Dell PowerEdge FN IO ModuleConfiguration Guide

9.13.0.0

Notes, cautions, and warnings

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

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

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

Copyright © 2017 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

2017 - 12

Rev. A00

Contents

1 About this Guide...........................................................................................................................................33Audience............................................................................................................................................................................33Conventions......................................................................................................................................................................33Information Symbols........................................................................................................................................................ 33Related Documents......................................................................................................................................................... 34

2 Before You Start.......................................................................................................................................... 35Operational Modes...........................................................................................................................................................35

Standalone mode....................................................................................................................................................... 35VLT mode....................................................................................................................................................................35Programmable MUX mode....................................................................................................................................... 35Stacking mode............................................................................................................................................................36Full Switch mode........................................................................................................................................................36

Default Settings............................................................................................................................................................... 36Other Auto-Configured Settings....................................................................................................................................37Data Center Bridging Support........................................................................................................................................ 37FCoE Connectivity and FIP Snooping........................................................................................................................... 37iSCSI Operation................................................................................................................................................................ 37Link Aggregation.............................................................................................................................................................. 38Link Tracking.....................................................................................................................................................................38Configuring VLANs.......................................................................................................................................................... 38

Uplink LAG.................................................................................................................................................................. 38Server-Facing LAGs.................................................................................................................................................. 38

Where to Go From Here..................................................................................................................................................39

3 Configuration Fundamentals........................................................................................................................ 40Accessing the Command Line........................................................................................................................................40CLI Modes......................................................................................................................................................................... 41

Navigating CLI Modes................................................................................................................................................41The do Command............................................................................................................................................................ 42Undoing Commands........................................................................................................................................................ 43Obtaining Help..................................................................................................................................................................43Entering and Editing Commands....................................................................................................................................44Command History............................................................................................................................................................ 44Filtering show Command Outputs.................................................................................................................................45Multiple Users in Configuration Mode...........................................................................................................................46

4 Getting Started............................................................................................................................................47Console Access................................................................................................................................................................ 48

Serial Console............................................................................................................................................................. 48External Serial Port with a USB Connector............................................................................................................50

Accessing the CLI Interface and Running Scripts Using SSH....................................................................................50

Contents 3

Entering CLI commands Using an SSH Connection..............................................................................................50Executing Local CLI Scripts Using an SSH Connection........................................................................................50

Boot Process.....................................................................................................................................................................51Default Configuration...................................................................................................................................................... 52Configuring a Host Name............................................................................................................................................... 52Configuring a Unique Host Name on the System........................................................................................................53Accessing the System Remotely....................................................................................................................................53

Accessing the Switch Remotely...............................................................................................................................53Configure the Management Port IP Address......................................................................................................... 53Configure a Management Route..............................................................................................................................54Configuring a Username and Password..................................................................................................................54

Configuring the Enable Password..................................................................................................................................55Configuration File Management.....................................................................................................................................55

Copy Files to and from the System......................................................................................................................... 56Save the Running-Configuration..............................................................................................................................57Viewing Files...............................................................................................................................................................58

Managing the File System.............................................................................................................................................. 59View the Command History........................................................................................................................................... 60Using HTTP for File Transfers........................................................................................................................................ 60Upgrading and Downgrading the Dell Networking OS.................................................................................................61Verify Software Images Before Installation....................................................................................................................61Deploying FN I/O Module............................................................................................................................................... 62

Ensuring the FN IOM system is in Standalone Mode............................................................................................63Configuration Examples............................................................................................................................................ 63Configure Interfaces and Port Channel...................................................................................................................65Verifying the Configurations.....................................................................................................................................65

5 Management................................................................................................................................................67Configuring Privilege Levels............................................................................................................................................67

Creating a Custom Privilege Level...........................................................................................................................68Customizing a Privilege Level...................................................................................................................................68Applying a Privilege Level to a Username............................................................................................................... 70Applying a Privilege Level to a Terminal Line.......................................................................................................... 70

