[ 1723.155862] br0: port 1(dummy0) entered blocking state
[ 1723.155911] br0: port 1(dummy0) entered disabled state
[ 1723.155947] dummy0: entered allmulticast mode
[ 1723.156004] dummy0: entered promiscuous mode
[ 1723.158895] br0: port 1(dummy0) entered blocking state
[ 1723.158956] br0: port 1(dummy0) entered forwarding state
[ 1723.348448] dummy0: left allmulticast mode
[ 1723.348515] dummy0: left promiscuous mode
[ 1723.348595] br0: port 1(dummy0) entered disabled state