tracking.............................................................................................................................................575

Object Tracking Conguration......................................................................................................................................575

Tracking a Layer 2 Interface................................................................................................................................... 575

Tracking a Layer 3 Interface................................................................................................................................... 576

Track an IPv4/IPv6 Route...................................................................................................................................... 578

Displaying Tracked Objects............................................................................................................................................581

35 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................583

Protocol Overview.........................................................................................................................................................583

Autonomous System (AS) Areas........................................................................................................................... 583

Area Types................................................................................................................................................................ 584

Networks and Neighbors........................................................................................................................................585

Router Types............................................................................................................................................................ 585

Designated and Backup Designated Routers....................................................................................................... 587

Link-State Advertisements (LSAs)........................................................................................................................ 587

Router Priority and Cost.........................................................................................................................................588

OSPF with Dell EMC Networking OS.........................................................................................................................589

Graceful Restart...................................................................................................................................................... 590

Fast Convergence (OSPFv2, IPv4 Only)...............................................................................................................591

Multi-Process OSPFv2 with VRF...........................................................................................................................591

OSPF ACK Packing..................................................................................................................................................591

Setting OSPF Adjacency with Cisco Routers.......................................................................................................591

Conguration Information.............................................................................................................................................592

Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 592

OSPFv3 NSSA............................................................................................................................................................... 606

NSSA Options..........................................................................................................................................................606

Conguration Task List for OSPFv3 (OSPF for IPv6)...............................................................................................607

Enabling IPv6 Unicast Routing...............................................................................................................................607

Applying cost for OSPFv3......................................................................................................................................608

Assigning IPv6 Addresses on an Interface........................................................................................................... 608

Assigning Area ID on an Interface..........................................................................................................................608

Assigning OSPFv3 Process ID and Router ID Globally........................................................................................609

Assigning OSPFv3 Process ID and Router ID to a VRF......................................................................................609

Conguring Stub Areas............................................................................................................................................610

Conguring Passive-Interface................................................................................................................................ 610

Redistributing Routes.............................................................................................................................................. 610

Conguring a Default Route.................................................................................................................................... 611

Enabling OSPFv3 Graceful Restart.........................................................................................................................611

OSPFv3 Authentication Using IPsec......................................................................................................................613

20

Contents

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Dell Networking S3100 Series User guide

Dell Networking S3100 Series User guide

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