Messages in this thread | | | Date | Tue, 15 May 2001 00:44:24 -0400 (EDT) | From | God <> | Subject | Re: TCP capture effect :: estimate queue length ? |
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On Mon, 14 May 2001, David S. Miller wrote:
> God writes: > > Speaking of queues on routers/servers, does such a util exist that would > > measure (even a rough estimate), what level of congestion (queueing) is > > happening between point A and B ? > > Not that I know of, but it is funny you mention this because this is > basically the kind of calculation the TCP Vegas congestion avoidance > scheme attempts to make. At it's core, it is trying to estimate the > size of router queues from local machine to remote machine based upon > "congestion events" (packet drop, etc.).
Really? .. hmmm... might just have to go read up on it. I have my own ideas of how to go about doing it (pretty simple I think .. unless I'm missing something other then coding ability .... heh).
My basic reason for wanting such a beast was to convince one internet provider (who shall remain nameless), that from at home *cough* to the gateway, was under extreame congestion. After finaly speaking with a tech who knew the difference between him and a dip switch, he agreed there was a serious problem (queues were exceeding 190/255 tx/rx, logs were showing the link upstream from the gateway was loosing sync multiple times per hour .. etc etc).
The path to that however was long and very frustrating. Trying to explain that although you can ping me fine and I can ping you fine, you still have a serious problem; can be very confusing to some.
Thanks for the pointer :)
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