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Topic: best setting for my connection  (Read 3404 times)
Sacrifist
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« on: February 09, 2006, 12:51:40 AM »
what is the best .ccs file for a 1.4 meg down speed and a 700 kB/sec up speed for a wireless dsl connection?
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trogers
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« Reply #1 on: February 09, 2006, 03:17:16 AM »
Try and see if this can help. I assume your MTU is 1492. If it is different, then your speed will not be optimum.
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passthatdutch
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« Reply #2 on: February 09, 2006, 05:07:56 AM »
Can someone also look to http://www.testmy.net/forum/index.php?topic=11736.new#new

Ty
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trogers
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« Reply #3 on: February 09, 2006, 05:25:25 AM »
passthatdutch,

I have messaged you at your original post.
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Sacrifist
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« Reply #4 on: February 09, 2006, 03:07:50 PM »
actually after running the speedguide tcp/ip analyzer it says my mtu is 1450. How do I go about changing that?
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trogers
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« Reply #5 on: February 09, 2006, 07:20:29 PM »
Go to this link and download the TCP Optimizer:

http://www.speedguide.net/downloads.php

Open the TCP Optimizer and do the following:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1500
TTL - 64
TCP Receive Window -blank
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 - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 240
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

Then retest with http://www.speedguide.net/analyzer.php to confirm your MTU has changed.
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Sacrifist
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« Reply #6 on: February 09, 2006, 08:17:40 PM »
hmm, still at 1450. Im not using any router either
« Last Edit: February 09, 2006, 08:32:13 PM by Sacrifist » Logged
 
trogers
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« Reply #7 on: February 10, 2006, 01:27:46 AM »
You can use the feature in TCP Optimizer to locate your largest MTU.

Open TCP Optimizer, set MTU to 1500, click 'Largest MTU', then enter a any website address and click 'Start'. Your comp will send out pings and establish your system's largest MTU value.

If your largest MTU value is 1450 (as limited by you ISP) then we can make a ccs file for you following this value.
« Last Edit: February 10, 2006, 01:34:11 AM by trogers » Logged
 
Sacrifist
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« Reply #8 on: February 10, 2006, 01:40:18 AM »
Pinging [69.25.27.171] with 40 bytes ->bytes=40 time=59ms TTL=241
Pinging [69.25.27.171] with 750 bytes ->bytes=750 time=123ms TTL=241
Pinging [69.25.27.171] with 1125 bytes ->bytes=1125 time=82ms TTL=241
Pinging [69.25.27.171] with 1312 bytes ->bytes=1312 time=109ms TTL=241
Pinging [69.25.27.171] with 1406 bytes ->bytes=1406 time=227ms TTL=241
Pinging [69.25.27.171] with 1453 bytes ->IcmpSendEcho(): 0
Pinging [67.18.179.85] with 40 bytes ->bytes=40 time=48ms TTL=50
Pinging [67.18.179.85] with 750 bytes ->bytes=750 time=233ms TTL=50
Pinging [67.18.179.85] with 1125 bytes ->bytes=1125 time=84ms TTL=50
Pinging [67.18.179.85] with 1312 bytes ->bytes=1312 time=83ms TTL=50
Pinging [67.18.179.85] with 1406 bytes ->bytes=1406 time=89ms TTL=50
Pinging [67.18.179.85] with 1453 bytes ->IcmpSendEcho(): 0

this is what it says so what is my largest MTU?

I also pinged testmy.net and came up with this

Reply from 10.10.49.1: Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.

Packets:sent = 4, Received = 1, Lost = 3 <75% loss>
Approximatel round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
« Last Edit: February 10, 2006, 01:52:56 AM by Sacrifist » Logged
 
trogers
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« Reply #9 on: February 10, 2006, 01:54:18 AM »
Looks like your ISP's router do not respond to the ping and so the test stop without a conclusion.

Looks like we have to go by the old-fashion way.

call out your DOS black screen and after C:\ use this command

ping -f -l (max value) www.testmy.net   

Where -l is minus small L  and max value is your largest anticipated MTU value minus 28.

