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need a new RWIN : )

Posted: Fri Jun 08, 2001 12:25 am
by latin
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Thu Jun 07 21:19:12 2001.



SpeedGuide.net TCP/IP Analyzer
Browser/OS = Mozilla/4.0 (compatible; MSIE 5.01; Windows 98)

TCP options string = 020405b00103030301010402

MTU = 1496
MTU is fully optimized for broadband.

MSS = 1456
Maximum useful data in each packet = 1456, which is equal to MSS.

Default Receive Window (RWIN) = 512512
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 64064
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
256256 (MSS x 44 * scale factor of 4)
128128 (MSS x 44 * scale factor of 2)
64064 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 20500.48 kbps (2562.56 KBytes/s) @ 200ms
Your RcvWindow limits you to: 8200.192 kbps (1025.024 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 19 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

this is how i look now Im running windows 98SE capped @128up /and unlimited down 511MB(memory) I DO GAMING A LOT what RWIN do you guys recomend (cablenut 4.0 running)



thanks

Posted: Fri Jun 08, 2001 12:53 am
by cablenut
Most games use the UDP protocol to allow online play. RWIN'S and such don't matter because these are TCP protocol options we tweak.

Since 99% of the time your big bad RWIN over 64240 isn't being used any one of the below RWIN's would be optimal:

128128 (MSS x 44 * scale factor of 2)
64064 (MSS x 44)

thanks

Posted: Fri Jun 08, 2001 1:26 am
by latin
Cablenut what about an RWIN for downloading i also do a lot of downloading :)

Posted: Fri Jun 08, 2001 2:01 am
by cablenut
We'll can you tell me your average download bandwidth achieved?

Posted: Fri Jun 08, 2001 2:05 am
by latin
i think it was 600kb/sec

Posted: Fri Jun 08, 2001 2:06 am
by cablenut
Sorry to tell you that if you have a 128bit cap on your upload stream your down stream is capped at or around 315~kBytes

Posted: Fri Jun 08, 2001 2:12 am
by cablenut
64064 RWIN

Rwin Limit @ 50ms
1281kB
Rwin Limit @ 100ms
640kB
Rwin Limit @ 150ms
427kB
Rwin Limit @ 200ms
320kB
Rwin Limit @ 250ms
256kB

This looks like a good RWIN for you.

Posted: Fri Jun 08, 2001 2:14 am
by lance-tek
don't know if you caught this or not latin but..........

originally posted be cablenut

Since 99% of the time your big bad RWIN over 64240 isn't being used any one of the below RWIN's would be optimal:

128128 (MSS x 44 * scale factor of 2)
64064 (MSS x 44)

just thought I would point it out to ya :)

thanks cablenut

Posted: Fri Jun 08, 2001 5:14 pm
by latin
thanks cablenut u really helpfull im using 64064 its works the best and somehow it keep my ping numer(gaming) under 40 or sometimes 50 :D IM really happy thsnk you sir!!