[ 2287.478090][T20801] br0: port 1(dummy0) entered blocking state
[ 2287.478318][T20801] br0: port 1(dummy0) entered disabled state
[ 2287.478533][T20801] dummy0: entered allmulticast mode
[ 2287.480083][T20801] dummy0: entered promiscuous mode
[ 2287.508297][T20802] br0: port 1(dummy0) entered blocking state
[ 2287.508737][T20802] br0: port 1(dummy0) entered forwarding state
[ 2289.859287][   T69] dummy0: left allmulticast mode
[ 2289.859715][   T69] dummy0: left promiscuous mode
[ 2289.859940][   T69] br0: port 1(dummy0) entered disabled state