[ 1860.598614] br0: port 1(dummy0) entered blocking state
[ 1860.598655] br0: port 1(dummy0) entered disabled state
[ 1860.598690] dummy0: entered allmulticast mode
[ 1860.598747] dummy0: entered promiscuous mode
[ 1860.602132] br0: port 1(dummy0) entered blocking state
[ 1860.602163] br0: port 1(dummy0) entered forwarding state
[ 1860.834506] dummy0: left allmulticast mode
[ 1860.834544] dummy0: left promiscuous mode
[ 1860.834575] br0: port 1(dummy0) entered disabled state