[ 1803.735720] br0: port 1(dummy0) entered blocking state
[ 1803.735793] br0: port 1(dummy0) entered disabled state
[ 1803.735860] dummy0: entered allmulticast mode
[ 1803.735944] dummy0: entered promiscuous mode
[ 1803.739310] br0: port 1(dummy0) entered blocking state
[ 1803.739341] br0: port 1(dummy0) entered forwarding state