[ 1836.462633] br0: port 1(dummy0) entered blocking state
[ 1836.462678] br0: port 1(dummy0) entered disabled state
[ 1836.462708] dummy0: entered allmulticast mode
[ 1836.462763] dummy0: entered promiscuous mode
[ 1836.466227] br0: port 1(dummy0) entered blocking state
[ 1836.466267] br0: port 1(dummy0) entered forwarding state
[ 1836.711141] dummy0: left allmulticast mode
[ 1836.711212] dummy0: left promiscuous mode
[ 1836.711303] br0: port 1(dummy0) entered disabled state