[ 2146.089710][T31882] br0: port 1(dummy0) entered blocking state
[ 2146.089916][T31882] br0: port 1(dummy0) entered disabled state
[ 2146.090092][T31882] dummy0: entered allmulticast mode
[ 2146.090998][T31882] dummy0: entered promiscuous mode
[ 2146.121072][T31883] br0: port 1(dummy0) entered blocking state
[ 2146.121268][T31883] br0: port 1(dummy0) entered forwarding state
[ 2148.058365][   T12] dummy0: left allmulticast mode
[ 2148.058919][   T12] dummy0: left promiscuous mode
[ 2148.059189][   T12] br0: port 1(dummy0) entered disabled state