[ 1996.285369][T23074] br0: port 1(dummy0) entered blocking state
[ 1996.285566][T23074] br0: port 1(dummy0) entered disabled state
[ 1996.285727][T23074] dummy0: entered allmulticast mode
[ 1996.286708][T23074] dummy0: entered promiscuous mode
[ 1996.309365][T23075] br0: port 1(dummy0) entered blocking state
[ 1996.309751][T23075] br0: port 1(dummy0) entered forwarding state
[ 1998.269668][   T12] dummy0: left allmulticast mode
[ 1998.269993][   T12] dummy0: left promiscuous mode
[ 1998.270218][   T12] br0: port 1(dummy0) entered disabled state