Concept Guide

Congure a LAG on ALPHA................................................................................................................................... 457
25 Layer 2.................................................................................................................................................... 466
Manage the MAC Address Table................................................................................................................................. 466
Clearing the MAC Address Table........................................................................................................................... 466
Setting the Aging Time for Dynamic Entries........................................................................................................466
Conguring a Static MAC Address........................................................................................................................ 467
Displaying the MAC Address Table........................................................................................................................ 467
MAC Learning Limit....................................................................................................................................................... 467
Setting the MAC Learning Limit............................................................................................................................ 468
mac learning-limit Dynamic.....................................................................................................................................468
mac learning-limit mac-address-sticky................................................................................................................. 468
mac learning-limit station-move............................................................................................................................ 469
mac learning-limit no-station-move...................................................................................................................... 469
Learning Limit Violation Actions.............................................................................................................................469
Setting Station Move Violation Actions................................................................................................................ 470
Recovering from Learning Limit and Station Move Violations........................................................................... 470
Disabling MAC Address Learning on the System..................................................................................................471
Enabling port security.............................................................................................................................................. 471
NIC Teaming.................................................................................................................................................................... 471
Congure Redundant Pairs...........................................................................................................................................472
Important Points about Conguring Redundant Pairs.........................................................................................474
Far-End Failure Detection............................................................................................................................................. 475
FEFD State Changes...............................................................................................................................................476
Conguring FEFD.....................................................................................................................................................477
Enabling FEFD on an Interface...............................................................................................................................477
Debugging FEFD...................................................................................................................................................... 478
26 Link Layer Discovery Protocol (LLDP)..................................................................................................... 480
802.1AB (LLDP) Overview............................................................................................................................................480
Protocol Data Units................................................................................................................................................. 480
Optional TLVs..................................................................................................................................................................481
Management TLVs................................................................................................................................................... 481
TIA-1057 (LLDP-MED) Overview................................................................................................................................ 483
TIA Organizationally Specic TLVs........................................................................................................................ 483
Congure LLDP..............................................................................................................................................................487
Related Conguration Tasks................................................................................................................................... 487
Important Points to Remember..............................................................................................................................487
LLDP Compatibility..................................................................................................................................................488
CONFIGURATION versus INTERFACE Congurations............................................................................................ 488
Enabling LLDP................................................................................................................................................................488
Disabling and Undoing LLDP.................................................................................................................................. 489
Enabling LLDP on Management Ports........................................................................................................................489
Disabling and Undoing LLDP on Management Ports.......................................................................................... 489
Advertising TLVs............................................................................................................................................................ 489
Storing and Viewing Unrecognized LLDP TLVs..........................................................................................................491
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Contents