Concept Guide

26 Intermediate System to Intermediate System.......................................................................................... 502
IS-IS Protocol Overview............................................................................................................................................... 502
IS-IS Addressing.............................................................................................................................................................502
Multi-Topology IS-IS...................................................................................................................................................... 503
Transition Mode....................................................................................................................................................... 503
Interface Support.................................................................................................................................................... 504
Adjacencies...............................................................................................................................................................504
Graceful Restart............................................................................................................................................................ 504
Timers....................................................................................................................................................................... 504
Implementation Information......................................................................................................................................... 504
Conguration Information.............................................................................................................................................505
Conguration Tasks for IS-IS................................................................................................................................. 506
Conguring the Distance of a Route......................................................................................................................513
Changing the IS-Type...............................................................................................................................................514
Redistributing IPv4 Routes......................................................................................................................................516
Redistributing IPv6 Routes......................................................................................................................................517
Conguring Authentication Passwords..................................................................................................................518
Setting the Overload Bit..........................................................................................................................................518
Debugging IS-IS........................................................................................................................................................519
IS-IS Metric Styles.........................................................................................................................................................520
Congure Metric Values............................................................................................................................................... 520
Maximum Values in the Routing Table.................................................................................................................. 520
Change the IS-IS Metric Style in One Level Only................................................................................................520
Leaks from One Level to Another..........................................................................................................................522
Sample Congurations.................................................................................................................................................. 523
27 Link Aggregation Control Protocol (LACP)...............................................................................................525
Introduction to Dynamic LAGs and LACP.................................................................................................................. 525
Important Points to Remember............................................................................................................................. 525
LACP Modes............................................................................................................................................................ 526
Conguring LACP Commands...............................................................................................................................526
LACP Conguration Tasks............................................................................................................................................ 527
Creating a LAG.........................................................................................................................................................527
Conguring the LAG Interfaces as Dynamic........................................................................................................ 527
Setting the LACP Long Timeout............................................................................................................................528
Monitoring and Debugging LACP..........................................................................................................................528
Shared LAG State Tracking.......................................................................................................................................... 529
Conguring Shared LAG State Tracking...............................................................................................................529
Important Points about Shared LAG State Tracking............................................................................................531
LACP Basic Conguration Example............................................................................................................................. 531
Congure a LAG on ALPHA....................................................................................................................................531
28 Layer 2.................................................................................................................................................... 540
Manage the MAC Address Table................................................................................................................................. 540
Clearing the MAC Address Table...........................................................................................................................540
Contents
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