Dell PowerSwitch S3048-ON Quick start guide

Dell EMC Conguration Guide for the S3048–ON

System

9.14.2.2

Notes, cautions, and warnings

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

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

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

may be trademarks of their respective owners.

2019 - 07

Rev. A00

Contents

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

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

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

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

2 Conguration Fundamentals........................................................................................................................ 35

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

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

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

The do Command............................................................................................................................................................ 40

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

Obtaining Help...................................................................................................................................................................41

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

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

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

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

Multiple Users in Conguration Mode...........................................................................................................................43

3 Getting Started............................................................................................................................................45

Console Access................................................................................................................................................................46

Serial Console.............................................................................................................................................................46

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................47

Entering CLI commands Using an SSH Connection..............................................................................................47

Executing Local CLI Scripts Using an SSH Connection........................................................................................ 47

Default Conguration...................................................................................................................................................... 48

Conguring a Host Name............................................................................................................................................... 48

Accessing the System Remotely....................................................................................................................................48

Accessing the System Remotely..............................................................................................................................48

Congure the Management Port IP Address......................................................................................................... 48

Congure a Management Route..............................................................................................................................49

Conguring a Username and Password..................................................................................................................49

Conguring the Enable Password..................................................................................................................................50

Conguration File Management.....................................................................................................................................50

Copy Files to and from the System..........................................................................................................................51

Mounting an NFS File System...................................................................................................................................51

Save the Running-Conguration..............................................................................................................................53

Congure the Overload Bit for a Startup Scenario............................................................................................... 54

Viewing Files...............................................................................................................................................................54

Compressing Conguration Files............................................................................................................................. 55

Managing the File System...............................................................................................................................................57

Enabling Software Features on Devices Using a Command Option..........................................................................58

View Command History.................................................................................................................................................. 58

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...........................................................................................................................64

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 ...................................................................................................................................69

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

Setting Up a Secure Connection to a Syslog Server.............................................................................................70

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.....................................................................................................................74

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.................................................................................................................... 78

Synchronizing Log Messages......................................................................................................................................... 79

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

File Transfer Services...................................................................................................................................................... 82

Conguration Task List for File Transfer Services..................................................................................................82

Enabling the FTP Server...........................................................................................................................................82

Conguring FTP Server Parameters....................................................................................................................... 83

Conguring FTP Client Parameters.........................................................................................................................83

Terminal Lines...................................................................................................................................................................84

Denying and Permitting Access to a Terminal Line................................................................................................84

Conguring Login Authentication for Terminal Lines.............................................................................................85

4

Contents

Setting Timeout for EXEC Privilege Mode................................................................................................................... 86

Using Telnet to get to Another Network Device..........................................................................................................86

Lock CONFIGURATION Mode....................................................................................................................................... 87

Viewing the Conguration Lock Status...................................................................................................................87

LPC Bus Quality Degradation.........................................................................................................................................88

LBQA (LPC Bus Quality Analyzer) Failure Detection mode..................................................................................88

Reloading the system...................................................................................................................................................... 88

Viewing the Reason for Last System Reboot.............................................................................................................. 89

5 802.1X......................................................................................................................................................... 90

Port-Authentication Process.......................................................................................................................................... 92

EAP over RADIUS......................................................................................................................................................92

Conguring 802.1X...........................................................................................................................................................93

Related Conguration Tasks..................................................................................................................................... 93

Important Points to Remember......................................................................................................................................93

Conguring dot1x Prole ................................................................................................................................................94

Conguring MAC addresses for a do1x Prole.............................................................................................................94

Conguring the Static MAB and MAB Prole .............................................................................................................94

Conguring Critical VLAN ..............................................................................................................................................95

Enabling 802.1X.................................................................................................................................................................97

Conguring Request Identity Re-Transmissions...........................................................................................................98

Conguring a Quiet Period after a Failed Authentication..................................................................................... 99

Forcibly Authorizing or Unauthorizing a Port..............................................................................................................100

Re-Authenticating a Port.............................................................................................................................................. 100

Conguring Timeouts..................................................................................................................................................... 101

Conguring Dynamic VLAN Assignment with Port Authentication......................................................................... 102

Guest and Authentication-Fail VLANs.........................................................................................................................103

Conguring a Guest VLAN......................................................................................................................................104

Conguring an Authentication-Fail VLAN............................................................................................................. 104

6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).................................. 106

Optimizing CAM Utilization During the Attachment of ACLs to VLANs................................................................. 106

Guidelines for Conguring ACL VLAN Groups............................................................................................................107

Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...............................................107

Conguring ACL VLAN Groups.............................................................................................................................. 107

Conguring FP Blocks for VLAN Parameters.......................................................................................................108

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

Allocating FP Blocks for VLAN Processes................................................................................................................... 110

7 Access Control Lists (ACLs)........................................................................................................................112

IP Access Control Lists (ACLs)......................................................................................................................................113

CAM Usage................................................................................................................................................................114

Implementing ACLs on Dell EMC Networking OS.................................................................................................114

Important Points to Remember.....................................................................................................................................116

Conguration Task List for Route Maps.................................................................................................................116

Conguring Match Routes.......................................................................................................................................118

Contents

5

Conguring Set Conditions..................................................................................................................................... 120

Congure a Route Map for Route Redistribution..................................................................................................121

Congure a Route Map for Route Tagging............................................................................................................ 121

