From: Justin Mason (jm at domain netnoteinc.com)
Date: Mon 11 Oct 1999 - 12:24:18 IST
Christian J van den Bosch said:
> Using esatclear.net surf nolimits, anybody have any idea why I'm only
> getting approx 1k/sec downloading the redhat 6.1 cd image from
> ftp.esat.net? I was getting 4k/sec at the start of the transfer but in
> 12 hours I've only got 36 megs... at this rate the weekend will be over
> and it'll be costing me money again before this download is done...
I think it sounds like one of those TCP rate fallback thingies. I don't
know enough about this kind of TCP low-level implementation detail, but I
think most TCP impls have a habit of reducing the transmission rate in
response to packet loss... and I have observed it (esp. over modems)
reducing the rate to a pitiful crawl. With any luck a TCP/IP guru on this
list, of which there are a few, will step in and provide the details!
Generally a re-connection fixes it -- Go!Zilla on Windoze or ncftp's
"reget" command on UNIX will sort it. (bit late now though ;)
If there's a better workaround to tune this for dialup links, I for one
would love to hear it. It's no fun having to babysit a big FTP.
--j.
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