[ 2052.226195][T20963] br0: port 1(dummy0) entered blocking state
[ 2052.226394][T20963] br0: port 1(dummy0) entered disabled state
[ 2052.226552][T20963] dummy0: entered allmulticast mode
[ 2052.227418][T20963] dummy0: entered promiscuous mode
[ 2052.250078][T20964] br0: port 1(dummy0) entered blocking state
[ 2052.250328][T20964] br0: port 1(dummy0) entered forwarding state
[ 2054.246934][   T69] dummy0: left allmulticast mode
[ 2054.247628][   T69] dummy0: left promiscuous mode
[ 2054.247865][   T69] br0: port 1(dummy0) entered disabled state