Continue Clause........................................................................................................................................................122

IP Fragment Handling.................................................................................................................................................... 122

IP Fragments ACL Examples...................................................................................................................................122

Layer 4 ACL Rules Examples...................................................................................................................................123

Congure a Standard IP ACL........................................................................................................................................ 123

Conguring a Standard IP ACL Filter..................................................................................................................... 124

Congure an Extended IP ACL.....................................................................................................................................125

Conguring Filters with a Sequence Number.......................................................................................................125

Conguring Filters Without a Sequence Number.................................................................................................127

Congure Layer 2 and Layer 3 ACLs............................................................................................................................127

Assign an IP ACL to an Interface..................................................................................................................................128

Applying an IP ACL.........................................................................................................................................................128

Counting ACL Hits....................................................................................................................................................129

Congure Ingress ACLs................................................................................................................................................. 129

Congure Egress ACLs..................................................................................................................................................130

Applying Egress Layer 3 ACLs (Control-Plane)..................................................................................................... 131

IP Prex Lists................................................................................................................................................................... 131

Implementation Information.................................................................................................................................... 132

Conguration Task List for Prex Lists.................................................................................................................. 132

ACL Remarks.................................................................................................................................................................. 135

Conguring a Remark.............................................................................................................................................. 135

Deleting a Remark.................................................................................................................................................... 136

ACL Resequencing......................................................................................................................................................... 137

Resequencing an ACL or Prex List.......................................................................................................................137

Route Maps.....................................................................................................................................................................138

Implementation Information.................................................................................................................................... 138

Logging of ACL Processes............................................................................................................................................ 139

Guidelines for Conguring ACL Logging................................................................................................................140

Conguring ACL Logging........................................................................................................................................ 140

Flow-Based Monitoring.................................................................................................................................................. 141

Behavior of Flow-Based Monitoring....................................................................................................................... 141

Enabling Flow-Based Monitoring............................................................................................................................142

8 Bidirectional Forwarding Detection (BFD).................................................................................................. 144

How BFD Works............................................................................................................................................................. 144

BFD Packet Format..................................................................................................................................................145

BFD Sessions............................................................................................................................................................ 146

BFD Three-Way Handshake.................................................................................................................................... 147

Session State Changes............................................................................................................................................149

Important Points to Remember.................................................................................................................................... 149

Congure BFD................................................................................................................................................................ 150

Congure BFD for Physical Ports.......................................................................................................................... 150

Congure BFD for Static Routes............................................................................................................................152

6

Contents

Congure BFD for IPv6 Static Routes...................................................................................................................155

Congure BFD for OSPF.........................................................................................................................................158

Congure BFD for OSPFv3..................................................................................................................................... 161

Congure BFD for IS-IS...........................................................................................................................................164

Congure BFD for BGP...........................................................................................................................................166

Congure BFD for VRRP.........................................................................................................................................173

Conguring Protocol Liveness................................................................................................................................ 176

9 Border Gateway Protocol (BGP).................................................................................................................177

BGP IP version 4 (BGPv4) Overview.......................................................................................................................... 177

BGP Autonomous Systems..................................................................................................................................... 177

AS4 Number Representation.................................................................................................................................. 179

Four-Byte AS Numbers............................................................................................................................................ 181

BGP router ID............................................................................................................................................................ 181

Sessions and Peers................................................................................................................................................... 181

Establish a Session................................................................................................................................................... 182

BGP Attributes for selecting Best Path.................................................................................................................182

Multiprotocol BGP.................................................................................................................................................... 187

BGP global and address family conguration........................................................................................................188

Implement BGP with Dell EMC Networking OS...................................................................................................190

Conguration Information........................................................................................................................................193

Basic BGP conguration tasks......................................................................................................................................193

Prerequisite for conguring a BGP network......................................................................................................... 193

Restrictions............................................................................................................................................................... 194

Enabling BGP............................................................................................................................................................ 194

Enabling four-byte autonomous system numbers................................................................................................196

Changing a BGP router ID....................................................................................................................................... 197

Conguring AS4 Number Representations........................................................................................................... 197

Conguring a BGP peer...........................................................................................................................................199

Example-Conguring BGP routing between peers............................................................................................. 200

BGP peer group........................................................................................................................................................201

Advanced BGP conguration tasks.............................................................................................................................207

Route-refresh and Soft-reconguration............................................................................................................... 208

Aggregating Routes..................................................................................................................................................210

Filtering BGP.............................................................................................................................................................212

Conguring BGP Fast Fall-Over.............................................................................................................................219

Conguring Passive Peering...................................................................................................................................220

Enabling Graceful Restart........................................................................................................................................221

Redistributing Routes..............................................................................................................................................222

Enabling Additional Paths........................................................................................................................................223

Conguring IP Community Lists............................................................................................................................ 224

Conguring an IP Extended Community List....................................................................................................... 225

Congure BGP attributes....................................................................................................................................... 226

Enabling Multipath...................................................................................................................................................230

Route Reectors.......................................................................................................................................................231

Enabling Route Flap Dampening............................................................................................................................ 232

Contents

7

Changing BGP keepalive and hold timers.............................................................................................................234

Setting the extended timer.................................................................................................................................... 235

Enabling or disabling BGP neighbors.....................................................................................................................236

Route Map Continue................................................................................................................................................237

