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From: peter@citcom.UUCP (Peter Klosky)
Newsgroups: comp.unix.xenix
Subject: Re: Xenix networking
Message-ID: <65@citcom.UUCP>
Date: Fri, 28-Aug-87 10:13:10 EDT
Article-I.D.: citcom.65
Posted: Fri Aug 28 10:13:10 1987
Date-Received: Sun, 30-Aug-87 04:48:43 EDT
References: <241@astra.necisa.oz>
Organization: Citcom Systems, Inc., Herndon, VA
Lines: 36
Summary: Yes, tcp/ip will run under xenix.

> Are TCP/IP and NFS available under Xenix, specifically SCO?

We are running tcp/ip on our xenix pc's; we had to get ethernet cards
from Micom-Interlan and also a driver to install in the kernel.
We spent about $1200 US per workstation.  Very good performance.
You didn't mention what revision level of SCO you are running; it makes
a difference.  It is not clear the protocol software has been released
under 2.2 xenix; at any rate we are running 2.1.3 here.

Another firm, Excelan, makes a pc-bus ethernet card and software 
product quite similar to Micom-Interlan.

As far as NFS goes, this looks like a problem.  SCO is getting a 
distributed file system going, but they have ignored the nfs standards
in favor of some standard I've never heard of before.  At any rate,
it would appear that it is possible to run this alternate protocol
between xenix machines at least, and yet another vendor offers an
implementation of the xenix-net protocol that will run under a Sun
system, as well as others.  Phone numbers:

Excelan- ethernet cards, tcp/ip s/w: Joe Rohde 408-434-2358
Micom-Interlan- ethernet cards, tcp/ip sw: Jim Miller 301-670-1123
Syntax s/w- SMB server s/w, xenix-net: Dan Vaughn 206-833-2525

p.s. The alternative to running an ethernet is using async lines;
not a good deal.  In our case we have only one async port per pc,
so we ran uucp for file transfer and remote execution.  We could
also run remote login via tip/cu from one side; of course the
users would always argue about which side would run the getty, and
which side would get to log in.  In short, it was a systems admin 
nightmare.  The ethernet allows many logins, and the file transfer speed
is amazingly fast.  If you are putting in a new computer, do not use
rs-232 if you can avoid it.  It's just two slow.
-- 
Peter Klosky, Citcom Systems (materiel de telecommunications)
seismo!vrdxhq!baskin!citcom!peter (703) 689-2800 x 235