Anyone knowing what's going on?

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Frankc

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I already had ADSL for almost 2 years and downloads was always around 30 to 90 k. Was never over 90 k. (512k line)

This morning I downloaded 21mb file and got a speed of 430 k.

Seems that Telkom have a trottle somewhere and that it was disabled for a short period, perhaps software upgrade or something.

Anybody else got the same experience?

(I am afrikaans and deaf so excuse me the english grammar)
 
Hi Frankc and welcome to the MyAdsl forums, we all hope you enjoy your stay! :)

Now, with the sudden speed increase that u had, could be anything, but your theory is very possible.

All I can say is i hope you enjoyed it while it lasted!

Cheers!
 
ok, well lets start with the basics!

How was the file downloaded? http? ftp? p2p? etc etc etc...


how many computer on your network?

how are you connected to the net?
pc with usb modem?
pc with router?
pc on network with linux firewall and proxy .... etc etc etc
 
It's Telkom that trottle the throughtput that's I am sure off.

Use ADSL for almost 2 years.
Work on internet past 3 years. (owned 200+- websites)
Same Computer
Marconi USB modem
512 k Telkom ADSL account

With around 200 websites you will understand that I upload/download thousands of files every month. Average speed to my servers 50k

This particular file was on one of my servers at Hetzner datacenter in Jhb.

21.3 MB (22,363,727 bytes)
Downloaded 21 December 2005, 10:10:44

Above file was downloaded within less than one minute with throughput of average 430k. (With SecureFX)

(While writing this I tested again. Got over 550K.)

I uploaded it again to other location with just under 500k upload speed to enable me to test download with other methods.

http://www.sa-hosting.net/onlinec_chat.zip (It's actually a text file but I renamed it to zip to force download)

With normal download as well as with win commander I only get 57k download speed.

So it seems that it's the SecureFX program or SSH connection that bypass trottling.

FACT of the matter is that, if a speed of 500+ k can be achieved then there must be a trottle to limit speed via standard protocols.
 
hi Frankc,

Welcome from me 2!!!

Pretty interesting facts.
I'm sure that in between the chaos in Telkom we have a few very clever techies and admins who actually know their job.

:)
 
u tried to use this sercurefx to download any other files from the same place?
 
A guess.

Judging from the file name and what you say it is some kind of chat log. This will be HIGHLY compressible, and whatever you were using to download implemented that compression, resulting in the apparent high speed. See if you can get that sort of speed on a big ( real ) zip or rar file.

Edit. PS - for example if the one client sends a HTTP header like:
Accept-Encoding: compress, gzip
the server could compress the data. Maybe the normal client did not send an accept compress header.
 
Last edited:
I just now test it.

Connect to other server on separate network via sftp and got 500+ download speed.

Then download 4 different real zip files (program install files) from both servers and also get 500+ k.

My teory is that there might be a trottle on certain data protocols and since sftp is encrypted the software or whatever cannot determine what it is and therefore don't trottle it.

The server don't have gzip enabled.

I am anyway now busy to switch over from normal ftp to sftp.

(By the way. I am willing to give anyone that email me at [email protected] a temporally username and password to test it. I am anyway going to permanently shutdown this particular server tomorrow - Was busy transfering all the websites when I noticed the speed difference)
 
Silent bob you should really consider Iburst mate! I think telkom have forgotten about you!
 
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