[ 1805.916659] br0: port 1(dummy0) entered blocking state
[ 1805.916699] br0: port 1(dummy0) entered disabled state
[ 1805.916738] dummy0: entered allmulticast mode
[ 1805.916794] dummy0: entered promiscuous mode
[ 1805.920223] br0: port 1(dummy0) entered blocking state
[ 1805.920254] br0: port 1(dummy0) entered forwarding state
[ 1806.160829] dummy0: left allmulticast mode
[ 1806.160857] dummy0: left promiscuous mode
[ 1806.160890] br0: port 1(dummy0) entered disabled state