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- Xref: sparky comp.sys.dec:6720 vmsnet.pdp-11:933
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!gatech!concert!seq!marin!jerry
- From: jerry@marin.uucp (Jerry C. Hudgins)
- Newsgroups: comp.sys.dec,vmsnet.pdp-11
- Subject: Re: PDPs and networks?
- Distribution: world
- Message-ID: <jerry.0l4u@marin.uucp>
- References: <1993Jan7.070834.293@netcom.com> <6JAN199323581829@reg.triumf.ca>
- X-NewsSoftware: GRn 1.16f (10.17.92) by Mike Schwartz & Michael B. Smith
- Date: 7 Jan 93 07:40:35 EST
- Organization: Private UUCP Node
- Lines: 32
-
- In article <6JAN199323581829@reg.triumf.ca> noel@reg.triumf.ca (NOEL GIFFIN) writes:
- > In article <1993Jan7.070834.293@netcom.com>, sspatter@netcom.com (Samuel Scott Patterson) writes...
- > >Hello again.
- > >
- > > Does anyone know if there was ever an ethernet card produced for
- > >Unibus? If so, what are it's system requirements? Will it run on an
- > >11/34a with 256K of 18bit words? also, about how much do they run, both
- > >new and used? Also, I would like to get TCPI protocol if this exists in
- > >raw PDP-11/34 octal. :) Or uncompiled equivalent.
- > >
- >
- > The card I believe was called a DEUNA which was the unibus precursor to
- > the infamous DEQNA q-bus DECNET/ETHERNET interface. They connected to
- > thickwire ethernet using an H4000 or a DELNI port. You could probably still
- > find them but I wouldn't guarantee that they would work anymore. At least
- > not with DECNET. I think they tried to phase out all the DEQNA's due to some
- > hardware incompatibility with the evolving spec's to DECNET. I can't be
- > really certain of this as there were problems with RSX11M decnet software
- > and incompatibilities with new VMS releases. I kept a DEQNA going on an RSX
- > system right up until the router went to VMS 5.3 though. The same may
- > have been true for the DEUNA's as well. They were very early network
- > technology and were big, fat and ugly to look at.
-
- RSX has no problem with the DEUNA, DELUA, DEQNA, or DELQA. The issue with
- the DEQNA was specific to VMS. The DELUA and DELQA are faster, however.
-
- --
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- Jerry C. Hudgins Internet: jerry%marin.uucp@seq.uncwil.edu
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