[ 1989.332050][T23968] br0: port 1(dummy0) entered blocking state
[ 1989.332255][T23968] br0: port 1(dummy0) entered disabled state
[ 1989.332405][T23968] dummy0: entered allmulticast mode
[ 1989.333376][T23968] dummy0: entered promiscuous mode
[ 1989.362603][T23969] br0: port 1(dummy0) entered blocking state
[ 1989.362892][T23969] br0: port 1(dummy0) entered forwarding state
[ 1991.279203][   T12] dummy0: left allmulticast mode
[ 1991.279899][   T12] dummy0: left promiscuous mode
[ 1991.280144][   T12] br0: port 1(dummy0) entered disabled state