On 1500/128 Verizon DSL. Windows XP PRO, firewall settings entered correctly, compression on, latest Java, etc... I set the upload slider to unlimmited, but my downloaders are only getting 14KB at most. They are on DSL and higher speed connections. What may I do to give them faster downloads? I feel bad because the file is large and it is pathetic to take a week to get the file. Especially since it then increases the chances of getting "file corrupt".

Thank you.

128 kilobits per second, divided by eight, equals 16 kilobytes per second maximum under ideal line conditions (rare).

So, looks like your uploads bandwidth is pretty much where it should be--14KB/s

All you really can do is upgrade your DSL connection or look at cable, which usually offers better upload bandwidth for the same price, if available.

btw--even though others can only get that file at slower speeds, with partial file sharing they may just get the key piece they need to complete the file, and the new code is great at identifying any corrupt portion of the download so the whole file doesn't need to be redownloaded--just the corrupt chunk. Sweet eh? Philippe and others have really helped with this addition ("THEX") to the code.

btw--welcome: glad to see a real sharer posting!

Thank you for your help. I guess I was foolishly thinking that if only one person was downloading they would get most if not all the bandwidth. And it is only 16 no matter if it is one or four, 16 devided by the number of users. Like now, 4 downloads @ 4KB each...

Cheers,

Duh George

Reread my previous message: I said "upstream"
and "upload speed".

DSL accesses are most often asymetric (so the acronym ADSL). SDSL (symetric) is deployed mostly for professional accesses, but still very rare at a competitive price for home users.

Cable users have also an asymetric speed due to the shared physical link.

In Europe, most [b]up[b]stream speeds for ADSL are between 64kbps and 128kbps, even for accesses up to 2Mbps downstream. There are some newer offers to get 256kbps upstream, but SDSL is still not economically competitive for home users.

Remember that the total bandwidth available on a POTS line is the sum of the POTS or ISDN service (4kHz), plus 2 times the bandwidth in bits per second, of the uptream and downstream width.

So for a 1024/128 kbps ADSL link, the total bandwidth used will be (1024+128)*2+4 = 2308 kHz. There's in fact a required gap of at least 4kHz between the POTS and the DSL channels, which are chosen by subchannels of 4kHz each and multiplexed in parallel.
A 1024/128 ADSL link uses 256 channels of 4 kHz, chosen in a set of channels available in a band of about 3Mhz-wide (which offers 768 channels). The number of usable channels in this band depends on the POTS line physical properties: total lengths, quality, attenuation, diaphony, etc...

The DSL technic allows determining automatically which 4 kHz channels are the best to use to offer the connection. Each channel offers 2kBps of raw binary bandwidth, generally used with a ATM framing protocol (which uses small 64-bytes frames with small control headers, and fixed sizes, called "cells", which allow easy resynchronization and quality control). One cell is fully transported on a single channel, so multiple cells can be sent in parallel on distinct channels.

I understand what you said… it’s just a matter of perspective. I download, they upload to me. They download from me, I upload to them. The only point I am stuck at is: The maximum that any one person or group of people can upload from me is 16KB. Is that correct? [1 upload=16KB, 2 uploads=8KB each, 4 uploads=4KB each]

Cheers,

Duh George

And what are the rest of us? ;)