Here is my results after I made some changes to my registry. Sorry I don't have my previous results showing the 1500MTU size because I just registered to make this post and I have already made the changes to my reg, I'm not about to go back and show you.
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TCP options string = 020405ac010303010101080a000000000000000001010402
MTU = 1492
MTU seems to be optimized for PPPoE... If you are not on a PPPoE connection, consider increasing your MTU to 1500 for optimal throughput.
MSS = 1452
Maximum useful data in each packet = 1440, which is less than MSS because of Timestamps, or other TCP/IP options used.
MSS is optimized for PPPoE. If you are not on a PPPoE connection, consider increasing your MTU value.
Default Receive Window (RWIN) = 128480
RWIN Scaling (RFC1323) = 1 bits
Unscaled Receive Window = 64240
For optimum performance, consider changing RWIN to a multiple of MSS.
Other values for RWIN that might work well with your current MTU/MSS:
511104 (MSS x 44 * scale factor of 8)
255552 (MSS x 44 * scale factor of 4)
127776 (MSS x 44 * scale factor of 2)
63888 (MSS x 44)
bandwidth * delay product:
Your RcvWindow limits you to: 5139.2 kbps (642.4 KBytes/s) @ 200ms
Your RcvWindow limits you to: 2055.68 kbps (256.96 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 114 hops
TTL value is ok.
Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349)= 00000000
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B4, MTU and MSS was all wrong and showed up just like everybody else is getting even though my settings are not set to that. Soooo... I go into my registry and search through the NetTrans and found that there were some Protocals that had NO Description Labals in them. And the Values, etc. were empty. I figure these are safe to delete, so I do (after exporting my Reg of course).
I find also 2 copies of Nwlink.vxd and Netbeui.vxd now I'm not certain EXACTLY which one of these you should Delete if you find two or more. For me, I personally have nothing but 1 NIC in my puter, and have followed the RASPPPoE instructions to the T. So I don't have TCT/IP connected to my NIC. It is only connected to the DialupAdapter as RASPPPoE should be installed. I hope this information helps you in deciding which uh... Invalid entries in your Reg you need to Delete in the NetTrans section.
In any case, for the technically inclined... follow me here. Previously I used a 56k Modem. Ok, so there is gona be stuff entered in the Registry for using modem. Now that I have switched over to HighSpeed, I remove my modem and set up the HighSpeed with RASPPPoE. RasPPPoE is gona enter more registry stuff too... right!!?? Now back to the Duplicate entries in the Reg. I think it's a safe bet to say that the first Duplicate *.vxd reg entries I found are from back when I installed the 56K modem. It should be safe to delete all the previous Duplicates.
For example I have Netrans 0001 to 0017. Ok, my 0010 & 0011 is the first occurance of the nwlink.vxd & netbeui.vxd so I deleted them. They are gone right now! Sorry this is a big post. I'm not good at the direct root and this lengthly example might provide some good results for others. Now, also there were Netrans entries that had nothing in them except for MaxMTU and MSS. They look like they are doing nothing. So I deleted them too. Now you have seen my results above. It is reporting the RIGHT things now that I have fixed my Reg.
The point is if you know what you are doing with your Registry and you have some skill Get in there and RIP out the Junk.
I just made some quick changes and stuff so my tcp/ip tweak results above are not up to par. And I will post another results page soon when I have my Optimum settings in.
