[ 1974.087832][T23211] br0: port 1(dummy0) entered blocking state
[ 1974.088016][T23211] br0: port 1(dummy0) entered disabled state
[ 1974.088175][T23211] dummy0: entered allmulticast mode
[ 1974.089491][T23211] dummy0: entered promiscuous mode
[ 1974.117019][T23212] br0: port 1(dummy0) entered blocking state
[ 1974.117415][T23212] br0: port 1(dummy0) entered forwarding state
[ 1975.968033][   T70] dummy0: left allmulticast mode
[ 1975.969050][   T70] dummy0: left promiscuous mode
[ 1975.969269][   T70] br0: port 1(dummy0) entered disabled state