Administrator Guide

Sample Configurations................................................................................................................................................... 410
Chapter 24: Link Aggregation Control Protocol (LACP)..............................................................413
Introduction to Dynamic LAGs and LACP..................................................................................................................413
Important Points to Remember..............................................................................................................................413
LACP Modes............................................................................................................................................................... 414
Configuring LACP Commands................................................................................................................................ 414
LACP Configuration Tasks.............................................................................................................................................414
Creating a LAG........................................................................................................................................................... 415
Configuring the LAG Interfaces as Dynamic....................................................................................................... 415
Setting the LACP Long Timeout............................................................................................................................ 416
Monitoring and Debugging LACP...........................................................................................................................416
Shared LAG State Tracking...........................................................................................................................................416
Configuring Shared LAG State Tracking.............................................................................................................. 417
Important Points about Shared LAG State Tracking........................................................................................ 418
LACP Basic Configuration Example.............................................................................................................................419
Configure a LAG on ALPHA.................................................................................................................................... 419
Chapter 25: Layer 2................................................................................................................... 427
Manage the MAC Address Table.................................................................................................................................427
Clearing the MAC Address Table...........................................................................................................................427
Setting the Aging Time for Dynamic Entries...................................................................................................... 427
Configuring a Static MAC Address.......................................................................................................................428
Displaying the MAC Address Table.......................................................................................................................428
MAC Learning Limit........................................................................................................................................................428
Setting the MAC Learning Limit............................................................................................................................ 429
mac learning-limit Dynamic..................................................................................................................................... 429
mac learning-limit mac-address-sticky................................................................................................................ 429
mac learning-limit station-move............................................................................................................................ 429
mac learning-limit no-station-move......................................................................................................................430
Learning Limit Violation Actions............................................................................................................................ 430
Setting Station Move Violation Actions...............................................................................................................430
Recovering from Learning Limit and Station Move Violations........................................................................431
Disabling MAC Address Learning on the System...............................................................................................431
Enabling port security.............................................................................................................................................. 432
NIC Teaming.....................................................................................................................................................................432
Configure Redundant Pairs...........................................................................................................................................433
Far-End Failure Detection.............................................................................................................................................436
FEFD State Changes................................................................................................................................................436
Configuring FEFD...................................................................................................................................................... 437
Enabling FEFD on an Interface.............................................................................................................................. 438
Debugging FEFD........................................................................................................................................................439
Chapter 26: Link Layer Discovery Protocol (LLDP).................................................................... 440
802.1AB (LLDP) Overview............................................................................................................................................440
Protocol Data Units.................................................................................................................................................. 440
Optional TLVs...................................................................................................................................................................442
Management TLVs....................................................................................................................................................442
TIA-1057 (LLDP-MED) Overview................................................................................................................................443
14
Contents