Administrator Guide

23 Intermediate System to Intermediate System.......................................................................................... 399
IS-IS Protocol Overview............................................................................................................................................... 399
IS-IS Addressing.............................................................................................................................................................399
Multi-Topology IS-IS...................................................................................................................................................... 400
Transition Mode....................................................................................................................................................... 400
Interface Support..................................................................................................................................................... 401
Adjacencies............................................................................................................................................................... 401
Graceful Restart............................................................................................................................................................. 401
Timers........................................................................................................................................................................ 401
Implementation Information.......................................................................................................................................... 401
Conguration Information.............................................................................................................................................402
Conguration Tasks for IS-IS..................................................................................................................................403
Conguring the Distance of a Route......................................................................................................................410
Changing the IS-Type................................................................................................................................................411
Redistributing IPv4 Routes......................................................................................................................................413
Redistributing IPv6 Routes......................................................................................................................................414
Conguring Authentication Passwords..................................................................................................................415
Setting the Overload Bit..........................................................................................................................................415
Debugging IS-IS........................................................................................................................................................416
IS-IS Metric Styles..........................................................................................................................................................417
Congure Metric Values................................................................................................................................................ 417
Maximum Values in the Routing Table................................................................................................................... 417
Change the IS-IS Metric Style in One Level Only.................................................................................................417
Leaks from One Level to Another...........................................................................................................................419
Sample Congurations.................................................................................................................................................. 420
24 Link Aggregation Control Protocol (LACP)...............................................................................................422
Introduction to Dynamic LAGs and LACP...................................................................................................................422
Important Points to Remember..............................................................................................................................422
LACP Modes............................................................................................................................................................ 423
Conguring LACP Commands............................................................................................................................... 423
LACP Conguration Tasks............................................................................................................................................ 424
Creating a LAG.........................................................................................................................................................424
Conguring the LAG Interfaces as Dynamic........................................................................................................ 424
Setting the LACP Long Timeout............................................................................................................................425
Monitoring and Debugging LACP..........................................................................................................................425
Shared LAG State Tracking.......................................................................................................................................... 426
Conguring Shared LAG State Tracking............................................................................................................... 426
Important Points about Shared LAG State Tracking........................................................................................... 428
LACP Basic Conguration Example.............................................................................................................................428
Congure a LAG on ALPHA................................................................................................................................... 428
25 Layer 2.....................................................................................................................................................437
Manage the MAC Address Table..................................................................................................................................437
Clearing the MAC Address Table............................................................................................................................437
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