Conguring BGP Confederations...........................................................................................................................237

Conguring a BGP VRF address family.................................................................................................................238

Maintaining Existing AS Numbers During an AS Migration................................................................................ 239

Allowing an AS Number to Appear in its Own AS Path...................................................................................... 240

Enabling MBGP Congurations.............................................................................................................................. 241

MBGP support for IPv6...........................................................................................................................................241

Conguring IPv6 MBGP between peers...............................................................................................................242

Example-Conguring IPv4 and IPv6 neighbors................................................................................................... 243

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 245

BGP Regular Expression Optimization.................................................................................................................. 247

Debugging BGP........................................................................................................................................................247

10 Content Addressable Memory (CAM)...................................................................................................... 250

CAM Allocation.............................................................................................................................................................. 250

Test CAM Usage............................................................................................................................................................252

View CAM-ACL Settings.............................................................................................................................................. 252

View CAM Usage...........................................................................................................................................................254

Conguring CAM Threshold and Silence Period........................................................................................................254

Setting CAM Threshold and Silence Period......................................................................................................... 254

CAM Optimization......................................................................................................................................................... 255

Troubleshoot CAM Proling..........................................................................................................................................255

QoS CAM Region Limitation.................................................................................................................................. 255

11 Control Plane Policing (CoPP).................................................................................................................. 257

Congure Control Plane Policing................................................................................................................................. 258

Conguring CoPP for Protocols............................................................................................................................ 259

Conguring CoPP for CPU Queues....................................................................................................................... 261

CoPP for OSPFv3 Packets.....................................................................................................................................262

Conguring CoPP for OSPFv3.............................................................................................................................. 265

Displaying CoPP Conguration .............................................................................................................................265

12 Dynamic Host Conguration Protocol (DHCP).........................................................................................268

DHCP Packet Format and Options............................................................................................................................. 268

Assign an IP Address using DHCP............................................................................................................................... 270

Implementation Information...........................................................................................................................................271

Congure the System to be a DHCP Server...............................................................................................................271

Conguring the Server for Automatic Address Allocation.................................................................................. 272

Specifying a Default Gateway................................................................................................................................ 273

Congure a Method of Hostname Resolution......................................................................................................274

Using DNS for Address Resolution........................................................................................................................ 274

Using NetBIOS WINS for Address Resolution......................................................................................................274

Creating Manual Binding Entries............................................................................................................................ 274

8

Contents

Debugging the DHCP Server................................................................................................................................. 275

Using DHCP Clear Commands...............................................................................................................................275

Congure the System to be a Relay Agent................................................................................................................ 275

Congure the System to be a DHCP Client................................................................................................................277

Conguring the DHCP Client System....................................................................................................................277

DHCP Client on a Management Interface............................................................................................................ 278

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

DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................ 280

Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 280

Non-default VRF conguration for DHCPv6 helper address....................................................................................281

Conguring DHCP relay source interface................................................................................................................... 282

Global DHCP relay source IPv4 or IPv6 conguration ....................................................................................... 282

Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................282

Congure the System for User Port Stacking (Option 230)....................................................................................284

Congure Secure DHCP............................................................................................................................................... 284

Option 82 (DHCPv4 relay options)........................................................................................................................284

DHCPv6 relay agent options..................................................................................................................................285

DHCP Snooping.......................................................................................................................................................285

Drop DHCP Packets on Snooped VLANs Only....................................................................................................290

Dynamic ARP Inspection........................................................................................................................................ 290

Conguring Dynamic ARP Inspection....................................................................................................................291

Source Address Validation............................................................................................................................................ 293

Enabling IP Source Address Validation.................................................................................................................. 293

DHCP MAC Source Address Validation................................................................................................................ 294

Enabling IP+MAC Source Address Validation.......................................................................................................294

Viewing the Number of SAV Dropped Packets................................................................................................... 295

Clearing the Number of SAV Dropped Packets...................................................................................................295

13 Equal Cost Multi-Path (ECMP)................................................................................................................ 296

ECMP for Flow-Based Anity.....................................................................................................................................296

Conguring the Hash Algorithm............................................................................................................................ 296

Enabling Deterministic ECMP Next Hop.............................................................................................................. 296

Conguring the Hash Algorithm Seed...................................................................................................................297

Link Bundle Monitoring..................................................................................................................................................297

Managing ECMP Group Paths...............................................................................................................................298

Creating an ECMP Group Bundle..........................................................................................................................298

Modifying the ECMP Group Threshold.................................................................................................................298

14 FIPS Cryptography...................................................................................................................................300

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

Preparing the System................................................................................................................................................... 300

Enabling FIPS Mode.......................................................................................................................................................301

Generating Host-Keys....................................................................................................................................................301

Monitoring FIPS Mode Status...................................................................................................................................... 301

Disabling FIPS Mode..................................................................................................................................................... 302

Contents

9

15 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 303

Protocol Overview.........................................................................................................................................................303

Ring Status............................................................................................................................................................... 304

Multiple FRRP Rings............................................................................................................................................... 304

Important FRRP Points...........................................................................................................................................305

Important FRRP Concepts.....................................................................................................................................306

Implementing FRRP.......................................................................................................................................................307

FRRP Conguration.......................................................................................................................................................307

Creating the FRRP Group.......................................................................................................................................307

Conguring the Control VLAN...............................................................................................................................308