Configuring Logging.........................................................................................................................................................70Audit and Security Logs............................................................................................................................................. 71Configuring Logging Format ...................................................................................................................................72Setting Up a Secure Connection to a Syslog Server.............................................................................................73

Display the Logging Buffer and the Logging Configuration........................................................................................ 74Log Messages in the Internal Buffer.............................................................................................................................. 74

Configuration Task List for System Log Management.......................................................................................... 75Disabling System Logging............................................................................................................................................... 75Sending System Messages to a Syslog Server............................................................................................................ 75

Configuring a UNIX System as a Syslog Server.....................................................................................................75Changing System Logging Settings...............................................................................................................................76Display the Logging Buffer and the Logging Configuration........................................................................................ 77Configuring a UNIX Logging Facility Level.................................................................................................................... 77

4 Contents

Synchronizing Log Messages......................................................................................................................................... 78Enabling Timestamp on Syslog Messages.................................................................................................................... 79Enabling Secure Management Mode............................................................................................................................ 79Enabling Secured CLI Mode........................................................................................................................................... 80File Transfer Services...................................................................................................................................................... 80

Configuration Task List for File Transfer Services..................................................................................................80Enabling the FTP Server...........................................................................................................................................80Configuring FTP Server Parameters........................................................................................................................ 81Configuring FTP Client Parameters..........................................................................................................................81

Terminal Lines................................................................................................................................................................... 82Denying and Permitting Access to a Terminal Line................................................................................................82Configuring Login Authentication for Terminal Lines.............................................................................................82

Setting Time Out of EXEC Privilege Mode...................................................................................................................83Using Telnet to get to Another Network Device..........................................................................................................84Lock CONFIGURATION Mode....................................................................................................................................... 84

Viewing the Configuration Lock Status...................................................................................................................85Limit Concurrent Login Sessions....................................................................................................................................85

Restrictions for Limiting the Number of Concurrent Sessions............................................................................ 85Configuring Concurrent Session Limit.....................................................................................................................86Enabling the System to Clear Existing Sessions.................................................................................................... 86

Track Login Activity..........................................................................................................................................................87Restrictions for Tracking Login Activity...................................................................................................................87Configuring Login Activity Tracking......................................................................................................................... 87Display Login Statistics..............................................................................................................................................88

Recovering from a Forgotten Password....................................................................................................................... 89Recovering from a Forgotten Enable Password.......................................................................................................... 90Recovering from a Failed Start....................................................................................................................................... 91

6 802.1X..........................................................................................................................................................92The Port-Authentication Process.................................................................................................................................. 95

EAP over RADIUS......................................................................................................................................................96Configuring 802.1X...........................................................................................................................................................96

Related Configuration Tasks..................................................................................................................................... 96Important Points to Remember......................................................................................................................................97Enabling 802.1X.................................................................................................................................................................97

Configuring Request Identity Re-Transmissions.....................................................................................................98Configuring a Quiet Period after a Failed Authentication..................................................................................... 99

Forcibly Authorizing or Unauthorizing a Port..............................................................................................................100Re-Authenticating a Port............................................................................................................................................... 101Configuring Timeouts..................................................................................................................................................... 101Configuring Dynamic VLAN Assignment with Port Authentication......................................................................... 102

Guest and Authentication-Fail VLANs................................................................................................................... 103Configuring a Guest VLAN......................................................................................................................................104Configuring an Authentication-Fail VLAN............................................................................................................. 104

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

Contents 5

Optimizing CAM Utilization During the Attachment of ACLs to VLANs................................................................. 106Guidelines for Configuring ACL VLAN groups............................................................................................................ 107Configuring ACL VLAN Groups and Configuring FP Blocks for VLAN Parameters...............................................108

Configuring ACL VLAN Groups.............................................................................................................................. 108Configuring FP Blocks for VLAN Parameters.......................................................................................................109

Viewing CAM Usage...................................................................................................................................................... 109Allocating FP Blocks for VLAN Processes.................................................................................................................... 111

