[ 1627.266933] br0: port 1(dummy0) entered blocking state
[ 1627.267004] br0: port 1(dummy0) entered disabled state
[ 1627.267070] dummy0: entered allmulticast mode
[ 1627.267154] dummy0: entered promiscuous mode
[ 1627.270031] br0: port 1(dummy0) entered blocking state
[ 1627.270062] br0: port 1(dummy0) entered forwarding state
[ 1627.463697] dummy0: left allmulticast mode
[ 1627.463734] dummy0: left promiscuous mode
[ 1627.463766] br0: port 1(dummy0) entered disabled state