Conguring and Adding the Member VLANs...................................................................................................... 309

Setting the FRRP Timers........................................................................................................................................ 310

Clearing the FRRP Counters...................................................................................................................................310

Viewing the FRRP Conguration............................................................................................................................310

Viewing the FRRP Information............................................................................................................................... 310

Troubleshooting FRRP.................................................................................................................................................... 311

Conguration Checks............................................................................................................................................... 311

Sample Conguration and Topology............................................................................................................................. 311

FRRP Support on VLT................................................................................................................................................... 312

Example Scenario..................................................................................................................................................... 313

Important Points to Remember.............................................................................................................................. 314

16 GARP VLAN Registration Protocol (GVRP).............................................................................................. 315

Important Points to Remember.................................................................................................................................... 315

Congure GVRP............................................................................................................................................................. 316

Related Conguration Tasks....................................................................................................................................316

Enabling GVRP Globally................................................................................................................................................. 317

Enabling GVRP on a Layer 2 Interface.........................................................................................................................317

Congure GVRP Registration....................................................................................................................................... 317

Congure a GARP Timer............................................................................................................................................... 318

RPM Redundancy...........................................................................................................................................................318

17 High Availability (HA)................................................................................................................................320

Component Redundancy.............................................................................................................................................. 320

Automatic and Manual Stack Unit Failover.......................................................................................................... 320

Synchronization between Management and Standby Units...............................................................................321

Forcing a Stack Unit Failover.................................................................................................................................. 321

Specifying an Auto-Failover Limit.......................................................................................................................... 322

Disabling Auto-Reboot............................................................................................................................................ 322

Pre-Conguring a Stack Unit Slot............................................................................................................................... 322

Removing a Provisioned Logical Stack Unit............................................................................................................... 322

Hitless Behavior............................................................................................................................................................. 322

Graceful Restart.............................................................................................................................................................323

Software Resiliency....................................................................................................................................................... 323

Software Component Health Monitoring............................................................................................................. 323

10

Contents

System Health Monitoring......................................................................................................................................323

Failure and Event Logging.......................................................................................................................................324

Hot-Lock Behavior.........................................................................................................................................................324

18 Internet Group Management Protocol (IGMP)......................................................................................... 325

IGMP Implementation Information.............................................................................................................................. 325

IGMP Protocol Overview..............................................................................................................................................325

IGMP Version 2........................................................................................................................................................ 325

IGMP Version 3........................................................................................................................................................ 327

Congure IGMP............................................................................................................................................................. 330

Related Conguration Tasks...................................................................................................................................330

Viewing IGMP Enabled Interfaces................................................................................................................................331

Selecting an IGMP Version............................................................................................................................................331

Viewing IGMP Groups...................................................................................................................................................332

Adjusting Timers............................................................................................................................................................ 332

Adjusting Query and Response Timers................................................................................................................. 332

Preventing a Host from Joining a Group.................................................................................................................... 333

Enabling IGMP Immediate-Leave.................................................................................................................................336

IGMP Snooping..............................................................................................................................................................336

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

Conguring IGMP Snooping...................................................................................................................................336

Removing a Group-Port Association..................................................................................................................... 337

Disabling Multicast Flooding................................................................................................................................... 337

Specifying a Port as Connected to a Multicast Router...................................................................................... 338

Conguring the Switch as Querier........................................................................................................................ 338

Fast Convergence after MSTP Topology Changes...................................................................................................339

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................339

Protocol Separation.................................................................................................................................................339

Enabling and Disabling Management Egress Interface Selection...................................................................... 340

Handling of Management Route Conguration....................................................................................................341

Handling of Switch-Initiated Trac....................................................................................................................... 342

Handling of Switch-Destined Trac......................................................................................................................342

Handling of Transit Trac (Trac Separation).................................................................................................... 343

Mapping of Management Applications and Trac Type.....................................................................................343

Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 344

Behavior of Various Applications for Switch-Destined Trac ...........................................................................345

Interworking of EIS With Various Applications.....................................................................................................346

Designating a Multicast Router Interface...................................................................................................................346

19 Interfaces................................................................................................................................................. 348

Basic Interface Conguration.......................................................................................................................................348

Advanced Interface Conguration...............................................................................................................................348

Interface Types...............................................................................................................................................................349

View Basic Interface Information.................................................................................................................................349

Resetting an Interface to its Factory Default State................................................................................................... 351

Enabling a Physical Interface.........................................................................................................................................351

Contents

11

Enabling Energy Ecient Ethernet..............................................................................................................................352

View EEE Information................................................................................................................................................... 352

Clear EEE Counters....................................................................................................................................................... 357

Physical Interfaces.........................................................................................................................................................357

Conguration Task List for Physical Interfaces.................................................................................................... 357

Overview of Layer Modes...................................................................................................................................... 358

Conguring Layer 2 (Data Link) Mode..................................................................................................................358

Conguring Layer 2 (Interface) Mode.................................................................................................................. 359

Conguring Layer 3 (Network) Mode...................................................................................................................359

Conguring Layer 3 (Interface) Mode.................................................................................................................. 359

Automatic recovery of an Err-disabled interface.......................................................................................................360

Conguring an automatic recovery for an Err-disabled interface...................................................................... 361

Egress Interface Selection (EIS)...................................................................................................................................361

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

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

Management Interfaces................................................................................................................................................362

