[ 1866.192210][T32341] br0: port 1(dummy0) entered blocking state
[ 1866.192408][T32341] br0: port 1(dummy0) entered disabled state
[ 1866.192578][T32341] dummy0: entered allmulticast mode
[ 1866.193960][T32341] dummy0: entered promiscuous mode
[ 1866.213046][T32342] br0: port 1(dummy0) entered blocking state
[ 1866.213330][T32342] br0: port 1(dummy0) entered forwarding state
[ 1867.957906][   T12] dummy0: left allmulticast mode
[ 1867.958164][   T12] dummy0: left promiscuous mode
[ 1867.958390][   T12] br0: port 1(dummy0) entered disabled state