Dell PowerSwitch Z9100-ON Owner's manual

Dell EMC Networking OS Conguration Guide for

the Z9100–ON System

9.14.1.0

Notes, cautions, and warnings

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

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

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

may be trademarks of their respective owners.

2018 - 11

Rev. A00

Contents

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Conguring alias command.............................................................................................................................................46

Viewing alias conguration........................................................................................................................................47

3 Getting Started............................................................................................................................................49

Console Access................................................................................................................................................................50

Serial Console.............................................................................................................................................................50

Micro USB-B Access..................................................................................................................................................51

Default Conguration...................................................................................................................................................... 52

Conguring a Host Name............................................................................................................................................... 52

Accessing the System Remotely....................................................................................................................................52

Accessing the System Remotely..............................................................................................................................52

Congure the Management Port IP Address......................................................................................................... 52

Congure a Management Route..............................................................................................................................53

Conguring a Username and Password.................................................................................................................. 53

Conguring the Enable Password..................................................................................................................................54

Conguration File Management.....................................................................................................................................54

Copy Files to and from the System......................................................................................................................... 54

Mounting an NFS File System..................................................................................................................................55

Save the Running-Conguration..............................................................................................................................57

Congure the Overload Bit for a Startup Scenario................................................................................................57

Viewing Files............................................................................................................................................................... 57

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

View Command History.................................................................................................................................................. 59

Upgrading Dell EMC Networking OS............................................................................................................................ 59

Using HTTP for File Transfers........................................................................................................................................ 59

Contents

3

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

4 Management................................................................................................................................................62

Conguring Privilege Levels............................................................................................................................................62

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

Removing a Command from EXEC Mode.............................................................................................................. 63

Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................63

Allowing Access to CONFIGURATION Mode Commands....................................................................................63

Allowing Access to Dierent Modes........................................................................................................................63

Applying a Privilege Level to a Username...............................................................................................................65

Applying a Privilege Level to a Terminal Line.......................................................................................................... 65

Conguring Logging........................................................................................................................................................ 65

Audit and Security Logs............................................................................................................................................ 66

Conguring Logging Format ...................................................................................................................................67

Setting Up a Secure Connection to a Syslog Server.............................................................................................67

Log Messages in the Internal Buer..............................................................................................................................69

Conguration Task List for System Log Management..........................................................................................69

Disabling System Logging............................................................................................................................................... 69

Sending System Messages to a Syslog Server............................................................................................................69

Conguring a UNIX System as a Syslog Server.....................................................................................................69

Track Login Activity..........................................................................................................................................................70

Restrictions for Tracking Login Activity...................................................................................................................70

Conguring Login Activity Tracking......................................................................................................................... 70

Display Login Statistics...............................................................................................................................................71

Limit Concurrent Login Sessions....................................................................................................................................72

Restrictions for Limiting the Number of Concurrent Sessions.............................................................................72

Conguring Concurrent Session Limit.....................................................................................................................72

Enabling the System to Clear Existing Sessions.................................................................................................... 73

Enabling Secured CLI Mode............................................................................................................................................74

Changing System Logging Settings............................................................................................................................... 74

Display the Logging Buer and the Logging Conguration........................................................................................75

Conguring a UNIX Logging Facility Level....................................................................................................................75

Synchronizing Log Messages......................................................................................................................................... 76

Enabling Timestamp on Syslog Messages.................................................................................................................... 77

File Transfer Services.......................................................................................................................................................77

Conguration Task List for File Transfer Services.................................................................................................. 77

Enabling the FTP Server........................................................................................................................................... 78

Conguring FTP Server Parameters........................................................................................................................78

Conguring FTP Client Parameters......................................................................................................................... 78

Terminal Lines................................................................................................................................................................... 79

Denying and Permitting Access to a Terminal Line................................................................................................79

Conguring Login Authentication for Terminal Lines.............................................................................................80

Setting Timeout for EXEC Privilege Mode....................................................................................................................81

Using Telnet to get to Another Network Device..........................................................................................................82

Lock CONFIGURATION Mode....................................................................................................................................... 82

Viewing the Conguration Lock Status...................................................................................................................82

4

Contents

Reloading the system...................................................................................................................................................... 83

Restoring the Factory Default Settings.........................................................................................................................84

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

Restoring Factory Default Environment Variables................................................................................................. 84

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

Disabling Syslog Messages for SNMP Authentication Failure Events...................................................................... 85

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

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

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

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

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

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

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

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

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

Conguring Critical VLAN ..............................................................................................................................................92

Conguring MAC addresses for a do1x Prole.............................................................................................................93

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ACL Optimization to Increase Number of Supported IPv4 ACLs.............................................................................105

Restrictions for ACL Optimization..........................................................................................................................106

Optimizing ACL for More Number of IPv4 ACL Rules.........................................................................................106

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

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

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

Implementing ACLs on Dell EMC Networking OS................................................................................................ 110

Congure ACL Range Proles........................................................................................................................................111

Important Points to Remember..................................................................................................................................... 112

Contents

5

Conguration Task List for Route Maps.................................................................................................................112

Conguring Match Routes.......................................................................................................................................115

Conguring Set Conditions......................................................................................................................................116

Congure a Route Map for Route Redistribution..................................................................................................117

Congure a Route Map for Route Tagging............................................................................................................ 117

Continue Clause........................................................................................................................................................ 118

IP Fragment Handling..................................................................................................................................................... 118

IP Fragments ACL Examples................................................................................................................................... 118

Layer 4 ACL Rules Examples................................................................................................................................... 119

Congure a Standard IP ACL........................................................................................................................................120

