[ 1635.819619] br0: port 1(dummy0) entered blocking state
[ 1635.819659] br0: port 1(dummy0) entered disabled state
[ 1635.819692] dummy0: entered allmulticast mode
[ 1635.819737] dummy0: entered promiscuous mode
[ 1635.822536] br0: port 1(dummy0) entered blocking state
[ 1635.822596] br0: port 1(dummy0) entered forwarding state
[ 1636.000343] dummy0: left allmulticast mode
[ 1636.000376] dummy0: left promiscuous mode
[ 1636.000461] br0: port 1(dummy0) entered disabled state