[ 1951.404734][T24251] br0: port 1(dummy0) entered blocking state
[ 1951.404959][T24251] br0: port 1(dummy0) entered disabled state
[ 1951.405136][T24251] dummy0: entered allmulticast mode
[ 1951.406053][T24251] dummy0: entered promiscuous mode
[ 1951.427935][T24252] br0: port 1(dummy0) entered blocking state
[ 1951.428237][T24252] br0: port 1(dummy0) entered forwarding state
[ 1953.285324][   T12] dummy0: left allmulticast mode
[ 1953.285487][   T12] dummy0: left promiscuous mode
[ 1953.285703][   T12] br0: port 1(dummy0) entered disabled state