Need some help tweaking

Matt615 · Post by **Matt615** » Sat Jul 28, 2001 7:21 pm

I just used the TCP/IP analyzer and this is what I got:

TCP options string = 020405b401010402

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) = ON

Time to live left = 110 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

I have win 98 first edition, any other info needed let me know.

Oh by the way how would I go about backing up the registry before I tweak it??

Thanks,
Matt

NYR 56 · Post by **NYR 56** » Sat Jul 28, 2001 8:02 pm

Change the RWIN to 64240. That is the RWIN that works best with OOL.

NYR 56 · Post by **NYR 56** » Sat Jul 28, 2001 8:08 pm

I guess Ill post here also...

I use DrTCP form DSLReports.com. You can get it here: http://www.dslreports.com/front/drtcp.html

It is very easy to use, and doesnt require you to go into the registry. Also, set the MaxMTU for the NIC to 1500.

NYR 56 · Post by **NYR 56** » Sat Jul 28, 2001 8:20 pm

He is on OOL (cable) not 56k.

Lobo · Post by **Lobo** » Sat Jul 28, 2001 8:24 pm

OK, my bad, I was just going by what he had in profile

Matt615 · Post by **Matt615** » Sat Jul 28, 2001 8:36 pm

Ohhh Thanks LOBO, I forgot I have to change my profile.