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Gradually declining transfer speeds

Posted: Thu Apr 06, 2006 9:19 am
by seodevhead
Hey guys, I have a dedicated server that I serve a lot of online video and downloads with. I notice that when I download large files from my server, they start off fast (say 450kb/sec) but gradually but rather quickly, fall to 150kb/sec and hold.

I was told before to check and make sure my server was not running at half-duplex, and I contacted my managed host and they double checked and said it certainly was not. I am on a 8mbs Comcast Cable connection, so it could be on my end, but it seems odd that this is happening with my server and I get fast downloads from other servers all the time. My server can handle A LOT more traffic than is currently getting as well.

Is this a result of my server or does this sound like my ISP? Thanks for your help and advice.

Posted: Thu Apr 06, 2006 9:25 am
by feyd
From my experience, it has more to do with the burst vs sustained rate allowed by the many lines of connections.

Posted: Thu Apr 06, 2006 9:28 am
by seodevhead
So with that you mean everything in between me and the server? (hence not my server causing it?)

Does it matter which state you server is located in? For instance, most of my visitors are from the south, but my server is hosted in chicago. That wouldn't make that big of a difference in download speed for everyone in the south would it?? Thanks!

Posted: Thu Apr 06, 2006 10:07 am
by feyd
distance is always a factor in communications. The transfer would likely be faster if the server was in Atlanta, but Chicago is the major hub of all internet traffic in the US, so it's not too bad. It really depends on how they get to the server (what routes the packets take, they don't all take the same route either)

Posted: Thu Apr 06, 2006 10:51 am
by timvw
Overhere the university has a network policy that goes like: The first 10mb of traffic recieve all the available bandwith.. Once this limit is exceeded andwith is limited to 400Kbps.. After 50 mb that becomes 200Kbps...