[ 1893.428785] br0: port 1(dummy0) entered blocking state
[ 1893.428835] br0: port 1(dummy0) entered disabled state
[ 1893.428871] dummy0: entered allmulticast mode
[ 1893.428919] dummy0: entered promiscuous mode
[ 1893.432355] br0: port 1(dummy0) entered blocking state
[ 1893.432417] br0: port 1(dummy0) entered forwarding state
[ 1893.690873] dummy0: left allmulticast mode
[ 1893.690938] dummy0: left promiscuous mode
[ 1893.691003] br0: port 1(dummy0) entered disabled state