From: "Ian Manners" <ecs-isp@2rosenthals.com>
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To: "eCS ISP Mailing List" <ecs-isp@2rosenthals.com>
Date: Thu, 23 Jan 2020 00:44:52 +0800 (AWST)
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Subject: Re: [eCS-ISP] [eCS ISP] fttc and fiber datarates

Hi Massimo,

As posted at os2world.com..

goto <https://www.speedguide.net/analyzer.php>
I say go here as a means to try to get data on your connection.

What does it say your "RWIN Scaling (RFC1323) =3D 2 bits (scale factor: 
2^2=3D4)" is=3F

and what value does it give for "Unscaled TCP Receive Window"=3F

"Unscaled TCP Receive Window" is important because this
maybe the maximum tcpswinsize/tcprwinsize values you that
you will be able to use if a multiple does not fit in or under
the OS/2 maximum of 246723. Putting a number in without
it being a proper multiple will result in retransmits.

What you are looking for is a MULTIPLE that fits, the size of RWIN is not=
 

overly important for us. Ignore the bandwidth * delay product for now. If=
 

you are interested you can find more information on that by searching for=
  

RFC1323 and having a read.

Feel free to post everything in the window from that webpage
in the "Share Your Results" box.

> i will be forced to move my firewalls from eCS (or AOS in the future)
> to applicances :(

If you want to get the full speed of your line, you may not
have any other choice.

Life would be easier if we had TCP/P Autotune like Linux has
but we do not :)

Cheers