[ 2159.421801][T17949] br0: port 1(dummy0) entered blocking state
[ 2159.422108][T17949] br0: port 1(dummy0) entered disabled state
[ 2159.422394][T17949] dummy0: entered allmulticast mode
[ 2159.423490][T17949] dummy0: entered promiscuous mode
[ 2159.455427][T17950] br0: port 1(dummy0) entered blocking state
[ 2159.455854][T17950] br0: port 1(dummy0) entered forwarding state
[ 2161.841191][   T71] dummy0: left allmulticast mode
[ 2161.841815][   T71] dummy0: left promiscuous mode
[ 2161.842127][   T71] br0: port 1(dummy0) entered disabled state