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lchiu7

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#10520 27-Nov-2006 10:03
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First of all this is not a hack!  For reasons I have not been able to fathom, when I run a ftp server on my machine, the best upload speed I can get is about 40Kbs which is of course, way below the theoretical capacity of a 2Mbs upload plan, international links notwithstanding.  This has been a bit annoying and I have played around with the server configuration, looked at my router etc. - all to no avail. In fact one of the reasons I went with TCL was for their upload speeds - 256K is just inadequate these days when you want to video conferencing etc.

But more puzzling was, whenever I would do speed tests on the line, the reported upload speed is much better than 40Kbs so apparently the line speed is there.

My goal has been to share captures of the AB games (recorded off PrimeTV free to air television) encoded as divx to a friend in the US so he can watch them in a timely manner (so hold off seeing a result on the web).  Each half is about 250MB after encoding - a balance between quality and size.  But no matter what I do, he cannot achieve more than about 40Kbs on his download or my upload. But what was interesting was, when I split the games into two halves and he started downloads on each half simultaneously, he could get up to 35Kbs on each download!  So my line wasn't a constraint - there is some other bottleneck that I haven't been able to locate.

This weekend he tried a piece of software called flashget www.flashget.com

This software claims to speed up downloads by carving up files into smaller pieces and starting separate download sessions for each file.  It seems to work pretty well.  As I watched he downloaded the second half of the AB/Wales games (250MB) as 6 separate downloads, each running at about 30Kbs. So my broadband was supporting almost 180Kbs. The time taken for the whole file - about 35 minutes!  And he told me, the file pieces all arrived okay and flashget joined them up fine.

Just a tip for anybody else in a similar position







Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/h/wellycbd  PM me and mention GZ to get a 15% discount and no AirBnB charges.


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Nety
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  #53787 27-Nov-2006 10:20
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There are lots of applications that give this functionality. I use getright but there are many others.








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lchiu7

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  #53794 27-Nov-2006 11:32
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Well since I rarely have a problem downloading using ftp and  it was news to me that running multiple downloads from my account would overcome the apparent technical limitation on my ftp server environment




Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/h/wellycbd  PM me and mention GZ to get a 15% discount and no AirBnB charges.


JonC
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  #54294 30-Nov-2006 14:40
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I've had a similar experience running server software on my TCL connection. I've used the "Free Download Manager" - this does a similar job to getright, etc. I get around 172KB/s upload internationally from Win XP Pro running IIS. I don't think it's a problem with TCL throttling the bandwidth, but probably more to do with the server software or OS itself. I get about 100KB/s uploading files to an FTP site in Auckland without any use of any special software. Plus, when I experimented with running Windows 2003 Server and IIS 6 FTP server, the upload speeds were great. [edit] - about 180KB/s without the download manager, 230KB/s using FDM, IIRC

What FTP server / OS do you run on your local machine?





cjmchch
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  #54307 30-Nov-2006 16:19
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The simple answer to your question is shaping and routing.

Here is a classic example of how it can make a difference.

I have a Max Max ADSL connection on my line provided by TelstraClear, running through ClearNet. This is exactluy the same connection that I had with Ihug last week. 

My FTP speed to my server in the States, through TelstraClear, is 200+ KB's sec. Now that data reached me having gone through telecom's backbone, however the route it takes to Telecom is determined by Telstra's International path and bandwidth.


Last week my speed with ihug was anywhere between 2 and 16KB's a sec. It also travelled through Telecom, but via AsiaNet, a lagged out high latency connection that would slow a paraplegic snail to a halt. (But ihug say that just ain't so).

Now given that both connections travel through Telecom and on the same line to the same source and destination the only thing that can alter things other than the route it takes is shaping by the ISP. This is where they take a protocol or port range and say anything using that port/range or protocol will have a restriction placed on it. Capped speeds in other words.  A good way to think of it is to look at a funnel, big wide mouth on one end, and a very small hole at the other. The data arrives at the ISP through the big end, and they deliver it to you through the small end.

Most, if not all, ISP's shape traffic in one form or another and in ihug's case it is shaped to the max. Basically if it isn't HTTP or EMAIL then it is shaped!

