[ 1738.275050] br0: port 1(dummy0) entered blocking state
[ 1738.275093] br0: port 1(dummy0) entered disabled state
[ 1738.275131] dummy0: entered allmulticast mode
[ 1738.275188] dummy0: entered promiscuous mode
[ 1738.278054] br0: port 1(dummy0) entered blocking state
[ 1738.278121] br0: port 1(dummy0) entered forwarding state
[ 1738.482042] dummy0: left allmulticast mode
[ 1738.482077] dummy0: left promiscuous mode
[ 1738.482106] br0: port 1(dummy0) entered disabled state