[ 1970.527061][T24727] br0: port 1(dummy0) entered blocking state
[ 1970.527311][T24727] br0: port 1(dummy0) entered disabled state
[ 1970.527539][T24727] dummy0: entered allmulticast mode
[ 1970.528612][T24727] dummy0: entered promiscuous mode
[ 1970.556025][T24728] br0: port 1(dummy0) entered blocking state
[ 1970.556326][T24728] br0: port 1(dummy0) entered forwarding state
[ 1972.578114][   T12] dummy0: left allmulticast mode
[ 1972.578434][   T12] dummy0: left promiscuous mode
[ 1972.579032][   T12] br0: port 1(dummy0) entered disabled state