Users Guide

23 Intermediate System to Intermediate System...........................................................................................424
IS-IS Protocol Overview................................................................................................................................................424
IS-IS Addressing.............................................................................................................................................................424
Multi-Topology IS-IS...................................................................................................................................................... 425
Transition Mode....................................................................................................................................................... 425
Interface Support.....................................................................................................................................................425
Adjacencies...............................................................................................................................................................426
Graceful Restart.............................................................................................................................................................426
Timers........................................................................................................................................................................426
Implementation Information..........................................................................................................................................426
Conguration Information............................................................................................................................................. 427
Conguration Tasks for IS-IS.................................................................................................................................. 427
Conguring the Distance of a Route.....................................................................................................................435
Changing the IS-Type.............................................................................................................................................. 436
Redistributing IPv4 Routes.....................................................................................................................................438
Redistributing IPv6 Routes.....................................................................................................................................439
Conguring Authentication Passwords.................................................................................................................440
Setting the Overload Bit......................................................................................................................................... 440
Debugging IS-IS........................................................................................................................................................441
IS-IS Metric Styles.........................................................................................................................................................442
Congure Metric Values................................................................................................................................................442
Maximum Values in the Routing Table...................................................................................................................443
Change the IS-IS Metric Style in One Level Only................................................................................................443
Leaks from One Level to Another..........................................................................................................................444
Sample Congurations.................................................................................................................................................. 445
24 Link Aggregation Control Protocol (LACP).............................................................................................. 448
Introduction to Dynamic LAGs and LACP.................................................................................................................. 448
Important Points to Remember............................................................................................................................. 448
LACP Modes............................................................................................................................................................ 449
Conguring LACP Commands............................................................................................................................... 449
LACP Conguration Tasks............................................................................................................................................450
Creating a LAG.........................................................................................................................................................450
Conguring the LAG Interfaces as Dynamic........................................................................................................450
Setting the LACP Long Timeout............................................................................................................................ 451
Monitoring and Debugging LACP...........................................................................................................................451
Shared LAG State Tracking.......................................................................................................................................... 452
Conguring Shared LAG State Tracking...............................................................................................................452
Important Points about Shared LAG State Tracking...........................................................................................453
LACP Basic Conguration Example............................................................................................................................ 454
Congure a LAG on ALPHA................................................................................................................................... 454
25 Layer 2.....................................................................................................................................................463
Manage the MAC Address Table................................................................................................................................. 463
Clearing the MAC Address Table........................................................................................................................... 463
Setting the Aging Time for Dynamic Entries........................................................................................................463
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Contents