Conguring Management Interfaces.....................................................................................................................362

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

VLAN Interfaces............................................................................................................................................................ 364

Loopback Interfaces......................................................................................................................................................365

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

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

Port Channel Denition and Standards.................................................................................................................366

Port Channel Benets.............................................................................................................................................366

Port Channel Implementation.................................................................................................................................366

Interfaces in Port Channels.................................................................................................................................... 367

Conguration Tasks for Port Channel Interfaces.................................................................................................367

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

Adding a Physical Interface to a Port Channel.....................................................................................................368

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

Conguring the Minimum Oper Up Links in a Port Channel...............................................................................370

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

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

Deleting or Disabling a Port Channel..................................................................................................................... 372

Load Balancing Through Port Channels................................................................................................................372

Changing the Hash Algorithm................................................................................................................................ 373

Bulk Conguration..........................................................................................................................................................374

Interface Range........................................................................................................................................................374

Bulk Conguration Examples.................................................................................................................................. 374

Dening Interface Range Macros................................................................................................................................ 376

Dene the Interface Range.....................................................................................................................................376

Choosing an Interface-Range Macro.................................................................................................................... 376

Monitoring and Maintaining Interfaces........................................................................................................................376

Maintenance Using TDR..........................................................................................................................................377

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................ 378

12

Contents

Link Dampening..............................................................................................................................................................378

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

Conguration Example of Link Dampening...........................................................................................................379

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

Link Bundle Monitoring................................................................................................................................................. 382

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

Enabling Pause Frames........................................................................................................................................... 383

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

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

Auto-Negotiation on Ethernet Interfaces...................................................................................................................385

Setting the Speed of Ethernet Interfaces............................................................................................................385

Set Auto-Negotiation Options............................................................................................................................... 386

View Advanced Interface Information......................................................................................................................... 387

Conguring the Interface Sampling Size.............................................................................................................. 388

Conguring the Trac Sampling Size Globally...........................................................................................................389

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

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

Discard Counters............................................................................................................................................................ 391

Display discard counters.......................................................................................................................................... 391

20 Internet Protocol Security (IPSec).......................................................................................................... 394

Conguring IPSec .........................................................................................................................................................394

21 IPv4 Routing............................................................................................................................................ 396

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

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

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

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

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

Adding description for IPv4 and IPv6 static routes.............................................................................................399

Congure Static Routes for the Management Interface..........................................................................................400

IPv4 Path MTU Discovery Overview.......................................................................................................................... 400

Packet handling during MTU mismatch.................................................................................................................401

Using the Congured Source IP Address in ICMP Messages...................................................................................401

Conguring the ICMP Source Interface................................................................................................................401

Conguring the Duration to Establish a TCP Connection.........................................................................................401

Enabling Directed Broadcast........................................................................................................................................ 402

Resolution of Host Names............................................................................................................................................402

Enabling Dynamic Resolution of Host Names............................................................................................................403

Specifying the Local System Domain and a List of Domains................................................................................... 403

Conguring DNS with Traceroute............................................................................................................................... 404

ARP................................................................................................................................................................................. 404

Conguration Tasks for ARP........................................................................................................................................ 405

Conguring Static ARP Entries....................................................................................................................................405

Enabling Proxy ARP.......................................................................................................................................................405

Clearing ARP Cache......................................................................................................................................................406

Contents

13

ARP Learning via Gratuitous ARP............................................................................................................................... 406

Enabling ARP Learning via Gratuitous ARP................................................................................................................406

ARP Learning via ARP Request................................................................................................................................... 406

Conguring ARP Retries............................................................................................................................................... 407

ICMP............................................................................................................................................................................... 408

Conguration Tasks for ICMP......................................................................................................................................408

Enabling ICMP Unreachable Messages...................................................................................................................... 408

ICMP Redirects..............................................................................................................................................................408

UDP Helper.....................................................................................................................................................................409

Congure UDP Helper............................................................................................................................................ 409

Important Points to Remember.............................................................................................................................. 410

Enabling UDP Helper......................................................................................................................................................410

Congurations Using UDP Helper................................................................................................................................ 410

UDP Helper with Broadcast-All Addresses................................................................................................................. 410

UDP Helper with Subnet Broadcast Addresses.......................................................................................................... 411

UDP Helper with Congured Broadcast Addresses...................................................................................................412

UDP Helper with No Congured Broadcast Addresses.............................................................................................412

Troubleshooting UDP Helper.........................................................................................................................................412

22 IPv6 Routing.............................................................................................................................................414

Protocol Overview..........................................................................................................................................................414

Extended Address Space........................................................................................................................................ 415

Stateless Autoconguration....................................................................................................................................415

IPv6 Headers.............................................................................................................................................................415

IPv6 Header Fields................................................................................................................................................... 416

Extension Header Fields.......................................................................................................................................... 418

Addressing.................................................................................................................................................................419

Implementing IPv6 with Dell EMC Networking OS................................................................................................... 420

ICMPv6............................................................................................................................................................................421

Path MTU discovery......................................................................................................................................................422

IPv6 Neighbor Discovery.............................................................................................................................................. 422

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................423

Conguration Task List for IPv6 RDNSS.................................................................................................................... 423

Conguring the IPv6 Recursive DNS Server....................................................................................................... 423

Debugging IPv6 RDNSS Information Sent to the Host ..................................................................................... 424

