[ 1969.226278][T18985] br0: port 1(dummy0) entered blocking state
[ 1969.226697][T18985] br0: port 1(dummy0) entered disabled state
[ 1969.227045][T18985] dummy0: entered allmulticast mode
[ 1969.229698][T18985] dummy0: entered promiscuous mode
[ 1969.310314][T18986] br0: port 1(dummy0) entered blocking state
[ 1969.311690][T18986] br0: port 1(dummy0) entered forwarding state
[ 1973.879243][   T12] dummy0: left allmulticast mode
[ 1973.880348][   T12] dummy0: left promiscuous mode
[ 1973.884702][   T12] br0: port 1(dummy0) entered disabled state