Conguring a Standard IP ACL Filter......................................................................................................................121

Congure an Extended IP ACL......................................................................................................................................121

Conguring Filters with a Sequence Number....................................................................................................... 122

Conguring Filters Without a Sequence Number.................................................................................................124

Congure Layer 2 and Layer 3 ACLs............................................................................................................................125

Assign an IP ACL to an Interface..................................................................................................................................126

Applying an IP ACL.........................................................................................................................................................126

Counting ACL Hits.................................................................................................................................................... 127

Congure Ingress ACLs..................................................................................................................................................127

Congure Egress ACLs.................................................................................................................................................. 127

Applying Egress Layer 3 ACLs (Control-Plane).................................................................................................... 128

Conguring UDF ACL.................................................................................................................................................... 129

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

8 Bidirectional Forwarding Detection (BFD).................................................................................................. 140

How BFD Works............................................................................................................................................................. 140

BFD Packet Format.................................................................................................................................................. 141

BFD Sessions............................................................................................................................................................ 142

BFD Three-Way Handshake.................................................................................................................................... 143

Session State Changes............................................................................................................................................145

Important Points to Remember.................................................................................................................................... 145

Congure BFD................................................................................................................................................................ 145

Congure BFD for Physical Ports...........................................................................................................................146

Congure BFD for Static Routes............................................................................................................................147

Congure BFD for IPv6 Static Routes....................................................................................................................151

Congure BFD for OSPF.........................................................................................................................................153

Congure BFD for OSPFv3.....................................................................................................................................158

6

Contents

Congure BFD for IS-IS............................................................................................................................................161

Congure BFD for BGP........................................................................................................................................... 163

Congure BFD for VRRP..........................................................................................................................................171

Conguring Protocol Liveness................................................................................................................................ 173

9 Border Gateway Protocol (BGP).................................................................................................................174

BGP IP version 4 (BGPv4) Overview.......................................................................................................................... 174

BGP Autonomous Systems........................................................................................................................................... 175

AS4 Number Representation.................................................................................................................................. 176

Four-Byte AS Numbers............................................................................................................................................178

Multiprotocol BGP.......................................................................................................................................................... 178

Sessions and Peers.........................................................................................................................................................179

Establish a Session................................................................................................................................................... 179

BGP global and address family conguration..............................................................................................................180

BGP global conguration default values................................................................................................................180

BGP Attributes for selecting Best Path........................................................................................................................181

Best Path Selection Criteria.....................................................................................................................................181

Weight........................................................................................................................................................................183

Local Preference.......................................................................................................................................................183

Multi-Exit Discriminators (MEDs)...........................................................................................................................184

Origin..........................................................................................................................................................................185

AS Path......................................................................................................................................................................186

Next Hop................................................................................................................................................................... 186

Implement BGP with Dell EMC Networking OS.........................................................................................................186

Additional Path (Add-Path) Support......................................................................................................................186

Advertise IGP Cost as MED for Redistributed Routes.........................................................................................187

Ignore Router-ID in Best-Path Calculation.............................................................................................................187

AS Number Migration...............................................................................................................................................187

BGP4 Management Information Base (MIB)........................................................................................................188

Important Points to Remember.............................................................................................................................. 188

Conguration Information..............................................................................................................................................189

Basic BGP conguration tasks..................................................................................................................................... 190

Enabling BGP............................................................................................................................................................ 190

Conguring a BGP peer...........................................................................................................................................192

Conguring AS4 Number Representations........................................................................................................... 193

Conguring a BGP VRF address family.................................................................................................................195

Route-refresh and Soft-reconguration................................................................................................................196

Aggregating Routes..................................................................................................................................................199

Filtering BGP Routes...............................................................................................................................................200

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

Filtering BGP Routes Using AS-PATH Information.............................................................................................. 201

Conguring Peer Groups........................................................................................................................................ 202

Conguring BGP Fast Fall-Over.............................................................................................................................210

Conguring Passive Peering.................................................................................................................................... 211

Maintaining Existing AS Numbers During an AS Migration................................................................................. 212

Allowing an AS Number to Appear in its Own AS Path....................................................................................... 213

Contents

7

Enabling Graceful Restart........................................................................................................................................214

Filtering on an AS-Path Attribute........................................................................................................................... 215

Regular Expressions as Filters.................................................................................................................................216

Redistributing Routes...............................................................................................................................................217

Redistributing iBGP Routes into IGP......................................................................................................................218

Enabling Additional Paths........................................................................................................................................ 221

Conguring IP Community Lists............................................................................................................................. 221

Conguring an IP Extended Community List....................................................................................................... 223

Filtering Routes with Community Lists................................................................................................................. 223

Manipulating the COMMUNITY Attribute............................................................................................................ 224

Changing MED Attributes.......................................................................................................................................226

Changing the LOCAL_PREFERENCE Attribute..................................................................................................226

Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes.............227

Changing the WEIGHT Attribute........................................................................................................................... 227

Enabling Multipath...................................................................................................................................................228

Route Reectors...................................................................................................................................................... 228

Conguring BGP Confederations.......................................................................................................................... 230

Enabling Route Flap Dampening............................................................................................................................ 230

Changing BGP keepalive and hold timers.............................................................................................................232

Setting the extended timer.....................................................................................................................................233

Enabling or disabling BGP neighbors.....................................................................................................................234

Route Map Continue............................................................................................................................................... 235

Enabling MBGP Congurations................................................................................................................................... 236

MBGP support for IPv6................................................................................................................................................236

Conguring IPv6 MBGP between peers.................................................................................................................... 236

