[ 1659.230403] br0: port 1(dummy0) entered blocking state
[ 1659.230450] br0: port 1(dummy0) entered disabled state
[ 1659.230486] dummy0: entered allmulticast mode
[ 1659.230537] dummy0: entered promiscuous mode
[ 1659.233031] br0: port 1(dummy0) entered blocking state
[ 1659.233065] br0: port 1(dummy0) entered forwarding state
[ 1659.411956] dummy0: left allmulticast mode
[ 1659.412014] dummy0: left promiscuous mode
[ 1659.412049] br0: port 1(dummy0) entered disabled state