Concept Guide

Conguring Shared LAG State Tracking...............................................................................................................526
Important Points about Shared LAG State Tracking........................................................................................... 528
LACP Basic Conguration Example............................................................................................................................ 528
Congure a LAG on ALPHA................................................................................................................................... 528
27 Layer 2..................................................................................................................................................... 537
Manage the MAC Address Table................................................................................................................................. 537
Clearing the MAC Address Table........................................................................................................................... 537
Setting the Aging Time for Dynamic Entries........................................................................................................ 537
Conguring a Static MAC Address........................................................................................................................538
Displaying the MAC Address Table........................................................................................................................ 538
MAC Learning Limit.......................................................................................................................................................538
Setting the MAC Learning Limit............................................................................................................................ 539
mac learning-limit Dynamic.................................................................................................................................... 539
mac learning-limit mac-address-sticky................................................................................................................. 539
mac learning-limit station-move............................................................................................................................ 540
mac learning-limit no-station-move...................................................................................................................... 540
Learning Limit Violation Actions.............................................................................................................................540
Setting Station Move Violation Actions.................................................................................................................541
Recovering from Learning Limit and Station Move Violations............................................................................541
Disabling MAC Address Learning on the System.................................................................................................542
Enabling port security............................................................................................................................................. 542
NIC Teaming................................................................................................................................................................... 542
Congure Redundant Pairs...........................................................................................................................................543
Important Points about Conguring Redundant Pairs........................................................................................ 545
Far-End Failure Detection.............................................................................................................................................546
FEFD State Changes...............................................................................................................................................547
Conguring FEFD.................................................................................................................................................... 548
Enabling FEFD on an Interface.............................................................................................................................. 548
Debugging FEFD......................................................................................................................................................549
28 Link Layer Discovery Protocol (LLDP)......................................................................................................551
802.1AB (LLDP) Overview............................................................................................................................................ 551
Protocol Data Units..................................................................................................................................................551
Optional TLVs.................................................................................................................................................................552
Management TLVs.................................................................................................................................................. 552
TIA-1057 (LLDP-MED) Overview................................................................................................................................ 554
TIA Organizationally Specic TLVs........................................................................................................................ 554
Congure LLDP............................................................................................................................................................. 558
Related Conguration Tasks...................................................................................................................................558
Important Points to Remember............................................................................................................................. 558
LLDP Compatibility..................................................................................................................................................559
CONFIGURATION versus INTERFACE Congurations............................................................................................559
Enabling LLDP................................................................................................................................................................559
Disabling and Undoing LLDP..................................................................................................................................560
Enabling LLDP on Management Ports........................................................................................................................560
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Contents