[ 1936.026029] br0: port 1(dummy0) entered blocking state
[ 1936.026059] br0: port 1(dummy0) entered disabled state
[ 1936.026102] dummy0: entered allmulticast mode
[ 1936.026158] dummy0: entered promiscuous mode
[ 1936.029986] br0: port 1(dummy0) entered blocking state
[ 1936.030044] br0: port 1(dummy0) entered forwarding state
[ 1936.295055] dummy0: left allmulticast mode
[ 1936.295090] dummy0: left promiscuous mode
[ 1936.295134] br0: port 1(dummy0) entered disabled state