Help Tweaking

[Demah]

I wanted to tweak my computer at work. To see if i can improve my Internet speed. The only thing is I dont know what my speed caps are here at work. Is there a way to find out?


TCP properties for IP =
Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Hotbar 4.0; .NET CLR 1.0.3705)
Note: Read the FAQ if the above is not your IP address.

TCP options string = 0204056401010402

MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.

MSS = 1380
Maximum useful data in each packet = 1380, which equals MSS.
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 64860
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64860
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)

bandwidth * delay product:
Your RcvWindow limits you to: 2594.4 kbps (324.3 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1037.76 kbps (129.72 KBytes/s) @ 500ms

MTU Discovery (RFC1191) = ON

Time to live left = 116 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000




1 connections tested since 03.10.2001.
Analyzer version: 1.01 - updated 05.16.2002.


2002-08-19 15:37:48 EST: 1131 / 2594
Your download speed : 1131183 bps, or 1131 kbps.
A 138 KB/sec transfer rate.
Your upload speed : 2594033 bps, or 2594 kbps.


Windows XP pro

[Lobo]

MTU should be 1500, 1480 if on PPPoE
see sig for how to:)

[mccoffee]

who is ur interet provider ?:D Demah nevermind you are at work:) i think you got a t3 at work there that upload cap is kinda high off that speedtest.

[mccoffee]

click on tcp optimzer in my sig download it and run it 0select cable modem on bottom and optimal settings in the bottom save changes and reboot goto speed test in my sig select the state u are in or the closet one to it countries are in right of that page. take like 3-5 speed test and repost with the resaults.

[Demah]

2002-08-19 17:26:10 EST: 543 / 1692
Your download speed : 543410 bps, or 543 kbps.
A 66.3 KB/sec transfer rate.
Your upload speed : 1692524 bps, or 1692 kbps.

2002-08-19 17:32:00 EST: 989 / 1211
Your download speed : 989976 bps, or 989 kbps.
A 120.8 KB/sec transfer rate.
Your upload speed : 1211387 bps, or 1211 kbps.

2002-08-19 17:33:08 EST: 852 / 1163
Your download speed : 852353 bps, or 852 kbps.
A 104 KB/sec transfer rate.
Your upload speed : 1163467 bps, or 1163 kbps.

2002-08-19 17:34:34 EST: 1026 / 2063
Your download speed : 1026964 bps, or 1026 kbps.
A 125.3 KB/sec transfer rate.
Your upload speed : 2063983 bps, or 2063 kbps.

2002-08-19 17:35:23 EST: 1149 / 1855
Your download speed : 1149379 bps, or 1149 kbps.
A 140.3 KB/sec transfer rate.
Your upload speed : 1855287 bps, or 1855 kbps.

[mccoffee]

one more thing to look at before i go any further goto my computer network properties see if you see anything that said ppoe adapter? E ther way if you got it or dont very important step if so let me know. You are either on t1 or i hope this the right dsl type (sdsl) also what verison of windows are you running thank you.:D one more thing take the anaylzer in my sig one more time pls than and repost resaults.

[Demah]

Windows XP Pro is my OS and i dont see anything called PPP in my network settings!

[Demah]

SpeedGuide.net TCP/IP Analyzer
TCP properties for IP = 216.190.232.170 (host41.bmhc.com)
Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Hotbar 4.0; .NET CLR 1.0.3705)
Note: Read the FAQ if the above is not your IP address.

TCP options string = 020405640103030201010402

MTU = 1420
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput.

MSS = 1380
Maximum useful data in each packet = 1380, which equals MSS.
MSS is not fully optimized for broadband (although it might work well for slower connections). Consider increasing your MTU value.

Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 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:
507840 (MSS x 46 * scale factor of 8)
253920 (MSS x 46 * scale factor of 4)
126960 (MSS x 46 * scale factor of 2)
63480 (MSS x 46)

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 = 51 hops
TTL value is ok.

Timestamps (RFC1323) = OFF

Selective Acknowledgements (RFC2018) = ON

IP type of service field (RFC1349)= 00000000

[Demah]

BTW: I email are network guy asking what type of internet connection we have! :)

[mccoffee]

http://www.student.ipfw.edu/~gottjl01/files/cablenut408.exe download and install and run cable nut software try thease settings then follow that page for the rest I'm assuming that ur capp is 1.5/1.5


DefaultReceiveWindow = 19200
default send window =19200
GlobalMaxTcpWindowSize 51100,64240, 128480 anyone of those3
tcpwindows size 51100,64240,128240,
tcp opts should be one if tcpwindows size is higer then 6553

so for example if you try the 128480 you did to set tcp opts to 1

http://forums.speedguide.net/showthread.php?s=&postid=643301#post643301

have fun don't foget to reboot and apply changes take 3-5 speed test and repost with the resault thank u

[Demah]

I found out that we have 3 T1 to the internet

[Lobo]

Oops:

tcp opts should be one if tcpwindows size is higer then 6553


65535

[mnosteele52]

Try what Bob Carrick posted here (http://www.dslnuts.com/yabbse/index.php?board=8;action=display;threadid=597), it didn't work for that guy but it might be your solution.:)

[mccoffee]

65535 that number i always screw up I should play that as my loto number i'll probably win