[ 2245.744232][T28938] br0: port 1(dummy0) entered blocking state
[ 2245.744544][T28938] br0: port 1(dummy0) entered disabled state
[ 2245.744833][T28938] dummy0: entered allmulticast mode
[ 2245.745934][T28938] dummy0: entered promiscuous mode
[ 2245.778629][T28939] br0: port 1(dummy0) entered blocking state
[ 2245.779179][T28939] br0: port 1(dummy0) entered forwarding state
[ 2248.277254][   T70] dummy0: left allmulticast mode
[ 2248.278466][   T70] dummy0: left promiscuous mode
[ 2248.278801][   T70] br0: port 1(dummy0) entered disabled state