upload /download speed

[dragon]

we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl


as i dont know how cable works could someone explain why this is the case

[Hom3r]

Originally Posted by dragon

we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl


as i dont know how cable works could someone explain why this is the case

The speed you are downloading at is affected by the sites you visit, not all are boardband enabled. Big sites are more likely to have the bandwidth.

Last year I downloaded the entire Columbia Accident Investigation Boards report in the shuttle all 1.2 Gigs at close to by 1Mb (128KB) bandwidth, and some site I barely hit 20k.

To check your upload/download speeds check the link below (this can be affected if used during peak hours & when the USA is up)

http://www.asdlguide.org.uk/tools/speedtest.asp

hope this helps

[ian@huth]

Originally Posted by dragon

we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl


as i dont know how cable works could someone explain why this is the case

If you are uploading at the maximum speed possible and doing anything else with your connection at the same time then your connection will start to crawl. Whatever else you are using the connection for is adding to the upload requirements of your connection, maybe just "ack" packets. It is better to throttle back your upload instead of trying to max it out.

[dragon]

naa what i ment is if u do somthing that is seriously hitting the upstream i swear it can pretty much kill off the downstream as well.

and that can be anything from ftp upload to game or even the dredded p2p

[Paul M]

Originally Posted by dragon

we on the 600k package but i swear if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl

as i dont know how cable works could someone explain why this is the case

It is due to the way TCP works. As you start to reach the maximum upload speed (say 128k), the download speed will start to rapidly fall to the same speed.

[Hom3r]

Check out

http://www.asdlguide.org.uk/tools/speedtest.asp

this will tell you your upload/download speeds

it will won't be often that you can get you max speeds

P2P is only as good as the connects used

[ian@huth]

Originally Posted by dragon

naa what i ment is if u do somthing that is seriously hitting the upstream i swear it can pretty much kill off the downstream as well.

and that can be anything from ftp upload to game or even the dredded p2p

It will kill off the downstream because the upstream cannot send back "ack" packets very quickly to say that it has received the packet of download. The downstream then tends to slow down to the same sate as the upstream. This is why upstream is a more valuable commodity as there is far less upstream available on a UBR than downstream. That is why I suggest throttling back uploads to leave room for the upstream requirements of whatever you may want to download.

[dragon]

Originally Posted by david.ewles

Check out

http://www.asdlguide.org.uk/tools/speedtest.asp

this will tell you your upload/download speeds

it will won't be often that you can get you max speeds

P2P is only as good as the connects used

Yeah found out by throttleing the upload to around 10k it really did speed the downstream up

btw whats sort of speed is average for ntl 600k conn i think i usally can get around 15k up peaks at 17 sometime and about 67 - 78kb down depending on what im doing.

That is of course when its working!

[Chris W]

600kbps = 75kB/s
128kbps = 16kB/s

[Paul M]

Originally Posted by monkeybreath

600kbps = 75kB/s
128kbps = 16kB/s

True, but packet overheads mean you will never quite get 100%.

[dragon]

Originally Posted by monkeybreath

600kbps = 75kB/s
128kbps = 16kB/s

hmm thanks thought my speed sounded about right

[rdhw]

Originally Posted by dragon

if i start something uploading e.g ftp at the highest possible speed 15k ish it just slows the whole connection to a crawl

Yes - see http://homepage.ntlworld.com/robin.d...ps/downup.html for the explanation.

[Sneck]

I have this problem with DC+ it means that I hardly ever get a download above 15k, DC doesnt have any way of limiting the upload, so what can I do.

[Chris W]

Originally Posted by Sneck

I have this problem with DC+ it means that I hardly ever get a download above 15k, DC doesnt have any way of limiting the upload, so what can I do.

use software where you can restrict the upload....

If you are downloading from somewhere else, then just shutdown DC+ comepletely when you are not using it.

[Sneck]

Is there an app I can use that will limit my upload, or will I have to use a different p2p prog with an inbuilt one?

I dont want to limit it, but I hear it works a lot better at about 97%