[ 2745.191661][T18918] br0: port 1(dummy0) entered blocking state
[ 2745.192325][T18918] br0: port 1(dummy0) entered disabled state
[ 2745.192494][T18918] dummy0: entered allmulticast mode
[ 2745.193383][T18918] dummy0: entered promiscuous mode
[ 2745.226590][T18919] br0: port 1(dummy0) entered blocking state
[ 2745.226796][T18919] br0: port 1(dummy0) entered forwarding state