Administrator Guide

28 Link Aggregation Control Protocol (LACP).............................................................................................. 500
Introduction to Dynamic LAGs and LACP.................................................................................................................. 500
Important Points to Remember............................................................................................................................. 500
LACP Modes.............................................................................................................................................................501
Conguring LACP Commands................................................................................................................................501
LACP Conguration Tasks............................................................................................................................................502
Creating a LAG.........................................................................................................................................................502
Conguring the LAG Interfaces as Dynamic........................................................................................................502
Setting the LACP Long Timeout........................................................................................................................... 503
Monitoring and Debugging LACP..........................................................................................................................503
Shared LAG State Tracking.......................................................................................................................................... 504
Conguring Shared LAG State Tracking...............................................................................................................504
Important Points about Shared LAG State Tracking...........................................................................................506
LACP Basic Conguration Example............................................................................................................................ 506
Congure a LAG on ALPHA...................................................................................................................................506
29 Layer 2..................................................................................................................................................... 515
Manage the MAC Address Table..................................................................................................................................515
Clearing the MAC Address Table............................................................................................................................515
Setting the Aging Time for Dynamic Entries.........................................................................................................515
Conguring a Static MAC Address.........................................................................................................................516
Displaying the MAC Address Table.........................................................................................................................516
MAC Learning Limit........................................................................................................................................................516
Setting the MAC Learning Limit............................................................................................................................. 517
mac learning-limit Dynamic......................................................................................................................................517
mac learning-limit mac-address-sticky.................................................................................................................. 517
mac learning-limit station-move............................................................................................................................. 518
mac learning-limit no-station-move....................................................................................................................... 518
Learning Limit Violation Actions..............................................................................................................................518
Setting Station Move Violation Actions.................................................................................................................519
Recovering from Learning Limit and Station Move Violations............................................................................519
Disabling MAC Address Learning on the System.................................................................................................520
NIC Teaming................................................................................................................................................................... 520
Congure Redundant Pairs........................................................................................................................................... 521
Important Points about Conguring Redundant Pairs........................................................................................ 523
Far-End Failure Detection............................................................................................................................................. 524
FEFD State Changes...............................................................................................................................................525
Conguring FEFD.................................................................................................................................................... 526
Enabling FEFD on an Interface...............................................................................................................................526
Debugging FEFD...................................................................................................................................................... 527
30 Link Layer Discovery Protocol (LLDP)..................................................................................................... 529
802.1AB (LLDP) Overview............................................................................................................................................529
Protocol Data Units................................................................................................................................................. 529
Optional TLVs.................................................................................................................................................................530
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Contents