Reference Guide

Table Of Contents
Introduction to Dynamic LAGs and LACP.................................................................................................................499
Important Points to Remember............................................................................................................................. 499
LACP Modes.............................................................................................................................................................. 500
Configuring LACP Commands............................................................................................................................... 500
LACP Configuration Tasks........................................................................................................................................... 500
Creating a LAG........................................................................................................................................................... 501
Configuring the LAG Interfaces as Dynamic.......................................................................................................501
Setting the LACP Long Timeout............................................................................................................................501
Monitoring and Debugging LACP..........................................................................................................................502
Shared LAG State Tracking..........................................................................................................................................502
Configuring Shared LAG State Tracking............................................................................................................. 503
Important Points about Shared LAG State Tracking....................................................................................... 504
LACP Basic Configuration Example........................................................................................................................... 505
Configure a LAG on ALPHA................................................................................................................................... 505
Chapter 29: Layer 2................................................................................................................... 513
Manage the MAC Address Table................................................................................................................................. 513
Clearing the MAC Address Table...........................................................................................................................513
Setting the Aging Time for Dynamic Entries.......................................................................................................513
Configuring a Static MAC Address........................................................................................................................514
Displaying the MAC Address Table........................................................................................................................514
MAC Learning Limit.........................................................................................................................................................514
Setting the MAC Learning Limit.............................................................................................................................515
mac learning-limit Dynamic..................................................................................................................................... 515
mac learning-limit mac-address-sticky.................................................................................................................515
mac learning-limit station-move.............................................................................................................................515
mac learning-limit no-station-move...................................................................................................................... 516
Learning Limit Violation Actions.............................................................................................................................516
Setting Station Move Violation Actions............................................................................................................... 516
Recovering from Learning Limit and Station Move Violations........................................................................517
Disabling MAC Address Learning on the System............................................................................................... 517
Enabling port security............................................................................................................................................... 517
NIC Teaming..................................................................................................................................................................... 518
Configure Redundant Pairs........................................................................................................................................... 519
Far-End Failure Detection.............................................................................................................................................522
FEFD State Changes................................................................................................................................................522
Configuring FEFD......................................................................................................................................................523
Enabling FEFD on an Interface.............................................................................................................................. 524
Debugging FEFD....................................................................................................................................................... 525
Chapter 30: Link Layer Discovery Protocol (LLDP).................................................................... 526
802.1AB (LLDP) Overview............................................................................................................................................526
Protocol Data Units.................................................................................................................................................. 526
Optional TLVs.................................................................................................................................................................. 528
Management TLVs....................................................................................................................................................528
TIA-1057 (LLDP-MED) Overview............................................................................................................................... 529
TIA Organizationally Specific TLVs.......................................................................................................................530
Configure LLDP............................................................................................................................................................... 533
CONFIGURATION versus INTERFACE Configurations......................................................................................... 534
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Contents