The same applies from the other end as well. A lot of people think that if there speed is a certain level then everything is coming in at that speed. Not the case. If for example the person you are downloading from has a certain bandwidth then all connections to that server will share the bandwidth allocated. So if you ran an FDP server that had an upload speed of KB's  and had 4 people on it then they are each going to have 4 KB's each approx.

Our ISP's have to purchase International Bandwidth to carry the data so, like us, they have choices, some are cheaper than others, the cheaper it is the more likely it is to have problems via that route. As is most likely the case with ihug and its continued use of asianet. They are getting what they pay for.



JonC
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  #54312 30-Nov-2006 16:35
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I'm not sure how shaping and routing could account for the difference I saw between running a IIS 5 on windows XP (40KB/s) vs IIS 6 on windows 2003 server (180KB/s) without any download managers involved - all over http port 80.  The windows 2003 server was running on the same hardware via a virtual machine, so in theory should be slower.





lchiu7

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  #54323 30-Nov-2006 17:25
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JonC: I've had a similar experience running server software on my TCL connection. I've used the "Free Download Manager" - this does a similar job to getright, etc. I get around 172KB/s upload internationally from Win XP Pro running IIS. I don't think it's a problem with TCL throttling the bandwidth, but probably more to do with the server software or OS itself. I get about 100KB/s uploading files to an FTP site in Auckland without any use of any special software. Plus, when I experimented with running Windows 2003 Server and IIS 6 FTP server, the upload speeds were great. [edit] - about 180KB/s without the download manager, 230KB/s using FDM, IIRC

What FTP server / OS do you run on your local machine?




I am using http://www.serv-u.com/  and XP Pro SP2 on my "server"

I have the ports for ftp mapped in my router to the local machine (well if they weren't no ftp cuold take place)

Can't see where packet shaping is taking place. Wouldn't be in my friend's system since he can download with pretty decent high speed from most sites. Unlikely to be TCL throttling upstream speeds since speedtests I run produce much faster results. Strange...




Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/h/wellycbd  PM me and mention GZ to get a 15% discount and no AirBnB charges.


JonC
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  #54347 30-Nov-2006 21:08
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I'm not completely sure it's the only reason, but I've definitely gotten much quicker FTP and WWW upload speeds when using Windows Server 2003 compared to XP.  I've googled and haven't found anything indicating this is normal, but has worked for me, so I'm happy.

Anyone else with a similar experience?


 
 
 

Move to New Zealand's best fibre broadband service (affiliate link). Note that to use Quic Broadband you must be comfortable with configuring your own router.
barf
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  #54386 1-Dec-2006 15:43

I did some testing and can see a 40kb/s limit (probably imposed) on upstream TCP connections from TCL Cable connections - I tested a couple with SSH and FTP uploads on 2 and 10mbit cable connections to my 3.5mbit ADSL at home and it's not a server software issue - unless you use Windows Tongue out. It's been like this for a while now but as you already know this can be worked-around with a segmenting download manager.






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lchiu7

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  #54504 2-Dec-2006 19:15
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This smacks of misrepresentation of the service to me. If they are saying the upload limit is 2Mbs then why do they apparently cap ftp to about 40Kbs?




Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/h/wellycbd  PM me and mention GZ to get a 15% discount and no AirBnB charges.


ReaperZ
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  #56541 29-Dec-2006 14:13
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ive never had any problems uploading via FTP on my 4/2 connection

constant 230k uploads, also via IRC

lchiu7

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  #56591 30-Dec-2006 09:12
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Then I wonder what you're doing differently or have configured differently since apparently I am not the only person seeing the upload limit per connection




Staying in Wellington. Check out my AirBnB in the Wellington CBD.  https://www.airbnb.co.nz/h/wellycbd  PM me and mention GZ to get a 15% discount and no AirBnB charges.


barf
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  #56602 30-Dec-2006 12:23

I have since discovered one of the cable connections I tested had a faulty router :-\
sorry, my previous post is probably incorrect.


Ichiu7 email me if you would like to arrange a more scientific test - I have 3.5mbit/s downstream ADSL and servers




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