[ 1636.350793] br0: port 1(dummy0) entered blocking state
[ 1636.350829] br0: port 1(dummy0) entered disabled state
[ 1636.350869] dummy0: entered allmulticast mode
[ 1636.350916] dummy0: entered promiscuous mode
[ 1636.353643] br0: port 1(dummy0) entered blocking state
[ 1636.353673] br0: port 1(dummy0) entered forwarding state
[ 1636.534067] dummy0: left allmulticast mode
[ 1636.534099] dummy0: left promiscuous mode
[ 1636.534154] br0: port 1(dummy0) entered disabled state