[ 2236.433271][T27242] br0: port 1(dummy0) entered blocking state
[ 2236.433907][T27242] br0: port 1(dummy0) entered disabled state
[ 2236.434076][T27242] dummy0: entered allmulticast mode
[ 2236.434987][T27242] dummy0: entered promiscuous mode
[ 2236.464993][T27243] br0: port 1(dummy0) entered blocking state
[ 2236.465454][T27243] br0: port 1(dummy0) entered forwarding state
[ 2238.919309][   T12] dummy0: left allmulticast mode
[ 2238.920280][   T12] dummy0: left promiscuous mode
[ 2238.920522][   T12] br0: port 1(dummy0) entered disabled state