RWIN help

shaolin_monk · Post by **shaolin_monk** » Mon Oct 15, 2001 8:53 pm

Can someone help me change the value of my RWIN? I've downloaded the patches, CableNut, and the vtcp386 fix. I even changed the value manually, but when i take this tcp/ip test the value is always 8760. Did I miss something?

TCP options string = 020405b4

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) = 8760
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 8760
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: 350.4 kbps (43.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 140.16 kbps (17.52 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.

MTU Discovery (RFC1191) = OFF

Time to live left = 54 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = OFF

IP type of service field (RFC1349)= 00000000

Lobo · Post by **Lobo** » Mon Oct 15, 2001 9:07 pm

Speed patch is not installed, read how to on patch page, then REBOOT

shaolin_monk · Post by **shaolin_monk** » Mon Oct 15, 2001 9:32 pm

I installed the sguide_tweak_98_ME patch and rebooted, but i still got the same results. Am I installing the wrong patch?

TCP options string = 020405b4

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) = 8760
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 8760
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: 350.4 kbps (43.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 140.16 kbps (17.52 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.

MTU Discovery (RFC1191) = OFF

Time to live left = 54 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = OFF

IP type of service field (RFC1349)= 00000000

hayc59 · Post by **hayc59** » Mon Oct 15, 2001 11:14 pm

doesn't the speedpacth conflict with
the cable adj.??? just wondering i heard the cancel each other out:2cool:

funky · Post by **funky** » Mon Oct 15, 2001 11:36 pm

Cablenut deletes all tweaks installed previouly. All you have to do to fix this is to install the SG patches again and reboot.