[ 1784.528941] br0: port 1(dummy0) entered blocking state
[ 1784.529013] br0: port 1(dummy0) entered disabled state
[ 1784.529081] dummy0: entered allmulticast mode
[ 1784.529165] dummy0: entered promiscuous mode
[ 1784.532874] br0: port 1(dummy0) entered blocking state
[ 1784.532906] br0: port 1(dummy0) entered forwarding state
[ 1784.783431] dummy0: left allmulticast mode
[ 1784.783497] dummy0: left promiscuous mode
[ 1784.783564] br0: port 1(dummy0) entered disabled state