A Question....Hmmmm

[gobama]

Hello. I read the tweaks on speedguide here and decided to try and re-enter them manually. Well, I went back to using Cablenut and I've got a question. Why does Cablenut add all the #000n folders under NetTrans Folder in the registry when I only have 1 device that is bound to TCP/IP? That would be my Ethernet card of course! Also, it added MaxMtu=1500 and MaxMSS=1460 to each of those folders. My 0001 folder is the folder where it shows the "DriverDesc" value pointing to TCP/IP. Is this something that could slow my transfer rates down? I just took the analyzer test, and here are my results. Thanks for any help; it is ALWAYS very much appreciated :)


SpeedGuide.net TCP/IP Analyzer


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) = 256960
RWIN Scaling (RFC1323) = 2 bits
Unscaled Receive Window = 64240
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)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)

bandwidth * delay product:
Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 53 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000


129309 connections tested since 03.10.2001.
Analyzer version: Beta 0.94


P.S.- I had my RWIN value up to 385440, but it seems like I was experiencing some packet loss. Is there another value I can try between 256960 and 385440 that might work better? Also, the Globalwindowssize HAS to be the same as the DefaultRcvWindow, right? Again, thanks for any help or advice. I like to tweak my system :)

[Buggyman]

You'll have to ask Cablenut himself.. do that here-->CableNut (http://www.networkranch.com/cgi-bin/ultimatebb.cgi?&category=1)
You hit the nail on the head about Rwins. Packet loss and latency are the key.
Too high or even too low can cause that.
Just remember that the Rwins need to be multiple of your MSS.
The best one depends on YOU!

[cablenut]

What version is this? I've not done the 000n folders in a long. At any rate it will not slow down your system they are put there to ensure 100% working order with a variety of user systems.

[gobama]

The version of Cablenut is 4.02. I installed the 4.0 and updated it with the 4.2 and installed the vtcpfix for windows 98. I am running windows 98 SE, 450 PII CPU, 160 megs of Sdram. Here are my results after making some changes.


SpeedGuide.net TCP/IP Analyzer

TCP options string = 020405b40103030301010402

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) = 373760
RWIN Scaling (RFC1323) = 3 bits
Unscaled Receive Window = 46720
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: 14950.4 kbps (1868.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 5980.16 kbps (747.52 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 53 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000


129512 connections tested since 03.10.2001.
Analyzer version: Beta 0.94


This look ok, or do I need to tweak some more? :)

Also, under my Network Neighborhood settings, I have only 3 things installed. Client for Microsoft Networks, Linksys NC100 Ethernet Card and TCP/IP. No Netbui or Ipx. My ISP (Charter) told me those were not needed. I hope they're right :)

[Lobo]

They are corect :)

[Storm90]

You can remove them. I do won't hurt a thing. Just leave your TCP/Ip folder there. It won't hurt if you leave them either. But they really don't do anything. So if you want to remove them do so. I do with no problems at all. ;)