Hi SMs.
The correct answer was: use a Cat5 cable (see the original question below)
I was using the old crossed cable that I prepared myself.
Anyway, even if the link is running fine now, it seems that the same ftp session that at 10Mbit/s had a throughput of 290Kbit/s now runs at 500Kbit/s. I expected at least 2 or 3MB/s.
One of you, Tomasz M. Wolniewicz, says that he has a similar configuration running at 5MB/s.
I will post another question to the list as soon as I have a precise benchmark.
Thanks to:
Jon Bidinger <jonb@visi.com>
Tim Carlson <tim@santafe.edu>
Birger A. Wathne <birger@Vest.Sdata.No>
Sean McInerney <seanm@sybase.com>
Benjamin Cline <benji@hnt.com>
Russ Poffenberger <poffen@San-Jose.ate.slb.com>
Mark - markt.thomas@hsc.hac.com
Russell David <david.russell@lmco.com>
Vipin Gupta <Vipin.Gupta@blr.sni.de>
Tomasz Wolniewicz <twoln@hpc.uni.torun.pl>
Aggelos P. Varvitsiotis <avarvit@cc.ece.ntua.gr>
======
The question:
Hi All.
Does anybody have experience with back-to-back TP network using 100Mbit/s interfaces?
It seems to me that this kind of connection can work only at 10Mbit/s.
I have here 2 machines that till yesterday were connected back-to-back through their 10Mbit/s Eth. interface. Never had problems.
Yesterday I mounted a FastEthernet SBus card on each of them.
Well, I can telnet from one to each other, but the link is really unstable. When I run a command like "ls -lR" during a telnet session, the output scrolls, then it hangs for several seconds, then it continues, etc.
I tried to run "ping -s <dest> 1400 100", and I had only 68% packets received !
Then I tryed to replace the TP crossed-cable with 2 normal TP cables + hub 10Mbit/s: everything works fine, but of course at 10Mbit/s.
Any suggestion?
Luca Pizzinato
pizzinato@eumetsat.de
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