[ 1963.926800][ T8188] br0: port 1(dummy0) entered blocking state
[ 1963.926983][ T8188] br0: port 1(dummy0) entered disabled state
[ 1963.927145][ T8188] dummy0: entered allmulticast mode
[ 1963.928180][ T8188] dummy0: entered promiscuous mode
[ 1963.955044][ T8189] br0: port 1(dummy0) entered blocking state
[ 1963.955524][ T8189] br0: port 1(dummy0) entered forwarding state
[ 1965.945883][   T68] dummy0: left allmulticast mode
[ 1965.946924][   T68] dummy0: left promiscuous mode
[ 1965.947169][   T68] br0: port 1(dummy0) entered disabled state