Example-Conguring IPv4 and IPv6 neighbors..........................................................................................................237

Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor............................................... 239

BGP Regular Expression Optimization.........................................................................................................................241

Debugging BGP.............................................................................................................................................................. 241

Storing Last and Bad PDUs....................................................................................................................................242

Capturing PDUs....................................................................................................................................................... 243

PDU Counters.......................................................................................................................................................... 244

10 Content Addressable Memory (CAM).......................................................................................................245

CAM Allocation...............................................................................................................................................................245

Test CAM Usage............................................................................................................................................................ 247

View CAM-ACL Settings...............................................................................................................................................247

View CAM Usage...........................................................................................................................................................248

Conguring CAM Threshold and Silence Period........................................................................................................249

Setting CAM Threshold and Silence Period......................................................................................................... 249

CAM Optimization......................................................................................................................................................... 250

Troubleshoot CAM Proling..........................................................................................................................................250

QoS CAM Region Limitation.................................................................................................................................. 250

Syslog Error When the Table is Full........................................................................................................................ 251

Syslog Warning Upon 90 Percent Utilization of CAM..........................................................................................251

Syslog Warning for Discrepancies Between Congured Extended Prexes.....................................................251

8

Contents

Unied Forwarding Table (UFT) Modes...................................................................................................................... 251

Conguring UFT Modes..........................................................................................................................................252

IPv6 CAM ACL Region..................................................................................................................................................252

Important Points to Remember............................................................................................................................. 252

Convert the IPv6 ACL CAM to Double-Wide.......................................................................................................253

Sharing CAM space between IPv4 QoS and IPv6 ACLs.................................................................................... 253

11 Control Plane Policing (CoPP).................................................................................................................. 255

Congure Control Plane Policing................................................................................................................................. 256

Conguring CoPP for Protocols.............................................................................................................................257

Conguring CoPP for CPU Queues...................................................................................................................... 259

Protocol to CPU Queue Mapping..........................................................................................................................260

Conguring Protocol to CPU Queue Mapping.....................................................................................................260

Displaying CoPP Conguration ..............................................................................................................................261

12 Data Center Bridging (DCB).....................................................................................................................263

Ethernet Enhancements in Data Center Bridging..................................................................................................... 263

Priority-Based Flow Control................................................................................................................................... 264

Enhanced Transmission Selection..........................................................................................................................265

Data Center Bridging Exchange Protocol (DCBx)...............................................................................................266

Data Center Bridging in a Trac Flow...................................................................................................................267

Buer Organization..................................................................................................................................................267

Enabling Data Center Bridging.....................................................................................................................................269

DCB Maps and its Attributes..................................................................................................................................270

Data Center Bridging: Default Conguration..............................................................................................................270

Conguring Priority-Based Flow Control..................................................................................................................... 271

Conguring Lossless Queues..................................................................................................................................272

Conguring PFC in a DCB Map....................................................................................................................................273

PFC Conguration Notes........................................................................................................................................273

PFC Prerequisites and Restrictions....................................................................................................................... 274

Applying a DCB Map on a Port.....................................................................................................................................274

Conguring PFC without a DCB Map.........................................................................................................................275

Conguring PFC Asymmetric.......................................................................................................................................275

Priority-Based Flow Control Using Dynamic Buer Method....................................................................................276

Pause and Resume of Trac..................................................................................................................................276

Buer Sizes for Lossless or PFC Packets.............................................................................................................276

Shared headroom for lossless or PFC packets...........................................................................................................277

Example Scenario.....................................................................................................................................................277

Conguring Shared Head Room Buer.................................................................................................................279

Viewing Shared Head Room Usage.......................................................................................................................279

Monitoring Buer Statistics for Tracking Purposes.............................................................................................279

Behavior of Tagged Packets.........................................................................................................................................280

Conguration Example for DSCP and PFC Priorities................................................................................................280

SNMP Support for PFC and Buer Statistics Tracking............................................................................................ 281

Performing PFC Using DSCP Bits Instead of 802.1p Bits..........................................................................................281

PFC and ETS Conguration Examples........................................................................................................................282

Contents

9

Using PFC to Manage Converged Ethernet Trac...................................................................................................282

Operations on Untagged Packets................................................................................................................................282

Generation of PFC for a Priority for Untagged Packets...........................................................................................283

Congure Enhanced Transmission Selection..............................................................................................................283

Creating an ETS Priority Group..............................................................................................................................283

ETS Operation with DCBx...................................................................................................................................... 284

Conguring ETS in a DCB Map..............................................................................................................................285

Hierarchical Scheduling in ETS Output Policies......................................................................................................... 286

Using ETS to Manage Converged Ethernet Trac...................................................................................................286

Applying DCB Policies in a Switch Stack.................................................................................................................... 286

Congure a DCBx Operation........................................................................................................................................ 287

DCBx Operation....................................................................................................................................................... 287

DCBx Port Roles...................................................................................................................................................... 287

DCB Conguration Exchange................................................................................................................................ 289

Conguration Source Election................................................................................................................................289

Propagation of DCB Information........................................................................................................................... 290

Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 290

DCBx Example......................................................................................................................................................... 290

DCBx Prerequisites and Restrictions..................................................................................................................... 291

Conguring DCBx.....................................................................................................................................................291

Verifying the DCB Conguration................................................................................................................................. 294

QoS dot1p Trac Classication and Queue Assignment..........................................................................................302

Conguring the Dynamic Buer Method................................................................................................................... 302

Sample DCB Conguration...........................................................................................................................................303

PFC and ETS Conguration Command Examples.............................................................................................. 305