8 Access Control Lists (ACLs)........................................................................................................................112IP Access Control Lists (ACLs)......................................................................................................................................113Implementing ACL on the Dell Networking OS........................................................................................................... 113ACLs and VLANs............................................................................................................................................................. 114ACL Optimization............................................................................................................................................................ 114Determine the Order in which ACLs are Used to Classify Traffic..............................................................................114

Example of the order Keyword to Determine ACL Sequence..............................................................................114IP Fragment Handling..................................................................................................................................................... 115IP Fragments ACL Examples......................................................................................................................................... 115Layer 4 ACL Rules Examples......................................................................................................................................... 115Configure a Standard IP ACL.........................................................................................................................................116Configuring a Standard IP ACL Filter............................................................................................................................ 117Configure an Extended IP ACL......................................................................................................................................118Configuring Filters with a Sequence Number..............................................................................................................118Configuring Filters Without a Sequence Number....................................................................................................... 118Established Flag...............................................................................................................................................................119Configure Layer 2 and Layer 3 ACLs............................................................................................................................ 119Assign an IP ACL to an Interface..................................................................................................................................120Applying an IP ACL......................................................................................................................................................... 120Counting ACL Hits...........................................................................................................................................................121Configure Ingress ACLs.................................................................................................................................................. 121Configure Egress ACLs...................................................................................................................................................121Applying Egress Layer 3 ACLs (Control-Plane).......................................................................................................... 122IP Prefix Lists.................................................................................................................................................................. 122

Implementation Information.................................................................................................................................... 123Configuration Task List for Prefix Lists........................................................................................................................ 123Creating a Prefix List......................................................................................................................................................123Creating a Prefix List Without a Sequence Number.................................................................................................. 124Viewing Prefix Lists........................................................................................................................................................ 125Applying a Prefix List for Route Redistribution........................................................................................................... 125Applying a Filter to a Prefix List (OSPF)......................................................................................................................126ACL Resequencing......................................................................................................................................................... 126Resequencing an ACL or Prefix List............................................................................................................................. 127Route Maps..................................................................................................................................................................... 128

Implementation Information.................................................................................................................................... 128Important Points to Remember.................................................................................................................................... 129Configuration Task List for Route Maps...................................................................................................................... 129Creating a Route Map....................................................................................................................................................129

6 Contents

Configure Route Map Filters......................................................................................................................................... 130Configuring Match Routes............................................................................................................................................. 131Configuring Set Conditions........................................................................................................................................... 132Configure a Route Map for Route Redistribution....................................................................................................... 132Configure a Route Map for Route Tagging..................................................................................................................133Continue Clause..............................................................................................................................................................133Logging of ACL Processes............................................................................................................................................ 134Guidelines for Configuring ACL Logging......................................................................................................................134Configuring ACL Logging.............................................................................................................................................. 135Flow-Based Monitoring Support for ACLs.................................................................................................................. 135

Behavior of Flow-Based Monitoring.......................................................................................................................136Enabling Flow-Based Monitoring.................................................................................................................................. 137

9 Bidirectional Forwarding Detection (BFD).................................................................................................. 139How BFD Works............................................................................................................................................................. 139

BFD Packet Format..................................................................................................................................................140BFD Sessions............................................................................................................................................................. 141BFD Three-Way Handshake.................................................................................................................................... 142Session State Changes............................................................................................................................................ 144

Important Points to Remember.................................................................................................................................... 144Configure BFD................................................................................................................................................................ 144

Configure BFD for Physical Ports...........................................................................................................................145Enabling BFD Globally.............................................................................................................................................. 145Changing Physical Port Session Parameters........................................................................................................ 146Disabling and Re-Enabling BFD.............................................................................................................................. 146

Configure BFD for Static Routes.................................................................................................................................. 147Related Configuration Tasks.................................................................................................................................... 147Establishing Sessions for Static Routes.................................................................................................................147Establishing Static Route Sessions on Specific Neighbors................................................................................. 148Changing Static Route Session Parameters......................................................................................................... 149Disabling BFD for Static Routes............................................................................................................................. 149

