> Ian Greenway said,
>
> > For example: If I look at a webpage and start to download a file from
> > a link, if I move onto another page it would be nicer for the user
> > to have the download relegated to the "background" and interactive
> > connections like the display of the new page given higher priority of
> > download bandwidth.
>
> This isn't possible. When you request a file from a remote server, the
> file is sent by the server. Although we talk about downloading from a
> remote site, it's more like the remote site is uploading to you. The
> data arrives at whatever speed the sending server and intervening
> connections can handle, it's not possible to prioritise.
>
> It's a nice idea, and would be very useful, but TCP/IP doesn't work that
> way. Each download is broken up into packets, the network is simply
> sending you a bunch of packets, it has no idea which ones relate to
> which file, they are reassembled after they have reached you.
Well, it's not impossible to do this - have a look at "GetRight", a
nice Win95 tool, there you can at least set up something like a
"maximum bandwidth used" by the tool. It achieves this apparently by
simply delaying packet acks in a smart way to keep the server from
sending more than the desired maximum bandwidth allows.
Regards,
Holger Rabbach
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