[ 1989.380854][T15714] br0: port 1(dummy0) entered blocking state
[ 1989.381039][T15714] br0: port 1(dummy0) entered disabled state
[ 1989.381201][T15714] dummy0: entered allmulticast mode
[ 1989.382084][T15714] dummy0: entered promiscuous mode
[ 1989.405134][T15715] br0: port 1(dummy0) entered blocking state
[ 1989.405315][T15715] br0: port 1(dummy0) entered forwarding state
[ 1991.442945][ T4794] dummy0: left allmulticast mode
[ 1991.443182][ T4794] dummy0: left promiscuous mode
[ 1991.443480][ T4794] br0: port 1(dummy0) entered disabled state