[ 1766.202553] br0: port 1(dummy0) entered blocking state
[ 1766.202590] br0: port 1(dummy0) entered disabled state
[ 1766.202628] dummy0: entered allmulticast mode
[ 1766.202678] dummy0: entered promiscuous mode
[ 1766.205522] br0: port 1(dummy0) entered blocking state
[ 1766.205594] br0: port 1(dummy0) entered forwarding state
[ 1766.398501] dummy0: left allmulticast mode
[ 1766.398566] dummy0: left promiscuous mode
[ 1766.398633] br0: port 1(dummy0) entered disabled state