[ 1728.396012] br0: port 1(dummy0) entered blocking state
[ 1728.396050] br0: port 1(dummy0) entered disabled state
[ 1728.396096] dummy0: entered allmulticast mode
[ 1728.396147] dummy0: entered promiscuous mode
[ 1728.399520] br0: port 1(dummy0) entered blocking state
[ 1728.399555] br0: port 1(dummy0) entered forwarding state
[ 1728.678850] dummy0: left allmulticast mode
[ 1728.678916] dummy0: left promiscuous mode
[ 1728.679006] br0: port 1(dummy0) entered disabled state