please tweak my dsl ....

[tibsoul3200]

recently i have been tweaking by myself but i could only go up to like 85-86& of the time using TCP optimizer. can you guys help me tweak it more?

i have [2wire] 2700HG-B Gateway which is the modem/router.
the internet connection what i supposed to get is 3008/512
i have windows xp pro w/ sp2.
i live in the US in Wisconsin,madison.
i use PPPoe.

the ave. speed of what i get is about 2.572 / 433 .

-------------------- ---------------
this is what the TCP Analyze said:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.26.2007 23:17
IP address: 76.201.xxx.xx

TCP options string: 020405ac0103030001010402
MSS: 1452
MTU: 1492
TCP Window: 17424 (multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 17424
Reccomended RWINs: 63888, 127776, 255552, 511104
BDP limit (200ms): 697kbps (87KBytes/s)
BDP limit (500ms): 279kbps (35KBytes/s)
MTU Discovery: ON
TTL: 34
Timestamps: OFF
SACKs: ON
IP ToS: 01000000 (64)
Precedence: 010 (immediate)
Delay: 0 (normal delay)
Throughput: 0 (normal throughput)
Reliability: 0 (normal reliability)
Cost: 0 (normal cost)
Check bit: 0 (correct)
DiffServ: CS2 010000 (16) - class 2 (RFC 2474). Similar forwarding behavior to the ToS Precedence field.

--------------------------------------------

but this is what i have on my TCP optimizer.

TCP Receive Window: 16544
MTU: 1492
MaxConnectionsPerServer: 10
MaxConnectionsPer1_0Server: 20
LocalPriority: 5
HostPriority: 6
DnsPriority: 7
NetbtPriority: 8
ToS: DefaultTosValue: 80
LAN Request Buffer Size: 32768

------------------------------------------------------------


WEB100 Enabled Statistics:
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client to server) . . . . . 440.83Kb/s
running 10s inbound test (server to client) . . . . . . 2.58Mb/s

------ Client System Details ------
OS data: Name = Windows XP, Architecture = x86, Version = 5.1
Java data: Vendor = Sun Microsystems Inc., Version = 1.5.0

------ Web100 Detailed Analysis ------
Cable modem/DSL/T1 link found.
Link set to Full Duplex mode
No network congestion discovered.
Good network cable(s) found
Normal duplex operation found.

Web100 reports the Round trip time = 55.43 msec; the Packet size = 1452 Bytes; and
No packet loss - but packets arrived out-of-order 0.09% of the time
This connection is receiver limited 97.88% of the time.
This connection is network limited 2.09% of the time.

Web100 reports TCP negotiated the optional Performance Settings to:
RFC 2018 Selective Acknowledgment: ON
RFC 896 Nagle Algorithm: ON
RFC 3168 Explicit Congestion Notification: OFF
RFC 1323 Time Stamping: OFF
RFC 1323 Window Scaling: OFF
Information: Network Middlebox is modifying MSS variable
Server IP addresses are preserved End-to-End
Client IP addresses are preserved End-to-End

---------------------------------------------------------


http://i55.photobucket.com/albums/g152/tibsoul/Untitled-1-1.jpg

p/s my computer is free of any spyware/virus/adware...etc.:rockin:


thank you..........:)

[trogers]

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1492
TTL - 64
TCP Receive Window - 63888
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - uncheck
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

[tibsoul3200]

http://www.speedtest.net/result/104876342.png

this is what i got.

the download speed is the same as b4.
the upload speed is the same as b4.

but how can i increase my upload cause the upload speed is usually 433.
it has never been higher than 440+

p/s the distance that shows on that thing is lie.
somehow my IP shows that i am in the center US.

[trogers]

Your subscribed speeds are 3008/512 kbps and you have tested to 2572 / 433 kbps. I would say your settings are already optimized. We cannot achieve 100% because each packet sent or received contains overheads. We normally hope to achieve 90% of our subscribed speed.