Displaying IPv6 RDNSS Information......................................................................................................................425

Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 425

Conguration Tasks for IPv6........................................................................................................................................ 426

Adjusting Your CAM-Prole....................................................................................................................................426

Assigning an IPv6 Address to an Interface........................................................................................................... 427

Assigning a Static IPv6 Route................................................................................................................................ 427

Conguring Telnet with IPv6..................................................................................................................................428

SNMP over IPv6......................................................................................................................................................428

Displaying IPv6 Information.................................................................................................................................... 428

Displaying an IPv6 Interface Information.............................................................................................................. 429

Showing IPv6 Routes..............................................................................................................................................429

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Contents

Showing the Running-Conguration for an Interface..........................................................................................431

Clearing IPv6 Routes................................................................................................................................................431

Disabling ND Entry Timeout.................................................................................................................................... 431

Conguring IPv6 RA Guard.......................................................................................................................................... 432

Conguring IPv6 RA Guard on an Interface.........................................................................................................433

Monitoring IPv6 RA Guard......................................................................................................................................434

23 Intermediate System to Intermediate System.......................................................................................... 435

IS-IS Protocol Overview............................................................................................................................................... 435

IS-IS Addressing.............................................................................................................................................................435

Multi-Topology IS-IS...................................................................................................................................................... 436

Transition Mode....................................................................................................................................................... 436

Interface Support.....................................................................................................................................................437

Adjacencies...............................................................................................................................................................437

Graceful Restart.............................................................................................................................................................437

Timers........................................................................................................................................................................437

Implementation Information..........................................................................................................................................437

Conguration Information.............................................................................................................................................438

Conguration Tasks for IS-IS..................................................................................................................................439

Conguring the Distance of a Route.....................................................................................................................446

Changing the IS-Type.............................................................................................................................................. 447

Redistributing IPv4 Routes.....................................................................................................................................449

Redistributing IPv6 Routes.....................................................................................................................................450

Conguring Authentication Passwords..................................................................................................................451

Setting the Overload Bit..........................................................................................................................................451

Debugging IS-IS....................................................................................................................................................... 452

IS-IS Metric Styles.........................................................................................................................................................453

Congure Metric Values............................................................................................................................................... 453

Maximum Values in the Routing Table.................................................................................................................. 453

Change the IS-IS Metric Style in One Level Only................................................................................................453

Leaks from One Level to Another..........................................................................................................................455

Sample Congurations..................................................................................................................................................456

24 Link Aggregation Control Protocol (LACP).............................................................................................. 458

Introduction to Dynamic LAGs and LACP.................................................................................................................. 458

Important Points to Remember............................................................................................................................. 458

LACP Modes............................................................................................................................................................ 459

Conguring LACP Commands...............................................................................................................................459

LACP Conguration Tasks............................................................................................................................................460

Creating a LAG.........................................................................................................................................................460

Conguring the LAG Interfaces as Dynamic........................................................................................................460

Setting the LACP Long Timeout............................................................................................................................ 461

Monitoring and Debugging LACP...........................................................................................................................461

Shared LAG State Tracking.......................................................................................................................................... 462

Conguring Shared LAG State Tracking............................................................................................................... 462

Important Points about Shared LAG State Tracking........................................................................................... 464

Contents

15

LACP Basic Conguration Example............................................................................................................................ 464

Congure a LAG on ALPHA................................................................................................................................... 464

25 Layer 2.....................................................................................................................................................473

Manage the MAC Address Table..................................................................................................................................473

Clearing the MAC Address Table........................................................................................................................... 473

Setting the Aging Time for Dynamic Entries........................................................................................................ 473

Conguring a Static MAC Address........................................................................................................................ 474

Displaying the MAC Address Table.........................................................................................................................474

MAC Learning Limit....................................................................................................................................................... 474

Setting the MAC Learning Limit.............................................................................................................................475

mac learning-limit Dynamic.....................................................................................................................................475

mac learning-limit mac-address-sticky................................................................................................................. 475

mac learning-limit station-move.............................................................................................................................476

mac learning-limit no-station-move.......................................................................................................................476

Learning Limit Violation Actions............................................................................................................................. 476

Setting Station Move Violation Actions.................................................................................................................477

Recovering from Learning Limit and Station Move Violations............................................................................477

Disabling MAC Address Learning on the System.................................................................................................478

Enabling port security..............................................................................................................................................478

NIC Teaming................................................................................................................................................................... 478

Congure Redundant Pairs...........................................................................................................................................479

Important Points about Conguring Redundant Pairs......................................................................................... 481

Far-End Failure Detection............................................................................................................................................. 482

FEFD State Changes...............................................................................................................................................483

Conguring FEFD.................................................................................................................................................... 484

Enabling FEFD on an Interface...............................................................................................................................484

Debugging FEFD......................................................................................................................................................485

26 Link Layer Discovery Protocol (LLDP)......................................................................................................487

802.1AB (LLDP) Overview............................................................................................................................................487

Protocol Data Units..................................................................................................................................................487

Optional TLVs................................................................................................................................................................. 488

Management TLVs.................................................................................................................................................. 488

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 490

TIA Organizationally Specic TLVs........................................................................................................................ 490

Congure LLDP..............................................................................................................................................................494

Related Conguration Tasks...................................................................................................................................494

Important Points to Remember............................................................................................................................. 494