Configure BFD for OSPF............................................................................................................................................... 149Related Configuration Tasks....................................................................................................................................150Establishing Sessions with OSPF Neighbors........................................................................................................ 150Establishing Sessions with OSPF Neighbors for nondefault VRFs..................................................................... 151Changing OSPF Session Parameters.....................................................................................................................152Disabling BFD for OSPF...........................................................................................................................................152

Configure BFD for OSPFv3...........................................................................................................................................152Related Configuration Tasks....................................................................................................................................153Establishing Sessions with OSPFv3 Neighbors.................................................................................................... 153Establishing BFD Sessions with OSPFv3 Neighbors for nondefault VRFs....................................................... 153Changing OSPFv3 Session Parameters.................................................................................................................154Disabling BFD for OSPFv3...................................................................................................................................... 155

Configure BFD for BGP................................................................................................................................................. 155Prerequisites..............................................................................................................................................................155Establishing Sessions with BGP Neighbors.......................................................................................................... 155

Contents 7

Disabling BFD for BGP.............................................................................................................................................160Use BFD in a BGP Peer Group............................................................................................................................... 160Displaying BFD for BGP Information......................................................................................................................160

Configure BFD for VRRP...............................................................................................................................................164Related Configuration Tasks....................................................................................................................................164Establishing Sessions with All VRRP Neighbors...................................................................................................165Establishing VRRP Sessions on VRRP Neighbors................................................................................................165Changing VRRP Session Parameters.................................................................................................................... 166Disabling BFD for VRRP.......................................................................................................................................... 166

Configure BFD for VLANs............................................................................................................................................. 167Related Configuration Task......................................................................................................................................167Establish Sessions with VLAN Neighbors............................................................................................................. 168Changing VLAN Session Parameters.....................................................................................................................168Disabling BFD for VLANs.........................................................................................................................................169

Configure BFD for Port-Channels................................................................................................................................ 169Related Configuration Tasks....................................................................................................................................169Establish Sessions on Port-Channels..................................................................................................................... 170Changing Physical Port Session Parameters........................................................................................................ 170Disabling BFD for Port-Channels.............................................................................................................................171

Configuring Protocol Liveness....................................................................................................................................... 171

10 Border Gateway Protocol IPv4 (BGPv4)................................................................................................... 172Autonomous Systems (AS)........................................................................................................................................... 172Sessions and Peers......................................................................................................................................................... 174

Establish a Session....................................................................................................................................................174Route Reflectors.............................................................................................................................................................175

Communities............................................................................................................................................................. 176BGP Attributes................................................................................................................................................................176

Best Path Selection Criteria.................................................................................................................................... 176Weight........................................................................................................................................................................ 178Local Preference....................................................................................................................................................... 178Multi-Exit Discriminators (MEDs)...........................................................................................................................179Origin..........................................................................................................................................................................180AS Path.......................................................................................................................................................................181Next Hop.................................................................................................................................................................... 181

Multiprotocol BGP...........................................................................................................................................................181Implement BGP with the Dell Networking OS............................................................................................................ 182

Additional Path (Add-Path) Support...................................................................................................................... 182Advertise IGP Cost as MED for Redistributed Routes........................................................................................ 182Ignore Router-ID for Some Best-Path Calculations............................................................................................. 183Four-Byte AS Numbers............................................................................................................................................183AS4 Number Representation.................................................................................................................................. 183AS Number Migration.............................................................................................................................................. 185BGP4 Management Information Base (MIB)........................................................................................................186Important Points to Remember.............................................................................................................................. 186

Configuration Information.............................................................................................................................................. 187

8 Contents

BGP Configuration..........................................................................................................................................................187Enabling BGP............................................................................................................................................................ 188Enabling MBGP Configurations.............................................................................................................................. 218

BGP Regular Expression Optimization.........................................................................................................................219Debugging BGP.............................................................................................................................................................. 219

Storing Last and Bad PDUs....................................................................................................................................220PDU Counters...........................................................................................................................................................221

Sample Configurations...................................................................................................................................................221

11 Configuration Cloning............................................................................................................................... 230Cloning Configuration Output Status..........................................................................................................................230

