Administrator Guide

Sample Configurations......................................................................................................................................................392
24 Link Aggregation Control Protocol (LACP)................................................................................395
Introduction to Dynamic LAGs and LACP......................................................................................................................395
Important Points to Remember.................................................................................................................................395
LACP Modes................................................................................................................................................................395
Configuring LACP Commands...................................................................................................................................396
LACP Configuration Tasks...............................................................................................................................................396
Creating a LAG............................................................................................................................................................ 396
Configuring the LAG Interfaces as Dynamic............................................................................................................397
Setting the LACP Long Timeout............................................................................................................................... 397
Monitoring and Debugging LACP..............................................................................................................................398
Shared LAG State Tracking............................................................................................................................................. 398
Configuring Shared LAG State Tracking..................................................................................................................399
Important Points about Shared LAG State Tracking..............................................................................................400
LACP Basic Configuration Example................................................................................................................................400
Configure a LAG on ALPHA.......................................................................................................................................400
25 Layer 2.................................................................................................................................. 408
Manage the MAC Address Table.................................................................................................................................... 408
Clearing the MAC Address Table.............................................................................................................................. 408
Setting the Aging Time for Dynamic Entries........................................................................................................... 408
Configuring a Static MAC Address........................................................................................................................... 408
Displaying the MAC Address Table...........................................................................................................................409
MAC Learning Limit.......................................................................................................................................................... 409
Setting the MAC Learning Limit................................................................................................................................409
mac learning-limit Dynamic......................................................................................................................................... 410
mac learning-limit mac-address-sticky......................................................................................................................410
mac learning-limit station-move.................................................................................................................................410
mac learning-limit no-station-move...........................................................................................................................410
Learning Limit Violation Actions.................................................................................................................................. 411
Setting Station Move Violation Actions..................................................................................................................... 411
Recovering from Learning Limit and Station Move Violations................................................................................411
Disabling MAC Address Learning on the System.....................................................................................................412
Enabling port security.................................................................................................................................................. 412
NIC Teaming....................................................................................................................................................................... 412
Configure Redundant Pairs...............................................................................................................................................413
Far-End Failure Detection.................................................................................................................................................416
FEFD State Changes................................................................................................................................................... 416
Configuring FEFD......................................................................................................................................................... 417
Enabling FEFD on an Interface...................................................................................................................................418
Debugging FEFD.......................................................................................................................................................... 418
26 Link Layer Discovery Protocol (LLDP)...................................................................................... 420
802.1AB (LLDP) Overview...............................................................................................................................................420
Protocol Data Units.....................................................................................................................................................420
Optional TLVs..................................................................................................................................................................... 421
Management TLVs.......................................................................................................................................................421
TIA-1057 (LLDP-MED) Overview................................................................................................................................... 422
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Contents