Bufferbloat isn't when buffers are so full that they cannot accept more traffic; it's when buffers are so big they never get full enough to cause packet drops (

Bufferbloat isn't when buffers are so full that they cannot accept more traffic; it's when buffers are so big they never get full enough to cause packet drops (the slowdown signal the sender needs), but are big enough that packets spend an unreasonable amount of time waiting in line. And a good SQM algorithm shouldn't be shooting down packets from a tool like this unless the configured bandwidth limits are really low, because this tool isn't really generating all that much traffic.