13 Dynamic Host Conguration Protocol (DHCP).........................................................................................306

DHCP Packet Format and Options............................................................................................................................. 306

Assign an IP Address using DHCP...............................................................................................................................308

Implementation Information......................................................................................................................................... 309

Congure the System to be a DHCP Server............................................................................................................. 309

Conguring the Server for Automatic Address Allocation.................................................................................. 310

Specifying a Default Gateway..................................................................................................................................311

Congure a Method of Hostname Resolution.......................................................................................................311

Using DNS for Address Resolution..........................................................................................................................311

Using NetBIOS WINS for Address Resolution...................................................................................................... 312

Creating Manual Binding Entries.............................................................................................................................312

Debugging the DHCP Server..................................................................................................................................312

Using DHCP Clear Commands............................................................................................................................... 313

Congure the System to be a DHCP Client................................................................................................................313

Conguring the DHCP Client System....................................................................................................................313

DHCP Client on a Management Interface.............................................................................................................315

DHCP Client Operation with Other Features........................................................................................................315

DHCP Relay When DHCP Server and Client are in Dierent VRFs.........................................................................316

Conguring Route Leaking between VRFs on DHCP Relay Agent....................................................................316

Non-default VRF conguration for DHCPv6 helper address....................................................................................317

10

Contents

Conguring DHCP relay source interface....................................................................................................................318

Global DHCP relay source IPv4 or IPv6 conguration ........................................................................................318

Interface level DHCP relay source IPv4 or IPv6 conguration .......................................................................... 319

Congure Secure DHCP...............................................................................................................................................320

Option 82..................................................................................................................................................................320

DHCP Snooping........................................................................................................................................................321

Drop DHCP Packets on Snooped VLANs Only....................................................................................................325

Dynamic ARP Inspection.........................................................................................................................................326

Conguring Dynamic ARP Inspection................................................................................................................... 326

Source Address Validation............................................................................................................................................ 328

Enabling IP Source Address Validation..................................................................................................................328

DHCP MAC Source Address Validation................................................................................................................ 329

Enabling IP+MAC Source Address Validation.......................................................................................................329

Viewing the Number of SAV Dropped Packets................................................................................................... 330

Clearing the Number of SAV Dropped Packets...................................................................................................330

14 Equal Cost Multi-Path (ECMP).................................................................................................................331

ECMP for Flow-Based Anity......................................................................................................................................331

Conguring the Hash Algorithm............................................................................................................................. 331

Enabling Deterministic ECMP Next Hop............................................................................................................... 331

Conguring the Hash Algorithm Seed.................................................................................................................. 332

Link Bundle Monitoring................................................................................................................................................. 332

Managing ECMP Group Paths...............................................................................................................................333

Creating an ECMP Group Bundle..........................................................................................................................333

Modifying the ECMP Group Threshold.................................................................................................................333

Support for /128 IPv6 and /32 IPv4 Prexes in Layer 3 Host Table and LPM Table......................................334

Support for ECMP in host table............................................................................................................................ 335

Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes ........................................................................ 335

15 FIP Snooping............................................................................................................................................336

Fibre Channel over Ethernet........................................................................................................................................ 336

Ensure Robustness in a Converged Ethernet Network............................................................................................336

FIP Snooping on Ethernet Bridges.............................................................................................................................. 338

Using FIP Snooping....................................................................................................................................................... 340

FIP Snooping Prerequisites.....................................................................................................................................340

Important Points to Remember............................................................................................................................. 340

Enabling the FCoE Transit Feature.........................................................................................................................341

Enable FIP Snooping on VLANs.............................................................................................................................342

Congure the FC-MAP Value................................................................................................................................ 342

Congure a Port for a Bridge-to-Bridge Link....................................................................................................... 342

Congure a Port for a Bridge-to-FCF Link...........................................................................................................342

Impact on Other Software Features..................................................................................................................... 342

FIP Snooping Restrictions...................................................................................................................................... 343

Conguring FIP Snooping.......................................................................................................................................343

Displaying FIP Snooping Information...........................................................................................................................344

FCoE Transit Conguration Example...........................................................................................................................349

Contents

11

16 Flex Hash and Optimized Boot-Up............................................................................................................ 351

Flex Hash Capability Overview..................................................................................................................................... 351

Conguring the Flex Hash Mechanism........................................................................................................................351

Conguring Fast Boot and LACP Fast Switchover...................................................................................................352

Optimizing the Boot Time.............................................................................................................................................352

Booting Process When Optimized Boot Time Mechanism is Enabled..............................................................352

Guidelines for Conguring Optimized Booting Mechanism................................................................................353

Interoperation of Applications with Fast Boot and System States..........................................................................354

LACP and IPv4 Routing.......................................................................................................................................... 354

LACP and IPv6 Routing..........................................................................................................................................354

BGP Graceful Restart............................................................................................................................................. 355

Cold Boot Caused by Power Cycling the System............................................................................................... 355

Unexpected Reload of the System........................................................................................................................355

Software Upgrade................................................................................................................................................... 355

LACP Fast Switchover............................................................................................................................................355

Changes to BGP Multipath.................................................................................................................................... 356

Delayed Installation of ECMP Routes Into BGP...................................................................................................356

RDMA Over Converged Ethernet (RoCE) Overview............................................................................................... 356

Preserving 802.1Q VLAN Tag Value for Lite Subinterfaces...................................................................................... 357

17 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 358

Protocol Overview.........................................................................................................................................................358

Ring Status............................................................................................................................................................... 359

Multiple FRRP Rings............................................................................................................................................... 359