I have increased your TCP Window (RWIN) from 17424 to 63888 because the nitro test reported "This connection is receiver limited 97.88% of the time".

You can try setting TCP Window to 31944 and see if it can improve your tested speed but then max. latency would only be 85ms. This may limit your speed should you be surfing to websites further away.

[tibsoul3200]

the more i incease the RWIN settings, the more im losing packet, and the more im losing the packet, the less my internet connection is.

i have tried your settings, which you told me to incease my RWIN but im losing the connection of the speed at the same time.

RWIN is supposed to incease the speed limit. [ i got that ]

Q: why do inceaseing the RWIN affect packets? :cry:

[trogers]

the more i incease the RWIN settings, the more im losing packet, and the more im losing the packet, the less my internet connection is.

i have tried your settings, which you told me to incease my RWIN but im losing the connection of the speed at the same time.

RWIN is supposed to incease the speed limit. [ i got that ]

Q: why do inceaseing the RWIN affect packets? :cry:

There are a few aspects to tweaking:

- correct MTU-RWIN value using BDP and even multiples of MSS
- comp free from spyware and viruses
- good signal quality.

The first aspect is worked from your subscribed speed and your TCP Analyzer report.

The third aspect is from tracerts and the network tests (eg. nitro test).

When corrections done for these earlier 2 aspects do not improve speeds, especially a stubborn low upload speed, likely cause would be the presence of spyware or virus.

If your line has poor signal quality or considerable packet losses, increasing RWIN will cause round trip time to increase. As to why this is so, I do not know. But it is an observation from the many network tests of members who had posted in this forum.

And because round trip time increases, the network test would recommend further increase in RWIN, creating a vicious cycle.

What we do know is that large RWIN settings with packet losses slow download speed due to the need for high number of packet retransmissions to fill the big TCP buffer that the large RWIN creates.

This effect is illustrated at this link: http://www.askmarvin.ca/finetuning.html

So the best way to solve the problem is to find the cause for your packet losses and get it corrected. If it is in the first 3 hops of your tracert, your probably can correct it. If it is in your ISP's network, you can report it. If it is further along your signal path, you will have to avoid going to that site for a period of time until the problem is raised by someone else and be corrected.

[tibsoul3200]

Q :how do i check what's causing the packet-loss?

my first hops are : they mostly ranging from 1ms-11ms

1. 1 ms 1 ms <1 ms 76.201.xxx.xxx
2. 10 ms 11 ms 11 ms 76.201.xxx.xxx
3. 11 ms 11 ms 11 ms dist2-vlan60.mdsnwi.ameritech.net

Q: how do i know if it's the ISP network or if it;s the signal path that's causing it?


Q: also while suring that site that you reply back, i found that by setting up Proxy Server it can boost up the connection speed too, How can i find my ISP proxy Server?

Thank you for replying...................:thumb:

[trogers]

Q :how do i check what's causing the packet-loss?

my first hops are : they mostly ranging from 1ms-11ms

1. 1 ms 1 ms <1 ms 76.201.xxx.xxx
2. 10 ms 11 ms 11 ms 76.201.xxx.xxx
3. 11 ms 11 ms 11 ms dist2-vlan60.mdsnwi.ameritech.net

Q: how do i know if it's the ISP network or if it;s the signal path that's causing it?


Q: also while suring that site that you reply back, i found that by setting up Proxy Server it can boost up the connection speed too, How can i find my ISP proxy Server?

Thank you for replying...................:thumb:

You can use PingPlotter to do a traceroute to your target site to check on the locations of packet losses. Here is the link to a freeware version:

http://www.pingplotter.com/freeware.html

Some ISPs may already use a transparent proxy (or web) server. This is evident when TCP Anaylzer reports 2 IP addresses when testing your connection.

Marvin, at his site, explains how proxy server can speed up browsing and some downloads and also gives guidance on how to find and use the proxy server of your ISP:

http://www.askmarvin.ca/proxy.html