[ 2126.728880][ T6671] br0: port 1(dummy0) entered blocking state
[ 2126.729987][ T6671] br0: port 1(dummy0) entered disabled state
[ 2126.730206][ T6671] dummy0: entered allmulticast mode
[ 2126.731158][ T6671] dummy0: entered promiscuous mode
[ 2126.770548][ T6672] br0: port 1(dummy0) entered blocking state
[ 2126.770722][ T6672] br0: port 1(dummy0) entered forwarding state
[ 2128.721651][   T12] dummy0: left allmulticast mode
[ 2128.721841][   T12] dummy0: left promiscuous mode
[ 2128.722241][   T12] br0: port 1(dummy0) entered disabled state