[ 1955.343203][ T4363] br0: port 1(dummy0) entered blocking state
[ 1955.343457][ T4363] br0: port 1(dummy0) entered disabled state
[ 1955.343688][ T4363] dummy0: entered allmulticast mode
[ 1955.344674][ T4363] dummy0: entered promiscuous mode
[ 1955.371648][ T4364] br0: port 1(dummy0) entered blocking state
[ 1955.371935][ T4364] br0: port 1(dummy0) entered forwarding state
[ 1957.306234][   T12] dummy0: left allmulticast mode
[ 1957.306464][   T12] dummy0: left promiscuous mode
[ 1957.306806][   T12] br0: port 1(dummy0) entered disabled state