LLDP Compatibility..................................................................................................................................................495

CONFIGURATION versus INTERFACE Congurations............................................................................................ 495

Enabling LLDP................................................................................................................................................................495

Disabling and Undoing LLDP.................................................................................................................................. 496

Enabling LLDP on Management Ports........................................................................................................................496

Disabling and Undoing LLDP on Management Ports..........................................................................................496

Advertising TLVs............................................................................................................................................................ 496

16

Contents

Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................498

Reserved Unrecognized LLDP TLVs..................................................................................................................... 498

Organizational Specic Unrecognized LLDP TLVs..............................................................................................498

Viewing Unrecognized LLDP TLVs........................................................................................................................ 498

Viewing the LLDP Conguration................................................................................................................................. 499

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................499

Examples of Viewing Information Advertised by Neighbors.............................................................................. 499

Conguring LLDPDU Intervals.....................................................................................................................................502

Conguring LLDP Notication Interval....................................................................................................................... 503

Conguring Transmit and Receive Mode....................................................................................................................503

Conguring the Time to Live Value............................................................................................................................. 504

Debugging LLDP............................................................................................................................................................505

Relevant Management Objects................................................................................................................................... 506

27 Microsoft Network Load Balancing............................................................................................................511

NLB Unicast Mode Scenario..........................................................................................................................................511

NLB Multicast Mode Scenario.......................................................................................................................................511

Limitations of the NLB Feature.....................................................................................................................................512

Microsoft Clustering.......................................................................................................................................................512

Enable and Disable VLAN Flooding ............................................................................................................................. 512

Conguring a Switch for NLB ......................................................................................................................................512

Enabling a Switch for Multicast NLB..................................................................................................................... 513

28 Multicast Source Discovery Protocol (MSDP)..........................................................................................514

Protocol Overview..........................................................................................................................................................514

Anycast RP......................................................................................................................................................................515

Implementation Information.......................................................................................................................................... 516

Congure Multicast Source Discovery Protocol.........................................................................................................516

Related Conguration Tasks....................................................................................................................................516

Enable MSDP................................................................................................................................................................. 520

Manage the Source-Active Cache...............................................................................................................................521

Viewing the Source-Active Cache......................................................................................................................... 521

Limiting the Source-Active Cache..........................................................................................................................521

Clearing the Source-Active Cache........................................................................................................................ 522

Enabling the Rejected Source-Active Cache....................................................................................................... 522

Accept Source-Active Messages that Fail the RFP Check......................................................................................522

Specifying Source-Active Messages...........................................................................................................................525

Limiting the Source-Active Messages from a Peer...................................................................................................526

Preventing MSDP from Caching a Local Source.......................................................................................................526

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

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

Logging Changes in Peership States...........................................................................................................................528

Terminating a Peership..................................................................................................................................................528

Clearing Peer Statistics.................................................................................................................................................529

Debugging MSDP.......................................................................................................................................................... 529

Contents

17

MSDP with Anycast RP................................................................................................................................................530

Conguring Anycast RP................................................................................................................................................ 531

Reducing Source-Active Message Flooding.........................................................................................................532

Specifying the RP Address Used in SA Messages.............................................................................................. 532

MSDP Sample Congurations......................................................................................................................................534

29 Multicast Listener Discovery Protocol......................................................................................................537

MLD Version 1.................................................................................................................................................................537

MLD Querier Router...................................................................................................................................................... 537

Joining a Multicast Group.............................................................................................................................................538

Leaving a Multicast Group............................................................................................................................................538

MLD version 2................................................................................................................................................................538

MLD timers.....................................................................................................................................................................540

Reducing Host Response Burstiness..................................................................................................................... 541

Conguring MLD Version.............................................................................................................................................. 541

Clearing MLD groups..................................................................................................................................................... 541

Debugging MLD..............................................................................................................................................................541

Explicit Tracking..............................................................................................................................................................541

Reducing Leave Latency...............................................................................................................................................542

Displaying MLD groups table........................................................................................................................................542

Displaying MLD Interfaces............................................................................................................................................542

MLD Snooping............................................................................................................................................................... 542

Enable MLD Snooping.............................................................................................................................................543

Disable MLD Snooping............................................................................................................................................543

Congure the switch as a querier..........................................................................................................................543

Specify port as connected to multicast router.................................................................................................... 543

Enable Snooping Explicit Tracking......................................................................................................................... 544

Display the MLD Snooping Table........................................................................................................................... 544

30 Multiple Spanning Tree Protocol (MSTP)................................................................................................ 545

Protocol Overview.........................................................................................................................................................545

Spanning Tree Variations.............................................................................................................................................. 546

Implementation Information................................................................................................................................... 546

Congure Multiple Spanning Tree Protocol................................................................................................................546

Related Conguration Tasks................................................................................................................................... 547

Enable Multiple Spanning Tree Globally.......................................................................................................................547

Adding and Removing Interfaces.................................................................................................................................547

Creating Multiple Spanning Tree Instances................................................................................................................ 548

Inuencing MSTP Root Selection................................................................................................................................549

Interoperate with Non-Dell Bridges.............................................................................................................................549

Changing the Region Name or Revision.....................................................................................................................550

Modifying Global Parameters.......................................................................................................................................550

Modifying the Interface Parameters............................................................................................................................ 551

Setting STP path cost as constant.............................................................................................................................552

