[ 1667.831920] br0: port 1(dummy0) entered blocking state
[ 1667.831958] br0: port 1(dummy0) entered disabled state
[ 1667.831990] dummy0: entered allmulticast mode
[ 1667.832029] dummy0: entered promiscuous mode
[ 1667.835097] br0: port 1(dummy0) entered blocking state
[ 1667.835123] br0: port 1(dummy0) entered forwarding state
[ 1668.048200] dummy0: left allmulticast mode
[ 1668.048246] dummy0: left promiscuous mode
[ 1668.048278] br0: port 1(dummy0) entered disabled state