[ 1630.506428] br0: port 1(dummy0) entered blocking state
[ 1630.506471] br0: port 1(dummy0) entered disabled state
[ 1630.506509] dummy0: entered allmulticast mode
[ 1630.506564] dummy0: entered promiscuous mode
[ 1630.509141] br0: port 1(dummy0) entered blocking state
[ 1630.509211] br0: port 1(dummy0) entered forwarding state
[ 1630.691448] dummy0: left allmulticast mode
[ 1630.691486] dummy0: left promiscuous mode
[ 1630.691545] br0: port 1(dummy0) entered disabled state