[ 1914.859018] br0: port 1(dummy0) entered blocking state
[ 1914.859056] br0: port 1(dummy0) entered disabled state
[ 1914.859095] dummy0: entered allmulticast mode
[ 1914.859143] dummy0: entered promiscuous mode
[ 1914.861854] br0: port 1(dummy0) entered blocking state
[ 1914.861890] br0: port 1(dummy0) entered forwarding state
[ 1915.045170] dummy0: left allmulticast mode
[ 1915.045202] dummy0: left promiscuous mode
[ 1915.045255] br0: port 1(dummy0) entered disabled state