[ 1849.208575] br0: port 1(dummy0) entered blocking state
[ 1849.208610] br0: port 1(dummy0) entered disabled state
[ 1849.208636] dummy0: entered allmulticast mode
[ 1849.208677] dummy0: entered promiscuous mode
[ 1849.212895] br0: port 1(dummy0) entered blocking state
[ 1849.212948] br0: port 1(dummy0) entered forwarding state
[ 1849.507311] dummy0: left allmulticast mode
[ 1849.507344] dummy0: left promiscuous mode
[ 1849.507365] br0: port 1(dummy0) entered disabled state