Can any one help me in identifying this issue. I have four core switches two in A side and two in B side.
A side running with
layer 3 and layer 2 switche
B side running with
layer 3 and layer 2 switches
In q site suddenly the whole network goes down for a minute or two and again it come back. When i traced the core switch I found its pointing to another switch which is creating a topology changes and when I traced the switch I did not find any topology change initiator.
bridge forward delay 15(15) sec
topology change initiator: 3/3
last topology change occured: Thu Jul 2 2009, 07:45:57
topology change FALSE
topology change time 35
topology change detected FALSE
topology change count 2508241
topology change last recvd. from 00-02-fd-7f-d4-b1
Here it tells me initiator is 3/3 which is a switch when I go to this switch I did not find the MAC 00-02-fd-7f-d4-b1 . Any thoughts ?