[ 1628.998525] br0: port 1(dummy0) entered blocking state
[ 1628.998596] br0: port 1(dummy0) entered disabled state
[ 1628.998663] dummy0: entered allmulticast mode
[ 1628.998744] dummy0: entered promiscuous mode
[ 1629.001552] br0: port 1(dummy0) entered blocking state
[ 1629.001584] br0: port 1(dummy0) entered forwarding state
[ 1629.196050] dummy0: left allmulticast mode
[ 1629.196080] dummy0: left promiscuous mode
[ 1629.196117] br0: port 1(dummy0) entered disabled state