From: jbtaylor@polyslo.csc.calpoly.edu (Jeffrey B. Taylor) Subject: Network problems with FTP Date: 20 Apr 1993 01:41:58 GMT
I have been having major problems with networking. Telnet seems to work
correctly from one linux box to another but FTP usually hangs. If the file
I am trying to transfer is small it will usually work but if the file is
large (>20k) it hangs after saying "opening data connection..." If I check on
the machine receiving the transfer, the file is usually about 4k or less.
FTP is not the only problem. When running other programs across the net (such
as xtrek) they will occasionally appear to "die" until I hit a key in a telnet
session to the other machine which causes all of the packets that have been
waiting for the net to come alive again to be suddenly sent all at once.
This is very annoying. I have tried every kernel out there and am currently
running 0.99pl8. I have heard that there are patches for tcpip. Where are
these patches and how can I get them?
BTW, When ftp is successful with small files, the speed is very fast (>100K
bytes per second) It seems like a few packets are sent and then the net
"goes to sleep" for a while, then wakes up and sends some more packets,
"goes to sleep" again, etc. It is a continuous loop. Occasionally it will
not "wake up" when large files are transfered. What's going on here? If
anyone out there has patches for this I would like to get them ASAP.
(the transfer speed with large files is about 30K bytes per second.)
-- -jeff jbtaylor@polyslo.calpoly.edu jbtaylor@flute.calpoly.edu