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Thread Semi OT: Testing Network Connection
Tue, Sep 18 2007 3:20 AMPermanent Link

"Adam H."
Hi Guys,

Does anyone know of some good software that will allow me to test the
network connection between two computers (ie, how many dropouts / packet
resends / speed / etc).

Years ago the network cards I used to use with Lantastic had some DOS
software that allowed you to see all this information by booting off a
utility CD that came with the NIC.

Modern cards don't seem to have this software, and I was wondering if anyone
could recommend any software to help diagnose network issues?

Thanks

Adam.

Wed, Oct 24 2007 6:47 AMPermanent Link

Markku Nevalainen
Adam H. wrote:
>
> Years ago the network cards I used to use with Lantastic had some DOS
> software

World and test applications have changed from those simple daysSmileNow
the problem is more that these new diagnostic tools are quite
complicated. And filled with TCP/IP, several protocols etc. jargon. You
need to be a network specialist to even understand what the output of
these apps try to say.

> Modern cards don't seem to have this software, and I was wondering if anyone
> could recommend any software to help diagnose network issues?

I have used this free Packetyzer tool for years
http://www.networkchemistry.com/products/packetyzer.php

It shows some complex results that I am not able analyze or utilize. But
some of the resulting reports are also quite simple and understandable.

> Does anyone know of some good software that will allow me to test the
> network connection between two computers (ie, how many dropouts / packet
> resends / speed / etc).

I could not see, or myself produce any re-sent IP packages. But probably
some of those test results will show that dropped package count also.

Some years back I used Packetyzer for instance to check the amount of
data DBISAM needs to transfer over (slow) lines when used in C/S mode.

I noticed that the amount of transferred data is quite significant also
in simple Query in C/S mode.
But at least not all of this surprising amount is related to DBISAM's
C/S design or such. The IP framing just is quite heavy. Even small
amounts of data need some 10 kByte IP framing and protocol's internal
communicationg around it.

Markku Nevalainen
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