[ 1729.959764] br0: port 1(dummy0) entered blocking state
[ 1729.959797] br0: port 1(dummy0) entered disabled state
[ 1729.959830] dummy0: entered allmulticast mode
[ 1729.959883] dummy0: entered promiscuous mode
[ 1729.963499] br0: port 1(dummy0) entered blocking state
[ 1729.963568] br0: port 1(dummy0) entered forwarding state
[ 1730.221789] dummy0: left allmulticast mode
[ 1730.221824] dummy0: left promiscuous mode
[ 1730.221854] br0: port 1(dummy0) entered disabled state