Important FRRP Points...........................................................................................................................................360

Important FRRP Concepts......................................................................................................................................361

Implementing FRRP.......................................................................................................................................................362

FRRP Conguration...................................................................................................................................................... 362

Creating the FRRP Group.......................................................................................................................................362

Conguring the Control VLAN...............................................................................................................................362

Conguring and Adding the Member VLANs.......................................................................................................364

Setting the FRRP Timers........................................................................................................................................365

Clearing the FRRP Counters..................................................................................................................................365

Viewing the FRRP Conguration...........................................................................................................................365

Viewing the FRRP Information.............................................................................................................................. 365

Troubleshooting FRRP.................................................................................................................................................. 366

Conguration Checks..............................................................................................................................................366

Sample Conguration and Topology............................................................................................................................366

FRRP Support on VLT...................................................................................................................................................367

Example Scenario.................................................................................................................................................... 368

Important Points to Remember............................................................................................................................. 369

18 GARP VLAN Registration Protocol (GVRP).............................................................................................. 370

Important Points to Remember....................................................................................................................................370

Congure GVRP............................................................................................................................................................. 371

12

Contents

Related Conguration Tasks....................................................................................................................................371

Enabling GVRP Globally................................................................................................................................................ 372

Enabling GVRP on a Layer 2 Interface........................................................................................................................ 372

Congure GVRP Registration.......................................................................................................................................372

Congure a GARP Timer...............................................................................................................................................373

19 Internet Group Management Protocol (IGMP)..........................................................................................374

IGMP Implementation Information...............................................................................................................................374

IGMP Protocol Overview.............................................................................................................................................. 374

IGMP Version 2.........................................................................................................................................................374

IGMP Version 3........................................................................................................................................................ 376

Congure IGMP............................................................................................................................................................. 379

Related Conguration Tasks................................................................................................................................... 379

Viewing IGMP Enabled Interfaces...............................................................................................................................380

Selecting an IGMP Version...........................................................................................................................................380

Viewing IGMP Groups....................................................................................................................................................381

Adjusting Timers............................................................................................................................................................. 381

Adjusting Query and Response Timers.................................................................................................................. 381

Enabling IGMP Immediate-Leave.................................................................................................................................382

IGMP Snooping..............................................................................................................................................................383

IGMP Snooping Implementation Information....................................................................................................... 383

Conguring IGMP Snooping...................................................................................................................................383

Removing a Group-Port Association..................................................................................................................... 384

Disabling Multicast Flooding...................................................................................................................................384

Specifying a Port as Connected to a Multicast Router...................................................................................... 384

Conguring the Switch as Querier........................................................................................................................ 385

Fast Convergence after MSTP Topology Changes...................................................................................................385

Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................385

Protocol Separation.................................................................................................................................................386

Enabling and Disabling Management Egress Interface Selection...................................................................... 387

Handling of Management Route Conguration................................................................................................... 388

Handling of Switch-Initiated Trac....................................................................................................................... 388

Handling of Switch-Destined Trac......................................................................................................................389

Handling of Transit Trac (Trac Separation).................................................................................................... 390

Mapping of Management Applications and Trac Type.....................................................................................390

Behavior of Various Applications for Switch-Initiated Trac .............................................................................391

Behavior of Various Applications for Switch-Destined Trac ...........................................................................392

Interworking of EIS With Various Applications.....................................................................................................392

Designating a Multicast Router Interface................................................................................................................... 393

20 Interfaces................................................................................................................................................ 394

Basic Interface Conguration.......................................................................................................................................394

Advanced Interface Conguration...............................................................................................................................394

Interface Types...............................................................................................................................................................395

View Basic Interface Information.................................................................................................................................395

Resetting an Interface to its Factory Default State...................................................................................................397

Contents

13

Enabling a Physical Interface........................................................................................................................................398

Physical Interfaces.........................................................................................................................................................398

Conguration Task List for Physical Interfaces....................................................................................................398

Overview of Layer Modes...................................................................................................................................... 399

Conguring Layer 2 (Data Link) Mode..................................................................................................................399

Conguring Layer 2 (Interface) Mode.................................................................................................................. 399

Conguring Layer 3 (Network) Mode...................................................................................................................400

Conguring Layer 3 (Interface) Mode.................................................................................................................. 400

Automatic recovery of an Err-disabled interface........................................................................................................401

Conguring an automatic recovery for an Err-disabled interface......................................................................402

Egress Interface Selection (EIS)..................................................................................................................................402

Important Points to Remember............................................................................................................................. 402

Conguring EIS........................................................................................................................................................ 403

Management Interfaces................................................................................................................................................403

Conguring Management Interfaces.....................................................................................................................403

Conguring a Management Interface on an Ethernet Port............................................................................... 404

VLAN Interfaces............................................................................................................................................................ 404

Loopback Interfaces......................................................................................................................................................405

Null Interfaces................................................................................................................................................................ 406

Port Channel Interfaces................................................................................................................................................406

Port Channel Denition and Standards.................................................................................................................406

Port Channel Benets.............................................................................................................................................406

Port Channel Implementation................................................................................................................................ 406

Interfaces in Port Channels.................................................................................................................................... 407

Conguration Tasks for Port Channel Interfaces.................................................................................................407

Creating a Port Channel......................................................................................................................................... 408

Adding a Physical Interface to a Port Channel.....................................................................................................408

Reassigning an Interface to a New Port Channel.................................................................................................410

Conguring the Minimum Oper Up Links in a Port Channel............................................................................... 410

Adding or Removing a Port Channel from a VLAN...............................................................................................411