12 Content Addressable Memory (CAM).......................................................................................................233CAM Allocation...............................................................................................................................................................233Test CAM Usage............................................................................................................................................................ 234View CAM-ACL Settings.............................................................................................................................................. 234Configuring CAM Threshold and Silence Period........................................................................................................235

Setting CAM Threshold and Silence Period......................................................................................................... 235CAM Optimization......................................................................................................................................................... 236

13 Control Plane Policing (CoPP)..................................................................................................................237Configure Control Plane Policing................................................................................................................................. 238

Configuring CoPP for Protocols............................................................................................................................ 239Configuring CoPP for CPU Queues...................................................................................................................... 240Show Commands..................................................................................................................................................... 241

14 Data Center Bridging (DCB)..................................................................................................................... 243Supported Modes.......................................................................................................................................................... 243Ethernet Enhancements in Data Center Bridging......................................................................................................243Priority-Based Flow Control......................................................................................................................................... 244Enhanced Transmission Selection................................................................................................................................245Data Center Bridging Exchange Protocol (DCBx)..................................................................................................... 247Creating a DCB Map......................................................................................................................................................247

Important Points to Remember..............................................................................................................................247Applying a DCB Map on Server-Facing Ethernet Ports......................................................................................248

Data Center Bridging: Default Configuration..............................................................................................................248Data Center Bridging in a Traffic Flow.........................................................................................................................249Data Center Bridging: Auto-DCB-Enable Mode........................................................................................................ 249Configuring Priority-Based Flow Control.....................................................................................................................251

How Priority-Based Flow Control is Implemented...............................................................................................253Configuring Lossless Queues................................................................................................................................. 253Configuring the PFC Buffer in a Switch Stack.................................................................................................... 254

Configuring Enhanced Transmission Selection.......................................................................................................... 255How Enhanced Transmission Selection is Implemented..................................................................................... 255ETS Operation with DCBx......................................................................................................................................256

Hierarchical Scheduling in ETS Output Policies.........................................................................................................256

Contents 9

DCBx Operation............................................................................................................................................................. 257DCBx Operation....................................................................................................................................................... 257DCBx Port Roles...................................................................................................................................................... 257DCB Configuration Exchange................................................................................................................................ 258Configuration Source Election............................................................................................................................... 259Propagation of DCB Information........................................................................................................................... 259Auto-Detection of the DCBx Version....................................................................................................................260DCBx Example......................................................................................................................................................... 260DCBx Prerequisites and Restrictions..................................................................................................................... 261DCBx Error Messages.............................................................................................................................................262Debugging DCBx on an Interface.......................................................................................................................... 262

Verifying the DCB Configuration................................................................................................................................. 262QoS dot1p Traffic Classification and Queue Assignment...........................................................................................271Troubleshooting PFC, ETS, and DCBx Operation.......................................................................................................271

15 Dynamic Host Configuration Protocol (DHCP)......................................................................................... 274Supported Modes.......................................................................................................................................................... 274Assigning an IP Address using DHCP.......................................................................................................................... 274Debugging DHCP Client Operation..............................................................................................................................276DHCP Client....................................................................................................................................................................277How DHCP Client is Implemented............................................................................................................................... 278DHCP Client on a Management Interface.................................................................................................................. 278DHCP Client on a VLAN................................................................................................................................................279DHCP Packet Format and Options..............................................................................................................................279Option 82........................................................................................................................................................................280Releasing and Renewing DHCP-based IP Addresses.................................................................................................281Viewing DHCP Statistics and Lease Information........................................................................................................281DHCP Snooping............................................................................................................................................................. 282

DHCP Snooping for a Multi-Tenant Host..............................................................................................................282DHCP Snooping in a VLT Setup.............................................................................................................................283Enabling DHCP Snooping....................................................................................................................................... 283Enabling IPv6 DHCP Snooping.............................................................................................................................. 283Adding a Static Entry in the Binding Table............................................................................................................283Adding a Static IPV6 DHCP Snooping Binding Table.......................................................................................... 284Clearing the Binding Table...................................................................................................................................... 284Clearing the DHCP IPv6 Binding Table................................................................................................................. 284Displaying the Contents of the Binding Table.......................................................................................................284Displaying the Contents of the DHCPv6 Binding Table...................................................................................... 285Debugging the IPv6 DHCP.....................................................................................................................................285IPv6 DHCP Snooping MAC-Address Verification................................................................................................286

