% Recommended aging time for all vlans is atleast three times the activity interval
Dist−VSS# clear mac−address−table dynamic
% MAC entries cleared.
Dist−VSS# show mac−address−table synchronize statistics
MAC Entry Out−of−band Synchronization Feature Statistics:
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
Switch [1] Module [4]
−−−−−−−−−−−−−−−−−−−−−
Module Status:
Statistics collected from Switch/Module : 1/4
Number of L2 asics in this module : 1
Global Status:
Status of feature enabled on the switch : on
Default activity time : 160
Configured current activity time : 480
VSS Terminology
Virtual Switch Link (VSL)A special port channel required to bundle two physical switches into
one virtual switch.
•
VSL Protocol (VSLP)Runs between active and standby switch over the VSL, and has two
components: LMP and RRP
Link Management Protocol (LMP)Runs over each individual link in VSL♦
Role Resolution Protocol (RRP)Runs on each side (each peer) of the VSL port channel♦
•
Capacity Planning for VSL
Ideally in dual−homed VSS configuration, no data traffic is sent on the VSL link. Each switch is programmed
to choose its local interfaces for traffic forwarding.
Additional VSL link capacity planning is required for traffic carried by:
Single homed devices•
Remote SPAN from one switch to another•
Service module traffic †FWSM, ACE, etc.•
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