Thanks for you reply Akushner.
What do you mean by first interface in the LAG ? first interface that show in "show lacp interface aeX" ? smallest interface snmp index ? first interface in manming order ? Let make it simple: which one here :
boss@device> show lacp interfaces ae209
Aggregated interface: ae209
LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
xe-10/0/6 Actor No No Yes Yes Yes Yes Fast Active
xe-10/0/6 Partner No No Yes Yes Yes Yes Slow Active
xe-10/0/7 Actor No No Yes Yes Yes Yes Fast Active
xe-10/0/7 Partner No No Yes Yes Yes Yes Slow Active
xe-10/0/8 Actor No No Yes Yes Yes Yes Fast Active
xe-10/0/8 Partner No No Yes Yes Yes Yes Slow Active
xe-9/0/0 Actor No No Yes Yes Yes Yes Fast Active
xe-9/0/0 Partner No No Yes Yes Yes Yes Slow Active
xe-9/0/4 Actor No No Yes Yes Yes Yes Fast Active
xe-9/0/4 Partner No No Yes Yes Yes Yes Slow Active
xe-9/0/8 Actor No No Yes Yes Yes Yes Fast Active
xe-9/0/8 Partner No No Yes Yes Yes Yes Slow Active
xe-10/0/0 Actor No No Yes Yes Yes Yes Fast Active
xe-10/0/0 Partner No No Yes Yes Yes Yes Slow Active
xe-9/0/7 Actor No No Yes Yes Yes Yes Fast Active
xe-9/0/7 Partner No No Yes Yes Yes Yes Slow Active
LACP protocol: Receive State Transmit State Mux State
xe-10/0/6 Current Slow periodic Collecting distributing
xe-10/0/7 Current Slow periodic Collecting distributing
xe-10/0/8 Current Slow periodic Collecting distributing
xe-9/0/0 Current Slow periodic Collecting distributing
xe-9/0/4 Current Slow periodic Collecting distributing
xe-9/0/8 Current Slow periodic Collecting distributing
xe-10/0/0 Current Slow periodic Collecting distributing
xe-9/0/7 Current Slow periodic Collecting distributing
Other question :
What happen when this interface flap ? does the BPDU rollback to this interface ? or it stays to the next one ?
Thanks
Salah