16 Equal Cost Multi-Path (ECMP)................................................................................................................ 287ECMP for Flow-Based Affinity..................................................................................................................................... 287

Enabling Deterministic ECMP Next Hop...............................................................................................................287Link Bundle Monitoring..................................................................................................................................................287Managing ECMP Group Paths.....................................................................................................................................288

10 Contents

17 FC FPORT................................................................................................................................................289FC FPORT...................................................................................................................................................................... 290Configuring Switch Mode to FCF Port Mode............................................................................................................290Name Server................................................................................................................................................................... 291FCoE Maps.....................................................................................................................................................................292Creating an FCoE Map..................................................................................................................................................292Zoning..............................................................................................................................................................................293Creating Zone and Adding Members...........................................................................................................................294Creating Zone Alias and Adding Members..................................................................................................................294Creating Zonesets..........................................................................................................................................................294Activating a Zoneset..................................................................................................................................................... 295Displaying the Fabric Parameters................................................................................................................................ 295

18 FCoE Transit.............................................................................................................................................298Supported Modes..........................................................................................................................................................298Fibre Channel over Ethernet........................................................................................................................................ 298Ensure Robustness in a Converged Ethernet Network............................................................................................ 298FIP Snooping on Ethernet Bridges..............................................................................................................................300FIP Snooping in a Switch Stack....................................................................................................................................301Using FIP Snooping....................................................................................................................................................... 302

Important Points to Remember............................................................................................................................. 302Enabling the FCoE Transit Feature........................................................................................................................302Enable FIP Snooping on VLANs.............................................................................................................................303Configure the FC-MAP Value................................................................................................................................ 303Configure a Port for a Bridge-to-Bridge Link.......................................................................................................303Configure a Port for a Bridge-to-FCF Link...........................................................................................................303Impact on Other Software Features..................................................................................................................... 303FIP Snooping Prerequisites.....................................................................................................................................304FIP Snooping Restrictions...................................................................................................................................... 304Configuring FIP Snooping.......................................................................................................................................305

Displaying FIP Snooping Information...........................................................................................................................305FCoE Transit Configuration Example........................................................................................................................... 310

19 FIPS Cryptography................................................................................................................................... 313Preparing the System.................................................................................................................................................... 313Enabling FIPS Mode.......................................................................................................................................................313Generating Host-Keys....................................................................................................................................................314Monitoring FIPS Mode Status...................................................................................................................................... 314Disabling FIPS Mode...................................................................................................................................................... 315

20 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 316Protocol Overview..........................................................................................................................................................316

Ring Status................................................................................................................................................................ 317Multiple FRRP Rings................................................................................................................................................ 318Important FRRP Points............................................................................................................................................319

Contents 11

Important FRRP Concepts..................................................................................................................................... 320Implementing FRRP....................................................................................................................................................... 321FRRP Configuration....................................................................................................................................................... 321

Creating the FRRP Group....................................................................................................................................... 321Configuring the Control VLAN................................................................................................................................321Configuring and Adding the Member VLANs.......................................................................................................323Setting the FRRP Timers........................................................................................................................................324Clearing the FRRP Counters.................................................................................................................................. 324Viewing the FRRP Configuration........................................................................................................................... 324Viewing the FRRP Information...............................................................................................................................324

Troubleshooting FRRP.................................................................................................................................................. 325Configuration Checks..............................................................................................................................................325

Sample Configuration and Topology............................................................................................................................325FRRP Support on VLT...................................................................................................................................................327

Example Scenario.................................................................................................................................................... 328Important Points to Remember............................................................................................................................. 329

21 GARP VLAN Registration Protocol (GVRP)..............................................................................................330Important Points to Remember................................................................................................................................... 330Configure GVRP............................................................................................................................................................ 330

