[ 1714.205353] br0: port 1(dummy0) entered blocking state
[ 1714.205407] br0: port 1(dummy0) entered disabled state
[ 1714.205439] dummy0: entered allmulticast mode
[ 1714.205485] dummy0: entered promiscuous mode
[ 1714.208842] br0: port 1(dummy0) entered blocking state
[ 1714.208909] br0: port 1(dummy0) entered forwarding state
[ 1714.467163] dummy0: left allmulticast mode
[ 1714.467207] dummy0: left promiscuous mode
[ 1714.467236] br0: port 1(dummy0) entered disabled state