Assigning an IP Address to a Port Channel........................................................................................................... 412

Deleting or Disabling a Port Channel......................................................................................................................412

Load Balancing Through Port Channels................................................................................................................ 412

Load-Balancing Method...........................................................................................................................................413

Changing the Hash Algorithm.................................................................................................................................413

Bulk Conguration.......................................................................................................................................................... 414

Interface Range........................................................................................................................................................ 414

Bulk Conguration Examples.................................................................................................................................. 415

Dening Interface Range Macros.................................................................................................................................416

Dene the Interface Range..................................................................................................................................... 417

Choosing an Interface-Range Macro..................................................................................................................... 417

Monitoring and Maintaining Interfaces........................................................................................................................ 417

Maintenance Using TDR..........................................................................................................................................418

Non Dell-Qualied Transceivers....................................................................................................................................419

Splitting 100G Ports....................................................................................................................................................... 419

14

Contents

Link Dampening..............................................................................................................................................................420

Important Points to Remember.............................................................................................................................. 421

Conguration Example of Link Dampening........................................................................................................... 421

Enabling Link Dampening........................................................................................................................................423

Link Bundle Monitoring..................................................................................................................................................424

Using Ethernet Pause Frames for Flow Control........................................................................................................ 425

Enabling Pause Frames........................................................................................................................................... 425

Congure the MTU Size on an Interface....................................................................................................................426

Conguring wavelength for 10–Gigabit SFP+ optics................................................................................................ 427

Port-Pipes....................................................................................................................................................................... 427

CR4 Auto-Negotiation...................................................................................................................................................427

Setting the Speed of Ethernet Interfaces.................................................................................................................. 428

Syslog Warning Upon Connecting SFP28 Optics with QSA....................................................................................429

FEC Conguration......................................................................................................................................................... 429

View Advanced Interface Information..........................................................................................................................431

Conguring the Interface Sampling Size............................................................................................................... 431

Conguring the Trac Sampling Size Globally...........................................................................................................433

Dynamic Counters......................................................................................................................................................... 434

Clearing Interface Counters....................................................................................................................................434

Enhanced Validation of Interface Ranges...................................................................................................................435

Compressing Conguration Files................................................................................................................................. 435

OUI on 25G and 50G Interfaces.................................................................................................................................. 438

Conguring OUI on 25G and 50G Interfaces.......................................................................................................438

21 IPv4 Routing.............................................................................................................................................439

IP Addresses...................................................................................................................................................................440

Implementation Information....................................................................................................................................440

Conguration Tasks for IP Addresses..........................................................................................................................440

Assigning IP Addresses to an Interface.......................................................................................................................440

Conguring Static Routes............................................................................................................................................. 441

Congure Static Routes for the Management Interface.......................................................................................... 442

IPv4 Path MTU Discovery Overview.......................................................................................................................... 443

Packet handling during MTU mismatch................................................................................................................443

Using the Congured Source IP Address in ICMP Messages..................................................................................443

Conguring the ICMP Source Interface............................................................................................................... 443

Conguring the Duration to Establish a TCP Connection........................................................................................ 444

Enabling Directed Broadcast........................................................................................................................................ 444

Resolution of Host Names............................................................................................................................................445

Enabling Dynamic Resolution of Host Names............................................................................................................445

Specifying the Local System Domain and a List of Domains................................................................................... 445

Conguring DNS with Traceroute................................................................................................................................446

ARP..................................................................................................................................................................................447

Conguration Tasks for ARP........................................................................................................................................ 447

Conguring Static ARP Entries....................................................................................................................................447

Enabling Proxy ARP.......................................................................................................................................................448

Clearing ARP Cache......................................................................................................................................................448

Contents

15

ARP Learning via Gratuitous ARP................................................................................................................................448

Enabling ARP Learning via Gratuitous ARP................................................................................................................448

ARP Learning via ARP Request................................................................................................................................... 449

Conguring ARP Retries...............................................................................................................................................449

ICMP............................................................................................................................................................................... 450

Conguration Tasks for ICMP......................................................................................................................................450

Enabling ICMP Unreachable Messages...................................................................................................................... 450

UDP Helper..................................................................................................................................................................... 451

Congure UDP Helper............................................................................................................................................. 451

Important Points to Remember.............................................................................................................................. 451

Enabling UDP Helper......................................................................................................................................................451

Conguring a Broadcast Address................................................................................................................................. 451

Congurations Using UDP Helper............................................................................................................................... 452

UDP Helper with Broadcast-All Addresses.................................................................................................................452

UDP Helper with Subnet Broadcast Addresses.........................................................................................................453

UDP Helper with Congured Broadcast Addresses..................................................................................................453

UDP Helper with No Congured Broadcast Addresses............................................................................................454

Troubleshooting UDP Helper........................................................................................................................................454

22 IPv6 Routing............................................................................................................................................455

Protocol Overview.........................................................................................................................................................455

Extended Address Space........................................................................................................................................456

Stateless Autoconguration................................................................................................................................... 456

IPv6 Headers............................................................................................................................................................456

Longest Prex Match (LPM) Table and IPv6 /65 – /128 support....................................................................457

IPv6 Header Fields...................................................................................................................................................458

Extension Header Fields......................................................................................................................................... 460

Addressing.................................................................................................................................................................461

Implementing IPv6 with Dell EMC Networking OS................................................................................................... 462

ICMPv6...........................................................................................................................................................................462

Path MTU discovery......................................................................................................................................................462

IPv6 Neighbor Discovery.............................................................................................................................................. 463