Conguring an EdgePort.............................................................................................................................................. 553

Flush MAC Addresses after a Topology Change....................................................................................................... 553

18

Contents

MSTP Sample Congurations......................................................................................................................................554

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

CongurationSFTOS Example Running-Conguration.......................................................................................554

Debugging and Verifying MSTP Congurations........................................................................................................ 557

31 Multicast Features................................................................................................................................... 559

Enabling IP Multicast.....................................................................................................................................................559

Implementation Information......................................................................................................................................... 559

Multicast Policies...........................................................................................................................................................560

IPv4 Multicast Policies............................................................................................................................................560

Understanding Multicast Traceroute (mtrace)...........................................................................................................567

Important Points to Remember............................................................................................................................. 568

Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 568

Supported Error Codes.................................................................................................................................................569

mtrace Scenarios........................................................................................................................................................... 570

32 Object Tracking........................................................................................................................................576

Object Tracking Overview.............................................................................................................................................576

Track Layer 2 Interfaces.......................................................................................................................................... 577

Track Layer 3 Interfaces.......................................................................................................................................... 577

Track IPv4 and IPv6 Routes................................................................................................................................... 578

Set Tracking Delays................................................................................................................................................. 579

VRRP Object Tracking.............................................................................................................................................579

Object Tracking Conguration......................................................................................................................................579

Tracking a Layer 2 Interface................................................................................................................................... 579

Tracking a Layer 3 Interface................................................................................................................................... 580

Track an IPv4/IPv6 Route...................................................................................................................................... 582

Displaying Tracked Objects...........................................................................................................................................586

33 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................588

Protocol Overview.........................................................................................................................................................588

Autonomous System (AS) Areas........................................................................................................................... 588

Area Types................................................................................................................................................................ 589

Networks and Neighbors........................................................................................................................................590

Router Types............................................................................................................................................................ 590

Designated and Backup Designated Routers....................................................................................................... 592

Link-State Advertisements (LSAs)........................................................................................................................592

Router Priority and Cost.........................................................................................................................................593

OSPF with Dell EMC Networking OS.........................................................................................................................594

Graceful Restart...................................................................................................................................................... 595

Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................596

Multi-Process OSPFv2 with VRF..........................................................................................................................596

OSPF ACK Packing................................................................................................................................................. 596

Setting OSPF Adjacency with Cisco Routers...................................................................................................... 596

Conguration Information.............................................................................................................................................597

Conguration Task List for OSPFv2 (OSPF for IPv4).........................................................................................597

Contents

19

OSPFv3 NSSA.................................................................................................................................................................611

NSSA Options............................................................................................................................................................611

Conguration Task List for OSPFv3 (OSPF for IPv6)............................................................................................... 612

Enabling IPv6 Unicast Routing............................................................................................................................... 612

Applying cost for OSPFv3.......................................................................................................................................613

Assigning IPv6 Addresses on an Interface............................................................................................................ 613

Assigning Area ID on an Interface...........................................................................................................................613

Assigning OSPFv3 Process ID and Router ID Globally.........................................................................................614

Assigning OSPFv3 Process ID and Router ID to a VRF.......................................................................................614

Conguring Stub Areas............................................................................................................................................615

Conguring Passive-Interface................................................................................................................................ 615

Redistributing Routes.............................................................................................................................................. 615

Conguring a Default Route....................................................................................................................................616

Enabling OSPFv3 Graceful Restart........................................................................................................................616

OSPFv3 Authentication Using IPsec......................................................................................................................618

Troubleshooting OSPFv3........................................................................................................................................ 624

MIB Support for OSPFv3....................................................................................................................................... 626

34 Policy-based Routing (PBR).................................................................................................................... 627

Overview.........................................................................................................................................................................627

Implementing PBR.........................................................................................................................................................628

Conguration Task List for Policy-based Routing......................................................................................................628

PBR Exceptions (Permit)....................................................................................................................................... 628

Create a Redirect List..............................................................................................................................................629

Create a Rule for a Redirect-list.............................................................................................................................629

Apply a Redirect-list to an Interface using a Redirect-group.............................................................................. 631

Sample Conguration....................................................................................................................................................633

Create the Redirect-List GOLDAssign Redirect-List GOLD to Interface 2/11View Redirect-List GOLD......634

35 PIM Sparse-Mode (PIM-SM).................................................................................................................. 637

Implementation Information..........................................................................................................................................637

Protocol Overview......................................................................................................................................................... 637

Requesting Multicast Trac...................................................................................................................................637

Refuse Multicast Trac..........................................................................................................................................638

Send Multicast Trac............................................................................................................................................. 638

Conguring PIM-SM..................................................................................................................................................... 638

Related Conguration Tasks...................................................................................................................................639

Enable PIM-SM..............................................................................................................................................................639

Conguring S,G Expiry Timers......................................................................................................................................641

Conguring a Static Rendezvous Point.......................................................................................................................641

Overriding Bootstrap Router Updates.................................................................................................................. 642

Conguring a Designated Router.................................................................................................................................642

Creating Multicast Boundaries and Domains............................................................................................................. 644

Electing an RP using the BSR Mechanism.................................................................................................................644

36 PIM Source-Specic Mode (PIM-SSM).................................................................................................. 646

20

Contents

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Dell PowerSwitch S3048-ON Quick start guide

Dell PowerSwitch S3048-ON Quick start guide

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