White Papers

Table Of Contents
Sample Configurations...................................................................................................................................................459
Chapter 25: Link Aggregation Control Protocol (LACP)............................................................. 462
Introduction to Dynamic LAGs and LACP.................................................................................................................462
Important Points to Remember............................................................................................................................. 462
LACP Modes...............................................................................................................................................................463
Configuring LACP Commands................................................................................................................................463
LACP Configuration Tasks............................................................................................................................................463
Creating a LAG.......................................................................................................................................................... 464
Configuring the LAG Interfaces as Dynamic...................................................................................................... 464
Setting the LACP Long Timeout........................................................................................................................... 464
Monitoring and Debugging LACP..........................................................................................................................465
Shared LAG State Tracking..........................................................................................................................................465
Configuring Shared LAG State Tracking............................................................................................................. 466
Important Points about Shared LAG State Tracking........................................................................................467
LACP Basic Configuration Example............................................................................................................................468
Configure a LAG on ALPHA....................................................................................................................................468
Chapter 26: Layer 2................................................................................................................... 476
Manage the MAC Address Table.................................................................................................................................476
Clearing the MAC Address Table.......................................................................................................................... 476
Setting the Aging Time for Dynamic Entries...................................................................................................... 476
Configuring a Static MAC Address....................................................................................................................... 477
Displaying the MAC Address Table....................................................................................................................... 477
MAC Learning Limit........................................................................................................................................................ 477
Setting the MAC Learning Limit............................................................................................................................ 478
mac learning-limit Dynamic..................................................................................................................................... 478
mac learning-limit mac-address-sticky................................................................................................................ 478
mac learning-limit station-move............................................................................................................................ 478
mac learning-limit no-station-move......................................................................................................................479
Learning Limit Violation Actions............................................................................................................................ 479
Setting Station Move Violation Actions...............................................................................................................479
Recovering from Learning Limit and Station Move Violations.......................................................................480
Disabling MAC Address Learning on the System.................................................................................................... 480
Enabling port security.................................................................................................................................................... 480
NIC Teaming..................................................................................................................................................................... 481
Configure Redundant Pairs...........................................................................................................................................482
Far-End Failure Detection.............................................................................................................................................485
FEFD State Changes................................................................................................................................................485
Configuring FEFD......................................................................................................................................................486
Enabling FEFD on an Interface...............................................................................................................................487
Debugging FEFD........................................................................................................................................................488
Chapter 27: Link Layer Discovery Protocol (LLDP).................................................................... 489
802.1AB (LLDP) Overview............................................................................................................................................489
Protocol Data Units.................................................................................................................................................. 489
Optional TLVs.................................................................................................................................................................. 490
Management TLVs....................................................................................................................................................490
TIA-1057 (LLDP-MED) Overview............................................................................................................................... 492
Contents
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