[ 1979.786528][T28408] br0: port 1(dummy0) entered blocking state
[ 1979.786725][T28408] br0: port 1(dummy0) entered disabled state
[ 1979.786899][T28408] dummy0: entered allmulticast mode
[ 1979.787951][T28408] dummy0: entered promiscuous mode
[ 1979.815204][T28409] br0: port 1(dummy0) entered blocking state
[ 1979.815466][T28409] br0: port 1(dummy0) entered forwarding state
[ 1981.790591][   T12] dummy0: left allmulticast mode
[ 1981.790876][   T12] dummy0: left promiscuous mode
[ 1981.791091][   T12] br0: port 1(dummy0) entered disabled state