Craig Partridge writes:
In message <[email protected]>, Francesco Potorti` writes:
>Correct me if I'm wrong. Using big windows is good if you know your
>path includes a satellite (or big pipe) link. It is not necessarily
>good in general. In particular, if the receiving host is behind a
>slow line (say, a modem at home), the only effect of advertising a big
>window is to build a big queue at the router where the slow line
>connects to, with a consequent series of bad effects on throughout as
>soon as the queue overflows and packets are dropped.
Actually not the case. The effect of advertising a big window is
that you waste buffer space -- TCP will figure out that the link is
low bandwidth and will not try to fill the window.
Agree. In any case, I suspect that if everyone advertised big windows
things would not be better, in general. Is that reasonable? What
should be the "right" window to advertise, given that you don't know
where your packets are goig to go through?
--
Francesco Potorti` (researcher) Voice: +39-50-593 203 (op. 211)
Computer Networks Group Fax: +39-50-904052
CNUCE-CNR, Via Santa Maria 36 Email: [email protected]
56126 Pisa - Italy Web: http://fly.cnuce.cnr.it/
This archive was generated by hypermail 2b29 : Mon Feb 14 2000 - 16:14:38 EST