White Papers

Change the IS-IS Metric Style in One Level Only................................................................................................ 501
Leaks from One Level to Another..........................................................................................................................503
Sample Congurations..................................................................................................................................................504
28 Link Aggregation Control Protocol (LACP).............................................................................................. 506
Introduction to Dynamic LAGs and LACP.................................................................................................................. 506
Important Points to Remember............................................................................................................................. 506
LACP Modes............................................................................................................................................................ 507
Conguring LACP Commands............................................................................................................................... 507
LACP Conguration Tasks............................................................................................................................................508
Creating a LAG.........................................................................................................................................................508
Conguring the LAG Interfaces as Dynamic........................................................................................................508
Setting the LACP Long Timeout........................................................................................................................... 509
Monitoring and Debugging LACP..........................................................................................................................509
Shared LAG State Tracking...........................................................................................................................................510
Conguring Shared LAG State Tracking................................................................................................................510
Important Points about Shared LAG State Tracking............................................................................................512
LACP Basic Conguration Example............................................................................................................................. 512
Congure a LAG on ALPHA.................................................................................................................................... 512
29 Layer 2..................................................................................................................................................... 521
Manage the MAC Address Table..................................................................................................................................521
Clearing the MAC Address Table............................................................................................................................521
Setting the Aging Time for Dynamic Entries.........................................................................................................521
Conguring a Static MAC Address........................................................................................................................522
Displaying the MAC Address Table........................................................................................................................ 522
MAC Learning Limit.......................................................................................................................................................522
Setting the MAC Learning Limit............................................................................................................................ 523
mac learning-limit Dynamic.....................................................................................................................................523
mac learning-limit mac-address-sticky................................................................................................................. 523
mac learning-limit station-move.............................................................................................................................524
mac learning-limit no-station-move.......................................................................................................................524
Learning Limit Violation Actions............................................................................................................................. 524
Setting Station Move Violation Actions................................................................................................................ 525
Recovering from Learning Limit and Station Move Violations........................................................................... 525
Disabling MAC Address Learning on the System.................................................................................................526
NIC Teaming................................................................................................................................................................... 526
Congure Redundant Pairs...........................................................................................................................................527
Important Points about Conguring Redundant Pairs........................................................................................ 529
Far-End Failure Detection.............................................................................................................................................530
FEFD State Changes................................................................................................................................................531
Conguring FEFD.................................................................................................................................................... 532
Enabling FEFD on an Interface...............................................................................................................................532
Debugging FEFD......................................................................................................................................................533
30 Link Layer Discovery Protocol (LLDP)..................................................................................................... 535
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Contents