[ 2052.692314] br0: port 1(dummy0) entered blocking state
[ 2052.692396] br0: port 1(dummy0) entered disabled state
[ 2052.692465] dummy0: entered allmulticast mode
[ 2052.692546] dummy0: entered promiscuous mode
[ 2052.695975] br0: port 1(dummy0) entered blocking state
[ 2052.696006] br0: port 1(dummy0) entered forwarding state
[ 2052.935595] dummy0: left allmulticast mode
[ 2052.935631] dummy0: left promiscuous mode
[ 2052.935712] br0: port 1(dummy0) entered disabled state