[ 1627.200754] br0: port 1(dummy0) entered blocking state
[ 1627.200793] br0: port 1(dummy0) entered disabled state
[ 1627.200831] dummy0: entered allmulticast mode
[ 1627.200882] dummy0: entered promiscuous mode
[ 1627.203737] br0: port 1(dummy0) entered blocking state
[ 1627.203803] br0: port 1(dummy0) entered forwarding state
[ 1627.393633] dummy0: left allmulticast mode
[ 1627.393659] dummy0: left promiscuous mode
[ 1627.393691] br0: port 1(dummy0) entered disabled state