How do you change RWIN??

Get help and discuss anything related to tweaking your internet connection, as well as the different tools and registry patches on the site. TCP Optimizer settings and Analyzer results should be posted here.
Post Reply
P§iber
Member
Posts: 47
Joined: Fri Mar 09, 2001 12:00 am
Location: Canada, ONT

How do you change RWIN??

Post by P§iber »

I tried the TCP/IP test and got these results:

TCP options string = 020405b40103030201010402

MTU = 1500
MTU is fully optimized for broadband.

MSS = 1460
Maximum useful data in each packet = 1460, which is equal to MSS.

Default Receive Window (RWIN) = 204400
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 51100
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 8176 kbps (1022 KBytes/s) @ 200ms
Your RcvWindow limits you to: 3270.4 kbps (408.8 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 52 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

and if Lobo says these are good results then I am happy :) it says that some other values would work well with my MTU/MSS, so I'm thinking that if I change my current RWIN to one of those suggested in the tweak test, then it might improve.
So how do you change RWIN? :)

Thanks!
Webmaster of The Dark Elite
[http://tde.aalliance.net]
Lobo

Post by Lobo »

Well if you want to play, make sure registry is backedup, have you done so, I can tell you how, also you have cablenuts patch in, in his adjuster is where you would change RWIN, but first leave GolbalmaxWindosize blank, try these RWIN's 373760, 385440, the adjuster is in the 4.0 folder on desktop, right click on it and select shortcut to desktop, reboot too, and any changes you make, click save to registry at bottom and reboot :)
Webie

Post by Webie »

http://www.speedguide.net/Cable_modems/cable_patches.shtml

The above RWIN patch is located on this site. Download it and ur RWIN is auto. set and optimized. It's a winner! Just click on the patch that applies to you and go. :D
Post Reply