[ 1729.421982] br0: port 1(dummy0) entered blocking state
[ 1729.422020] br0: port 1(dummy0) entered disabled state
[ 1729.422055] dummy0: entered allmulticast mode
[ 1729.422110] dummy0: entered promiscuous mode
[ 1729.425720] br0: port 1(dummy0) entered blocking state
[ 1729.425784] br0: port 1(dummy0) entered forwarding state
[ 1729.697983] dummy0: left allmulticast mode
[ 1729.698019] dummy0: left promiscuous mode
[ 1729.698051] br0: port 1(dummy0) entered disabled state