Hi ,
Can some help me on the below scenerios .
SW1 : MAC ( AA)
SW2 : MAC (BB)
SW1 fa0/1 ---------------fa0/1 SW2
1. When a STP BPDU comes out from SW1 its will have Source MAC of the egress interface ( in ethernet header ) and Port ID as fa0/1 inside BPDU
Now What happens in this case
SW 1 ----------- 3 links ------ SW2
3 links are bundled to one PO ( lets say fa0/1-3 )
1. How what will be the Source MAC and port ID in the BPDU that egress from SW1
SW 1 ----------- 3 links ------ SW2
How is the Ether-channel determines which interface should be active in the bundle .
Whether SW1 or SW2 will have this rights .
How is the ether-channel mac picked from the N number of bundled interface.
If i have fa0/1-3 in one group .
Initially the fa0/1 was active and PO MAC was this fa0/1 MAC .
Now i have shut the fa0/1 , so fa0/2 was active and PO MAC changed .
Now brought back fa0/1 . But why wtill fa0/2 is active and PO uses fa0/2 MAC