[ 1757.555858] br0: port 1(dummy0) entered blocking state
[ 1757.555894] br0: port 1(dummy0) entered disabled state
[ 1757.555929] dummy0: entered allmulticast mode
[ 1757.555987] dummy0: entered promiscuous mode
[ 1757.558818] br0: port 1(dummy0) entered blocking state
[ 1757.558850] br0: port 1(dummy0) entered forwarding state
[ 1757.758421] dummy0: left allmulticast mode
[ 1757.758450] dummy0: left promiscuous mode
[ 1757.758479] br0: port 1(dummy0) entered disabled state