Catching up on old email...
> Kalman filtering would work if there exists in your signal a true
>"tendency or behavior". Unfortunately, the RTT variations in response to
>the variation of number of packets in flight are most of the time
>uncorrelated. For example, increasing the number of packets in flight may
>result in an increase of RTT as well as in a decrease of RTT. This is due,
But there are some important special cases where it would work just
fine. The canonical example, and one of interest to this group, is the
slow bottleneck being used by one user (e.g., a dialup link). If TCP
could detect by its own RTT measurements that increasing the cwind is
just queueing up more and more packets at the bottleneck link, it
could back off its cwind without having to deliberately drop packets
at the bottleneck.
Phil
This archive was generated by hypermail 2b29 : Mon Jan 28 2002 - 09:12:20 EST