Settings for Yaksu Modem

[emincey]

Hi,
I have an adsl modem which trademark is Yaksu.
I connect from Turkey.
I have downloaded TCP Optimizer but I dont know how to use it.
I have used "SpeedGuide.net TCP/IP Analyzer" but I could not find which form I should change.
Could you please help me?

[trogers]

What speed did you pay your ISP to give you?

Click on this link and then post the results:

http://www.speedguide.net:8080/

[emincey]

My results (I dont understand the meanings of these results)

« SpeedGuide.net TCP Analyzer Results »
Tested on: 12.18.2006 05:07
IP address: 88.234.xxx.xxx

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: 51
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[trogers]

What speed is your ISP supposed to give you?

[emincey]

256 kbits Download
64 kbits Upload

[trogers]

Your setting is already optimized. Try testing speed at this link using the recommended test server:

http://www.speedtest.net/

[emincey]

Before, Dsl Speed program has been installed. I uninstalled it and analyze againd. Analyzer results are here:
Could you please help me how can I speed my modem?
Thanks

[emincey]

TCP options string = 020405ac0103030001010402
MTU = 1492
MTU is optimized for PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1452
MSS is optimized for PPPoE DSL broadband. If not, consider raising your MTU value.
Default TCP Receive Window (RWIN) = 17424
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 17424

RWIN is a multiple of MSS
Other RWIN values 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 (Note this is not a speed test):

Your TCP Window limits you to: 697 kbps (87 KBytes/s) @ 200ms
Your TCP Window limits you to: 279 kbps (35 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
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 (0)

[trogers]

TCP options string = 020405ac0103030001010402
MTU = 1492
MTU is optimized for PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.
MSS = 1452
MSS is optimized for PPPoE DSL broadband. If not, consider raising your MTU value.
Default TCP Receive Window (RWIN) = 17424
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 17424

RWIN is a multiple of MSS
Other RWIN values 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 (Note this is not a speed test):

Your TCP Window limits you to: 697 kbps (87 KBytes/s) @ 200ms
Your TCP Window limits you to: 279 kbps (35 KBytes/s) @ 500ms
Consider increasing your RWIN value to optimize TCP/IP for broadband.
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 (0)

Your setting is still correct.

RWIN = MSS x 12 = 1452 x 12 = 17424

This will give you a max. latency of 544ms, good enough for surfing from Turkey to the EU and the US.

To test speed accurately, you should test at a server closest to you, and not a server far away.