IS-IS Protocol Overview................................................................................................................................................397

IS-IS Addressing............................................................................................................................................................. 397

Multi-Topology IS-IS...................................................................................................................................................... 398

Transition Mode....................................................................................................................................................... 398

Interface Support.....................................................................................................................................................399

Adjacencies...............................................................................................................................................................399

Graceful Restart............................................................................................................................................................ 399

Timers....................................................................................................................................................................... 399

Implementation Information..........................................................................................................................................399

Configuration Information.............................................................................................................................................400

Configuration Tasks for IS-IS.................................................................................................................................. 401

Configuring the Distance of a Route.....................................................................................................................408

Changing the IS-Type.............................................................................................................................................. 409

Redistributing IPv4 Routes...................................................................................................................................... 411

Redistributing IPv6 Routes......................................................................................................................................412

Configuring Authentication Passwords..................................................................................................................413

Setting the Overload Bit.......................................................................................................................................... 413

Debugging IS-IS........................................................................................................................................................ 414

IS-IS Metric Styles......................................................................................................................................................... 415

Configure Metric Values................................................................................................................................................ 415

Maximum Values in the Routing Table................................................................................................................... 415

Change the IS-IS Metric Style in One Level Only.................................................................................................415

Leaks from One Level to Another...........................................................................................................................417

Sample Configurations...................................................................................................................................................418

24 Link Aggregation Control Protocol (LACP).............................................................................................. 420

Introduction to Dynamic LAGs and LACP.................................................................................................................. 420

Important Points to Remember............................................................................................................................. 420

LACP Modes............................................................................................................................................................. 421

Configuring LACP Commands................................................................................................................................ 421

LACP Configuration Tasks............................................................................................................................................ 422

Creating a LAG.........................................................................................................................................................422

Configuring the LAG Interfaces as Dynamic........................................................................................................ 422

Setting the LACP Long Timeout............................................................................................................................423

Monitoring and Debugging LACP.......................................................................................................................... 423

Shared LAG State Tracking.......................................................................................................................................... 424

Configuring Shared LAG State Tracking............................................................................................................... 424

Important Points about Shared LAG State Tracking........................................................................................... 426

LACP Basic Configuration Example.............................................................................................................................426

Configure a LAG on ALPHA................................................................................................................................... 426

25 Layer 2.....................................................................................................................................................435

Manage the MAC Address Table................................................................................................................................. 435

Clearing the MAC Address Table........................................................................................................................... 435

Contents

Table of Contents