IPv6 Neighbor Discovery of MTU Packets...........................................................................................................464

Conguring the IPv6 Recursive DNS Server....................................................................................................... 464

Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................465

Displaying IPv6 RDNSS Information......................................................................................................................465

Secure Shell (SSH) Over an IPv6 Transport..............................................................................................................466

Conguration Tasks for IPv6........................................................................................................................................466

Adjusting Your CAM-Prole....................................................................................................................................466

Assigning an IPv6 Address to an Interface........................................................................................................... 467

Assigning a Static IPv6 Route................................................................................................................................468

Conguring Telnet with IPv6..................................................................................................................................468

SNMP over IPv6......................................................................................................................................................469

Displaying IPv6 Information....................................................................................................................................469

Displaying an IPv6 Interface Information.............................................................................................................. 469

Showing IPv6 Routes.............................................................................................................................................. 470

16

Contents

Showing the Running-Conguration for an Interface.......................................................................................... 471

Clearing IPv6 Routes............................................................................................................................................... 472

Conguring IPv6 RA Guard.......................................................................................................................................... 472

23 iSCSI Optimization...................................................................................................................................475

iSCSI Optimization Overview....................................................................................................................................... 475

Monitoring iSCSI Trac Flows............................................................................................................................... 477

Application of Quality of Service to iSCSI Trac Flows......................................................................................477

Information Monitored in iSCSI Trac Flows....................................................................................................... 477

Detection and Auto-Conguration for Dell EqualLogic Arrays........................................................................... 478

Conguring Detection and Ports for Dell Compellent Arrays............................................................................. 478

Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................479

Enable and Disable iSCSI Optimization................................................................................................................. 479

Default iSCSI Optimization Values...............................................................................................................................480

iSCSI Optimization Prerequisites................................................................................................................................. 480

Conguring iSCSI Optimization................................................................................................................................... 480

Displaying iSCSI Optimization Information..................................................................................................................482

24 Intermediate System to Intermediate System.......................................................................................... 484

IS-IS Protocol Overview................................................................................................................................................484

IS-IS Addressing.............................................................................................................................................................484

Multi-Topology IS-IS...................................................................................................................................................... 485

Transition Mode....................................................................................................................................................... 485

Interface Support.....................................................................................................................................................486

Adjacencies...............................................................................................................................................................486

Graceful Restart.............................................................................................................................................................486

Timers....................................................................................................................................................................... 486

Implementation Information..........................................................................................................................................486

Conguration Information............................................................................................................................................. 487

Conguration Tasks for IS-IS..................................................................................................................................488

Conguring the Distance of a Route.....................................................................................................................495

Changing the IS-Type.............................................................................................................................................. 496

Redistributing IPv4 Routes.....................................................................................................................................498

Redistributing IPv6 Routes.....................................................................................................................................499

Conguring Authentication Passwords.................................................................................................................500

Setting the Overload Bit.........................................................................................................................................500

Debugging IS-IS........................................................................................................................................................501

IS-IS Metric Styles.........................................................................................................................................................502

Congure Metric Values............................................................................................................................................... 502

Maximum Values in the Routing Table.................................................................................................................. 503

Change the IS-IS Metric Style in One Level Only................................................................................................503

Leaks from One Level to Another..........................................................................................................................504

Sample Congurations..................................................................................................................................................505

25 In-Service Software Upgrade.................................................................................................................. 508

ISSU Introduction.......................................................................................................................................................... 508

Contents

17

Warmboot Limitations.............................................................................................................................................508

Fastboot 2.0 (Zero Loss Upgrade).............................................................................................................................. 508

L2 ISSU...........................................................................................................................................................................509

L3 ISSU...........................................................................................................................................................................509

CoPP................................................................................................................................................................................510

Mirroring ow control packets......................................................................................................................................510

PFC.................................................................................................................................................................................. 510

QoS.................................................................................................................................................................................. 510

Tunnel Conguration...................................................................................................................................................... 510

26 Link Aggregation Control Protocol (LACP)............................................................................................... 512

Introduction to Dynamic LAGs and LACP................................................................................................................... 512

Important Points to Remember.............................................................................................................................. 512

LACP Modes.............................................................................................................................................................513

Conguring LACP Commands................................................................................................................................513

LACP Conguration Tasks.............................................................................................................................................514

Creating a LAG..........................................................................................................................................................514

Conguring the LAG Interfaces as Dynamic.........................................................................................................514

Setting the LACP Long Timeout............................................................................................................................ 515

Monitoring and Debugging LACP...........................................................................................................................515

Shared LAG State Tracking........................................................................................................................................... 516

Conguring Shared LAG State Tracking................................................................................................................516

Important Points about Shared LAG State Tracking............................................................................................518

LACP Basic Conguration Example............................................................................................................................. 518

Congure a LAG on ALPHA....................................................................................................................................518

27 Layer 2..................................................................................................................................................... 527

Manage the MAC Address Table..................................................................................................................................527

Clearing the MAC Address Table........................................................................................................................... 527

Setting the Aging Time for Dynamic Entries........................................................................................................ 527

Conguring a Static MAC Address........................................................................................................................528

Displaying the MAC Address Table........................................................................................................................ 528

MAC Learning Limit.......................................................................................................................................................528

Setting the MAC Learning Limit............................................................................................................................ 529

mac learning-limit Dynamic.................................................................................................................................... 529

mac learning-limit mac-address-sticky................................................................................................................. 529

mac learning-limit station-move............................................................................................................................ 530

mac learning-limit no-station-move...................................................................................................................... 530

Learning Limit Violation Actions.............................................................................................................................530

