Reference Guide

Table Of Contents
IS-IS Protocol Overview....................................................................................................................................... 439
IS-IS Addressing...................................................................................................................................................439
Multi-Topology IS-IS.............................................................................................................................................440
Transition Mode............................................................................................................................................. 440
Interface Support........................................................................................................................................... 440
Adjacencies....................................................................................................................................................441
Graceful Restart....................................................................................................................................................441
Timers.............................................................................................................................................................441
Implementation Information................................................................................................................................. 441
Configuration Information.....................................................................................................................................442
Configuration Tasks for IS-IS......................................................................................................................... 443
Configuring the Distance of a Route.............................................................................................................. 450
Changing the IS-Type.....................................................................................................................................451
Redistributing IPv4 Routes............................................................................................................................. 453
Redistributing IPv6 Routes............................................................................................................................. 454
Configuring Authentication Passwords......................................................................................................... 455
Setting the Overload Bit................................................................................................................................. 455
Debugging IS-IS............................................................................................................................................. 456
IS-IS Metric Styles................................................................................................................................................457
Configure Metric Values.......................................................................................................................................457
Maximum Values in the Routing Table...........................................................................................................458
Change the IS-IS Metric Style in One Level Only...........................................................................................458
Leaks from One Level to Another................................................................................................................... 459
Sample Configurations..........................................................................................................................................460
27 Link Aggregation Control Protocol (LACP)........................................................................463
Introduction to Dynamic LAGs and LACP............................................................................................................. 463
Important Points to Remember...................................................................................................................... 463
LACP Modes...................................................................................................................................................464
Configuring LACP Commands........................................................................................................................ 464
LACP Configuration Tasks.................................................................................................................................... 465
Creating a LAG............................................................................................................................................... 465
Configuring the LAG Interfaces as Dynamic..................................................................................................465
Setting the LACP Long Timeout......................................................................................................................466
Monitoring and Debugging LACP...................................................................................................................467
Shared LAG State Tracking.................................................................................................................................. 467
Configuring Shared LAG State Tracking........................................................................................................ 467
Important Points about Shared LAG State Tracking......................................................................................469
LACP Basic Configuration Example......................................................................................................................469
Configure a LAG on ALPHA............................................................................................................................ 469
28 Layer 2.....................................................................................................................................479