[ 3924.021083] br0: port 1(dummy0) entered blocking state
[ 3924.030975] br0: port 1(dummy0) entered disabled state
[ 3924.032684] device dummy0 entered promiscuous mode
[ 3924.213353] br0: port 1(dummy0) entered blocking state
[ 3924.214839] br0: port 1(dummy0) entered forwarding state
[ 3924.813721] br0: port 1(dummy0) entered disabled state
[ 3925.133984] device dummy0 left promiscuous mode
[ 3925.135296] br0: port 1(dummy0) entered disabled state