[ 1886.626802] br0: port 1(dummy0) entered blocking state
[ 1886.626876] br0: port 1(dummy0) entered disabled state
[ 1886.626944] dummy0: entered allmulticast mode
[ 1886.627033] dummy0: entered promiscuous mode
[ 1886.630397] br0: port 1(dummy0) entered blocking state
[ 1886.630429] br0: port 1(dummy0) entered forwarding state
[ 1886.845007] dummy0: left allmulticast mode
[ 1886.845036] dummy0: left promiscuous mode
[ 1886.845070] br0: port 1(dummy0) entered disabled state