[ 2165.552177][T18833] br0: port 1(dummy0) entered blocking state
[ 2165.552374][T18833] br0: port 1(dummy0) entered disabled state
[ 2165.552531][T18833] dummy0: entered allmulticast mode
[ 2165.553386][T18833] dummy0: entered promiscuous mode
[ 2165.584560][T18834] br0: port 1(dummy0) entered blocking state
[ 2165.584787][T18834] br0: port 1(dummy0) entered forwarding state
[ 2167.619683][   T12] dummy0: left allmulticast mode
[ 2167.620132][   T12] dummy0: left promiscuous mode
[ 2167.620374][   T12] br0: port 1(dummy0) entered disabled state