Concept Guide

26 Intermediate System to Intermediate System.......................................................................................... 503
IS-IS Protocol Overview............................................................................................................................................... 503
IS-IS Addressing.............................................................................................................................................................503
Multi-Topology IS-IS...................................................................................................................................................... 504
Transition Mode....................................................................................................................................................... 504
Interface Support.................................................................................................................................................... 505
Adjacencies.............................................................................................................................................................. 505
Graceful Restart............................................................................................................................................................ 505
Timers....................................................................................................................................................................... 505
Implementation Information......................................................................................................................................... 505
Conguration Information.............................................................................................................................................506
Conguration Tasks for IS-IS..................................................................................................................................507
Conguring the Distance of a Route......................................................................................................................514
Changing the IS-Type...............................................................................................................................................515
Redistributing IPv4 Routes......................................................................................................................................517
Redistributing IPv6 Routes......................................................................................................................................518
Conguring Authentication Passwords..................................................................................................................519
Setting the Overload Bit..........................................................................................................................................519
Debugging IS-IS....................................................................................................................................................... 520
IS-IS Metric Styles..........................................................................................................................................................521
Congure Metric Values................................................................................................................................................ 521
Maximum Values in the Routing Table................................................................................................................... 521
Change the IS-IS Metric Style in One Level Only.................................................................................................521
Leaks from One Level to Another..........................................................................................................................523
Sample Congurations.................................................................................................................................................. 524
27 Link Aggregation Control Protocol (LACP)...............................................................................................526
Introduction to Dynamic LAGs and LACP.................................................................................................................. 526
Important Points to Remember............................................................................................................................. 526
LACP Modes............................................................................................................................................................ 527
Conguring LACP Commands............................................................................................................................... 527
LACP Conguration Tasks............................................................................................................................................ 528
Creating a LAG.........................................................................................................................................................528
Conguring the LAG Interfaces as Dynamic........................................................................................................ 528
Setting the LACP Long Timeout........................................................................................................................... 529
Monitoring and Debugging LACP..........................................................................................................................529
Shared LAG State Tracking.......................................................................................................................................... 530
Conguring Shared LAG State Tracking...............................................................................................................530
Important Points about Shared LAG State Tracking........................................................................................... 532
LACP Basic Conguration Example............................................................................................................................ 532
Congure a LAG on ALPHA................................................................................................................................... 532
28 Layer 2..................................................................................................................................................... 541
Manage the MAC Address Table..................................................................................................................................541
Clearing the MAC Address Table............................................................................................................................541
Contents
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