On Sat, 2 Jun 2001, Alan Havlik wrote:
> Unfortunately I noticed that continuous upload would brake down my
> download speed in quite significant way. If e.g. I'm loggen in a napster
> or similar server and my upload bandwidth is fully used up, I'm getting
> download rates sometimes under the modem speed :-(((
This isn't all that unusual. When you download a file, for every one or two
packets with data Miami sends a TCP ACK packet so the other side knows you
received the data and it can send more. When the ACKs are delayed because
you're uploading, downloading will go slower as well because it takes
longer for the other side to know it can send data again.
You could try setting the MSS or MTU to a lower value, that way the ACKs
don't have to wait so long, but it does lower your performance somewhat.
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