[ 2080.192963][ T2440] br0: port 1(dummy0) entered blocking state
[ 2080.193170][ T2440] br0: port 1(dummy0) entered disabled state
[ 2080.193342][ T2440] dummy0: entered allmulticast mode
[ 2080.194736][ T2440] dummy0: entered promiscuous mode
[ 2080.220765][ T2441] br0: port 1(dummy0) entered blocking state
[ 2080.221010][ T2441] br0: port 1(dummy0) entered forwarding state
[ 2082.164214][   T12] dummy0: left allmulticast mode
[ 2082.164504][   T12] dummy0: left promiscuous mode
[ 2082.164725][   T12] br0: port 1(dummy0) entered disabled state