Say you start with assumed MTU value of 1500, max value is 1500-28 = 1472

If you get a message "Packets need to be fragmented..." Then 1500 is not your largest MTU.

Go on pinging with a max value less 1 until you get a proper result like "Reply from XX.XXX.XX.XXX: bytes= ______   time = _____ ms    TTL= ___

The bytes value shown + 28 = your largest MTU.   
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Sacrifist
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« Reply #10 on: February 10, 2006, 02:21:09 AM »
1422 bytes of data:
reply from 67.18.179.85: bytes=1422 time=85ms TTL=50
reply from 67.18.179.85: bytes=1422 time=98ms TTL=50
reply from 67.18.179.85: bytes=1422 time=83ms TTL=50
reply from 67.18.179.85: bytes=1422 time=104ms TTL=50

Packets sent = 4, Received = 4, Lost = 0
Approximate round trip times in milli-seconds:
Minimum = 83ms, Maximum = 104ms, Average = 92ms

So my MTU is 1450 I take it, now what. btw, thanks for everything you have done to help me out, I appreciate it greatly
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trogers
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« Reply #11 on: February 10, 2006, 02:27:45 AM »
Do your speedtests for download and upload at www.testmy.net with the largest file 2992 KB and post.

Then go to this TCP Analyzer link and post your result:

http://www.speedguide.net/analyzer.php
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jackyandjoe
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« Reply #12 on: February 10, 2006, 09:14:41 AM »
Trogers -  what would be the best cablenut file for me?? my MTU is 1500 and my modem is capped for 8.0Mbps... I am currently using Cable & DSL 30000.ccs one from vanbuners..  Here are my results from the tcp analizer

Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; (none); .NET CLR 1.1.4322)
Notes: Read the Analyzer FAQ if the above is not your IP address.

TCP options string = 020405b40103030301010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
 
Default TCP Receive Window (RWIN) = 513920
RWIN Scaling (RFC1323) = 3 bits (scale factor of 6)
Unscaled TCP Receive Window = 64240

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
 64240 (MSS x 44) 
bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 20556.8 Kbps (2569.6 KBytes/s) @ 200ms
Your TCP Window limits you to: 8222.72 Kbps (1027.84 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 55 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

what else would you need??  thanks for the help...

 
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trogers
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« Reply #13 on: February 10, 2006, 09:18:30 AM »
Hi jackyandjoe,

You an use the ccs file I posted in:

http://www.testmy.net/forum/index.php?topic=11777.0
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jackyandjoe
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« Reply #14 on: February 10, 2006, 09:53:58 AM »
Thanks Trogers, dled and applied already, here are my results now from the tcp analizer, and also the dl test,, please let me know if i should do anything else, as you can see is not even reaching 4 Mbps although it did get better now with that file thank you...

Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; (none); .NET CLR 1.1.4322)
Notes: Read the Analyzer FAQ if the above is not your IP address.

TCP options string = 020405b40103030201010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
 
Default TCP Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled TCP 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 Cool
128480 (MSS x 44 * scale factor of 2)
 64240 (MSS x 44) 
bandwidth * delay product (Note this is not a speed test):

Your TCP Window limits you to: 10278.4 Kbps (1284.8 KBytes/s) @ 200ms
Your TCP Window limits you to: 4111.36 Kbps (513.92 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 55 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)
 __________________________________________

::::::::::.. Download Stats ..::::::::::
Connection is:: 3690 Kbps about 3.7 Mbps (tested with 2992 kB)
Download Speed is:: 450 kB/s
Tested From:: http://testmy.net (server1)
Test Time:: Sat Feb 11 12:53:38 UTC-0400 2006
Bottom Line:: 66X faster than 56K 1MB download in 2.28 sec
Diagnosis: Awesome! 20% + : 69.03 % faster than the average for host (onelinkpr.net)
Validation Link:: http://testmy.net/stats/id-PDKBQX809
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