Related Configuration Tasks....................................................................................................................................331Enabling GVRP Globally................................................................................................................................................. 331Enabling GVRP on a Layer 2 Interface........................................................................................................................332Configure GVRP Registration.......................................................................................................................................332Configure a GARP Timer.............................................................................................................................................. 333

22 FIP Snooping........................................................................................................................................... 334Supported Modes.......................................................................................................................................................... 334Fibre Channel over Ethernet........................................................................................................................................ 334Ensuring Robustness in a Converged Ethernet Network.........................................................................................334FIP Snooping on Ethernet Bridges.............................................................................................................................. 336How FIP Snooping is Implemented.............................................................................................................................. 337

FIP Snooping on VLANs..........................................................................................................................................337FC-MAP Value......................................................................................................................................................... 338Bridge-to-FCF Links................................................................................................................................................ 338Impact on other Software Features...................................................................................................................... 338FIP Snooping Prerequisites.....................................................................................................................................338FIP Snooping Restrictions...................................................................................................................................... 339

Configuring FIP Snooping.............................................................................................................................................339Displaying FIP Snooping Information...........................................................................................................................340FIP Snooping Example.................................................................................................................................................. 345Debugging FIP Snooping.............................................................................................................................................. 345

23 Internet Group Management Protocol (IGMP)......................................................................................... 347IGMP Overview..............................................................................................................................................................347IGMP Version 2.............................................................................................................................................................. 347

12 Contents

Joining a Multicast Group.......................................................................................................................................348Leaving a Multicast Group......................................................................................................................................348

IGMP Version 3.............................................................................................................................................................. 348Joining and Filtering Groups and Sources............................................................................................................ 349Leaving and Staying in Groups...............................................................................................................................350

IGMP Snooping...............................................................................................................................................................351How IGMP Snooping is Implemented on an Aggregator........................................................................................... 351Disabling Multicast Flooding..........................................................................................................................................351Displaying IGMP Information.........................................................................................................................................351

24 Interfaces................................................................................................................................................ 354Basic Interface Configuration.......................................................................................................................................354Advanced Interface Configuration...............................................................................................................................354Interface Types...............................................................................................................................................................355View Basic Interface Information.................................................................................................................................355Configuring the Default Interface................................................................................................................................ 357Enabling a Physical Interface........................................................................................................................................358Physical Interfaces.........................................................................................................................................................358

Configuration Task List for Physical Interfaces....................................................................................................358Overview of Layer Modes...................................................................................................................................... 359Configuring Layer 2 (Data Link) Mode..................................................................................................................359Configuring Layer 2 (Interface) Mode.................................................................................................................. 359Configuring Layer 3 (Network) Mode...................................................................................................................360Configuring Layer 3 (Interface) Mode.................................................................................................................. 360

Management Interfaces.................................................................................................................................................361Configuring Management Interfaces on the Switch........................................................................................... 362

VLAN Interfaces............................................................................................................................................................ 363Loopback Interfaces...................................................................................................................................................... 363Null Interfaces................................................................................................................................................................ 364VLAN Membership........................................................................................................................................................ 364

Default VLAN .......................................................................................................................................................... 365Port-Based VLANs.................................................................................................................................................. 365VLANs and Port Tagging........................................................................................................................................ 365Configuring VLAN Membership.............................................................................................................................366Displaying VLAN Membership................................................................................................................................366Adding an Interface to a Tagged VLAN.................................................................................................................367Adding an Interface to an Untagged VLAN.......................................................................................................... 367VLAN Configuration on Physical Ports and Port-Channels................................................................................368

Port Channel Interfaces................................................................................................................................................369Port Channel Definition and Standards.................................................................................................................369Port Channel Benefits.............................................................................................................................................369Port Channel Implementation.................................................................................................................................370100/1000/10000 Mbps Interfaces in Port Channels...........................................................................................370Configuration Tasks for Port Channel Interfaces..................................................................................................371Creating a Port Channel...........................................................................................................................................371Adding a Physical Interface to a Port Channel......................................................................................................371

