Administrator Guide

Graceful Restart............................................................................................................................................................. 421
Timers.......................................................................................................................................................................421
Implementation Information............................................................................................................................................ 421
Conguration Information...............................................................................................................................................422
Conguration Tasks for IS-IS....................................................................................................................................422
IS-IS Metric Styles......................................................................................................................................................... 436
Congure Metric Values.................................................................................................................................................436
Maximum Values in the Routing Table...................................................................................................................... 437
Change the IS-IS Metric Style in One Level Only......................................................................................................437
Leaks from One Level to Another.............................................................................................................................438
Sample Congurations................................................................................................................................................... 439
28 Link Aggregation Control Protocol (LACP)................................................................ 444
Introduction to Dynamic LAGs and LACP.......................................................................................................................444
Important Points to Remember................................................................................................................................ 444
LACP Modes............................................................................................................................................................445
Conguring LACP Commands................................................................................................................................. 445
LACP Conguration Tasks..............................................................................................................................................446
Creating a LAG.........................................................................................................................................................446
Conguring the LAG Interfaces as Dynamic.............................................................................................................446
Setting the LACP Long Timeout...............................................................................................................................447
Shared LAG State Tracking............................................................................................................................................ 448
Conguring Shared LAG State Tracking......................................................................................................................... 448
Important Points about Shared LAG State Tracking................................................................................................. 449
LACP Basic Conguration Example................................................................................................................................450
Congure a LAG on ALPHA..................................................................................................................................... 450
29 Layer 2......................................................................................................................458
Manage the MAC Address Table....................................................................................................................................458
Clearing the MAC Address Table..............................................................................................................................458
Setting the Aging Time for Dynamic Entries.............................................................................................................458
Conguring a Static MAC Address...........................................................................................................................459
Displaying the MAC Address Table........................................................................................................................... 459
MAC Learning Limit........................................................................................................................................................459
Setting the MAC Learning Limit............................................................................................................................... 460
mac learning-limit Dynamic...................................................................................................................................... 460
mac learning-limit station-move............................................................................................................................... 460
Learning Limit Violation Actions................................................................................................................................460
Setting Station Move Violation Actions....................................................................................................................460
Recovering from Learning Limit and Station Move Violations....................................................................................461
NIC Teaming................................................................................................................................................................... 461
MAC Move Optimization..........................................................................................................................................463
30 Link Layer Discovery Protocol (LLDP).......................................................................464
802.1AB (LLDP) Overview............................................................................................................................................. 464
Protocol Data Units..................................................................................................................................................464
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