[ 2137.994209][T21062] br0: port 1(dummy0) entered blocking state
[ 2137.994441][T21062] br0: port 1(dummy0) entered disabled state
[ 2137.994653][T21062] dummy0: entered allmulticast mode
[ 2137.995976][T21062] dummy0: entered promiscuous mode
[ 2138.025503][T21063] br0: port 1(dummy0) entered blocking state
[ 2138.026073][T21063] br0: port 1(dummy0) entered forwarding state
[ 2139.920110][   T70] dummy0: left allmulticast mode
[ 2139.920310][   T70] dummy0: left promiscuous mode
[ 2139.920545][   T70] br0: port 1(dummy0) entered disabled state