[ 2053.580518][T13106] br0: port 1(dummy0) entered blocking state
[ 2053.580764][T13106] br0: port 1(dummy0) entered disabled state
[ 2053.581018][T13106] dummy0: entered allmulticast mode
[ 2053.582096][T13106] dummy0: entered promiscuous mode
[ 2053.629227][T13107] br0: port 1(dummy0) entered blocking state
[ 2053.629847][T13107] br0: port 1(dummy0) entered forwarding state
[ 2056.027346][   T12] dummy0: left allmulticast mode
[ 2056.027513][   T12] dummy0: left promiscuous mode
[ 2056.027738][   T12] br0: port 1(dummy0) entered disabled state