[ 1725.681437] br0: port 1(dummy0) entered blocking state
[ 1725.681511] br0: port 1(dummy0) entered disabled state
[ 1725.681581] dummy0: entered allmulticast mode
[ 1725.681668] dummy0: entered promiscuous mode
[ 1725.685333] br0: port 1(dummy0) entered blocking state
[ 1725.685368] br0: port 1(dummy0) entered forwarding state
[ 1725.945214] dummy0: left allmulticast mode
[ 1725.945282] dummy0: left promiscuous mode
[ 1725.945349] br0: port 1(dummy0) entered disabled state