[ 1859.580420] br0: port 1(dummy0) entered blocking state
[ 1859.580472] br0: port 1(dummy0) entered disabled state
[ 1859.580502] dummy0: entered allmulticast mode
[ 1859.580560] dummy0: entered promiscuous mode
[ 1859.584259] br0: port 1(dummy0) entered blocking state
[ 1859.584297] br0: port 1(dummy0) entered forwarding state
[ 1859.843230] dummy0: left allmulticast mode
[ 1859.843269] dummy0: left promiscuous mode
[ 1859.843306] br0: port 1(dummy0) entered disabled state