[ 1963.214868][T28698] br0: port 1(dummy0) entered blocking state
[ 1963.215112][T28698] br0: port 1(dummy0) entered disabled state
[ 1963.215353][T28698] dummy0: entered allmulticast mode
[ 1963.216340][T28698] dummy0: entered promiscuous mode
[ 1963.243189][T28699] br0: port 1(dummy0) entered blocking state
[ 1963.243386][T28699] br0: port 1(dummy0) entered forwarding state
[ 1965.169668][   T12] dummy0: left allmulticast mode
[ 1965.169847][   T12] dummy0: left promiscuous mode
[ 1965.170070][   T12] br0: port 1(dummy0) entered disabled state