Question about Window Scaling

[Bob Middaugh]

Hi Baiju,

Try this to get started:

http://proj.sunet.se/E2E/tcptune.html

http://www.wormulon.net/files/pub/FreeBSD_Network_Tuning_-_slides.pdf

If upgrading is an option:
http://caia.swin.edu.au/reports/070717B/CAIA-TR-070717B.pdf


Hope that helps,
Bob

 -------------- Original message ----------------------
From: "Shah, Baiju-p98993" <Baiju.Shah at gdc4s.com>
> Greetings.
> 
> We currently use Espion appliance running FreeBSD 4.9 as a mail interceptor for 
> SPAM.  We have one customer who has their mail gateway hard coded with Window 
> Scaling (WS=9).  Their mail gateway fails to establish SMTP hello connection 
> with WS=9.  However if they set their Window Scaling to 7, it works.  
> 
> Where can I go on the FreeBSD to see its configuration for Window Scale?  How 
> can I modify that configuration?  Please email me with your recommendation to 
> baiju.shah at gdc4s.com. Any and all help are appreciated.  Thank you in advance.
> 
> 
> Baiju Shah
> Network Security Engineer
> General Dynamics-C4S West
> 8201 E. McDowell Road
> MD: H1217 Scottsdale, Arizona  85257
> Desk: 480.441.9877
> Email: baiju.shah at gdc4s.com
> 
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