[ 1961.845386][ T7781] br0: port 1(dummy0) entered blocking state
[ 1961.845617][ T7781] br0: port 1(dummy0) entered disabled state
[ 1961.845827][ T7781] dummy0: entered allmulticast mode
[ 1961.846766][ T7781] dummy0: entered promiscuous mode
[ 1961.869262][ T7782] br0: port 1(dummy0) entered blocking state
[ 1961.869598][ T7782] br0: port 1(dummy0) entered forwarding state
[ 1963.800337][   T12] dummy0: left allmulticast mode
[ 1963.801396][   T12] dummy0: left promiscuous mode
[ 1963.801629][   T12] br0: port 1(dummy0) entered disabled state