Setting Station Move Violation Actions.................................................................................................................531

Recovering from Learning Limit and Station Move Violations............................................................................531

Disabling MAC Address Learning on the System.......................................................................................................532

Enabling port security................................................................................................................................................... 532

NIC Teaming................................................................................................................................................................... 532

Congure Redundant Pairs...........................................................................................................................................533

Important Points about Conguring Redundant Pairs........................................................................................535

18

Contents

Far-End Failure Detection.............................................................................................................................................536

FEFD State Changes...............................................................................................................................................537

Conguring FEFD.................................................................................................................................................... 538

Enabling FEFD on an Interface.............................................................................................................................. 538

Debugging FEFD......................................................................................................................................................539

28 Link Layer Discovery Protocol (LLDP)......................................................................................................541

802.1AB (LLDP) Overview............................................................................................................................................ 541

Protocol Data Units.................................................................................................................................................. 541

Optional TLVs................................................................................................................................................................. 542

Management TLVs.................................................................................................................................................. 542

TIA-1057 (LLDP-MED) Overview................................................................................................................................ 544

TIA Organizationally Specic TLVs........................................................................................................................ 544

Congure LLDP..............................................................................................................................................................547

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

Important Points to Remember............................................................................................................................. 548

LLDP Compatibility..................................................................................................................................................548

CONFIGURATION versus INTERFACE Congurations............................................................................................ 548

Enabling LLDP................................................................................................................................................................549

Disabling and Undoing LLDP..................................................................................................................................549

Enabling LLDP on Management Ports........................................................................................................................549

Disabling and Undoing LLDP on Management Ports..........................................................................................549

Advertising TLVs............................................................................................................................................................550

Storing and Viewing Unrecognized LLDP TLVs..........................................................................................................551

Reserved Unrecognized LLDP TLVs...................................................................................................................... 551

Organizational Specic Unrecognized LLDP TLVs...............................................................................................551

Viewing Unrecognized LLDP TLVs........................................................................................................................ 552

Viewing the LLDP Conguration................................................................................................................................. 552

Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................552

Examples of Viewing Information Advertised by Neighbors.............................................................................. 553

Conguring LLDPDU Intervals.....................................................................................................................................554

Conguring LLDP Notication Interval.......................................................................................................................555

Conguring Transmit and Receive Mode................................................................................................................... 555

Conguring the Time to Live Value............................................................................................................................. 556

Debugging LLDP............................................................................................................................................................557

Relevant Management Objects................................................................................................................................... 558

29 Microsoft Network Load Balancing..........................................................................................................562

NLB Unicast Mode Scenario........................................................................................................................................562

NLB Multicast Mode Scenario.....................................................................................................................................562

Limitations of the NLB Feature....................................................................................................................................563

Microsoft Clustering......................................................................................................................................................563

Enable and Disable VLAN Flooding ............................................................................................................................ 563

Conguring a Switch for NLB .....................................................................................................................................563

Enabling a Switch for Multicast NLB.................................................................................................................... 564

Contents

19

30 Multicast Source Discovery Protocol (MSDP).........................................................................................565

Protocol Overview.........................................................................................................................................................565

Anycast RP.....................................................................................................................................................................566

Implementation Information..........................................................................................................................................567

Congure Multicast Source Discovery Protocol........................................................................................................ 567

Related Conguration Tasks................................................................................................................................... 567

Enable MSDP.................................................................................................................................................................. 571

Manage the Source-Active Cache.............................................................................................................................. 572

Viewing the Source-Active Cache.........................................................................................................................572

Limiting the Source-Active Cache......................................................................................................................... 572

Clearing the Source-Active Cache........................................................................................................................ 573

Enabling the Rejected Source-Active Cache....................................................................................................... 573

Accept Source-Active Messages that Fail the RFP Check......................................................................................573

Specifying Source-Active Messages...........................................................................................................................576

Limiting the Source-Active Messages from a Peer................................................................................................... 577

Preventing MSDP from Caching a Local Source....................................................................................................... 577

Preventing MSDP from Caching a Remote Source...................................................................................................578

Preventing MSDP from Advertising a Local Source..................................................................................................578

Logging Changes in Peership States...........................................................................................................................579

Terminating a Peership..................................................................................................................................................579

Clearing Peer Statistics.................................................................................................................................................580

Debugging MSDP..........................................................................................................................................................580

MSDP with Anycast RP.................................................................................................................................................581

Conguring Anycast RP................................................................................................................................................582

Reducing Source-Active Message Flooding.........................................................................................................583

Specifying the RP Address Used in SA Messages.............................................................................................. 583

MSDP Sample Congurations..................................................................................................................................... 585

31 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 588

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

Spanning Tree Variations.............................................................................................................................................. 589

Implementation Information................................................................................................................................... 589

Congure Multiple Spanning Tree Protocol................................................................................................................589

Related Conguration Tasks...................................................................................................................................589

Enable Multiple Spanning Tree Globally...................................................................................................................... 590

Adding and Removing Interfaces.................................................................................................................................590

Creating Multiple Spanning Tree Instances................................................................................................................590

Inuencing MSTP Root Selection................................................................................................................................592

Interoperate with Non-Dell Bridges.............................................................................................................................592

Changing the Region Name or Revision..................................................................................................................... 593

Modifying Global Parameters....................................................................................................................................... 593

Modifying the Interface Parameters........................................................................................................................... 594

Conguring an EdgePort.............................................................................................................................................. 595

Flush MAC Addresses after a Topology Change....................................................................................................... 596

MSTP Sample Congurations......................................................................................................................................596

20

Contents

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