Contents 13

Reassigning an Interface to a New Port Channel................................................................................................ 373Configuring the Minimum Oper Up Links in a Port Channel...............................................................................374Adding or Removing a Port Channel from a VLAN..............................................................................................374Assigning an IP Address to a Port Channel.......................................................................................................... 375Deleting or Disabling a Port Channel..................................................................................................................... 375

Load Balancing through Port Channels.......................................................................................................................375Changing the Hash Algorithm...................................................................................................................................... 375Server Ports....................................................................................................................................................................376

Default Configuration without Start-up Config....................................................................................................376Bulk Configuration..........................................................................................................................................................377

Interface Range........................................................................................................................................................ 377Bulk Configuration Examples..................................................................................................................................378

Defining Interface Range Macros................................................................................................................................ 379Define the Interface Range.....................................................................................................................................379Choosing an Interface-Range Macro.................................................................................................................... 379

Monitoring and Maintaining Interfaces....................................................................................................................... 380Maintenance Using TDR..........................................................................................................................................381

Splitting QSFP Ports to SFP+ Ports............................................................................................................................ 381Merging SFP+ Ports to QSFP 40G Ports.............................................................................................................382Configure the MTU Size on an Interface..............................................................................................................382

Configuring wavelength for 10–Gigabit SFP+ optics................................................................................................383Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................383

Important Points to Remember............................................................................................................................. 384Example Scenarios...................................................................................................................................................384

Layer 2 Flow Control Using Ethernet Pause Frames................................................................................................ 384Enabling Pause Frames...........................................................................................................................................385

Configure MTU Size on an Interface...........................................................................................................................385Port-Pipes.......................................................................................................................................................................386Auto-Negotiation on Ethernet Interfaces...................................................................................................................386

Setting the Speed and Duplex Mode of Ethernet Interfaces.............................................................................386View Advanced Interface Information.........................................................................................................................388

Configuring the Interface Sampling Size.............................................................................................................. 389Configuring the Traffic Sampling Size Globally.................................................................................................... 390Dynamic Counters.................................................................................................................................................... 391

Enhanced Control of Remote Fault Indication Processing....................................................................................... 392

25 Internet Protocol Security (IPSec).......................................................................................................... 394Configuring IPSec .........................................................................................................................................................394

26 IPv4 Routing............................................................................................................................................396IP Addresses...................................................................................................................................................................396

Implementation Information....................................................................................................................................397Configuration Tasks for IP Addresses....................................................................................................................397

IPv4 Path MTU Discovery Overview.......................................................................................................................... 399Using the Configured Source IP Address in ICMP Messages..................................................................................400

Configuring the ICMP Source Interface............................................................................................................... 400

14 Contents

Configuring the Duration to Establish a TCP Connection........................................................................................ 400Enabling Directed Broadcast.........................................................................................................................................401Resolution of Host Names............................................................................................................................................ 401

Enabling Dynamic Resolution of Host Names.......................................................................................................401Specifying the Local System Domain and a List of Domains............................................................................. 402Configuring DNS with Traceroute..........................................................................................................................402

ARP................................................................................................................................................................................. 403Configuration Tasks for ARP.................................................................................................................................. 403

ARP Learning via Gratuitous ARP............................................................................................................................... 405ARP Learning via ARP Request................................................................................................................................... 405Configuring ARP Retries...............................................................................................................................................406ICMP................................................................................................................................................................................407

Configuration Tasks for ICMP................................................................................................................................ 407UDP Helper.....................................................................................................................................................................407

Configure UDP Helper.............................................................................................................................................407Important Points to Remember..............................................................................................................................407Enabling UDP Helper...............................................................................................................................................408

Configurations Using UDP Helper............................................................................................................................... 408UDP Helper with Broadcast-All Addresses...........................................................................................................408UDP Helper with Subnet Broadcast Addresses...................................................................................................409UDP Helper with Configured Broadcast Addresses............................................................................................409UDP Helper with No Configured Broadcast Addresses...................................................................................... 410

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

27 IPv6 Routing...................................