[comp.sys.pyramid] SLIP on a Pyramid

david@uowcsa.cs.uow.oz (David E A Wilson) (03/09/88)

Has anyone managed to configure SLIP to work on a Pyramid (90xe, OSx4.0).
After a bit of hacking into the sun/vax version I have now found that it
uses IFF_ROUTE which has been removed from net/if.h and the bit reused
for IFF_LOOPBACK. Please e-mail me if you have SLIP running on a Pyramid,
explaining what you did to get it going (and what sort of performance
we could expect if it were running ((and how easy it is to interface
the Pyramid supplied higher level packages to it))).

David E.A. Wilson		ACSnet:	david@uowcsa.oz
Dept. of Computing Science	UUCP:	...!munnari!uowcsa.oz!david
Uni. of Wollongong		ARPA:	david%uowcsa.oz@uunet.UU.NET

csg@pyramid.pyramid.com (Carl S. Gutekunst) (03/13/88)

In article <274@uowcsa.cs.uow.oz> david@uowcsa.cs.uow.oz (David E A Wilson) writes:
>Has anyone managed to configure SLIP to work on a Pyramid (90xe, OSx4.0).

Sure. It will be a supported product in OSx 4.4, now in beta test. Harrass
your salescritter if you want to be a beta test site.

I suspect that the problem you had porting the Sun/VAX version to OSx 4.0 is
that OSx 4.0 is 4.3BSD; it sounds like you had the 4.2BSD version of SLIP.

Performance has been pretty good; we had to make some minor modifications to
get dropped packets on the source side to work properly. (Otherwise we occa-
sionally got long TCP timeout delays.) rlogin over a 19.2K SLIP line is not
visibly different from rlogin over Ethernet. Of course, when you get several
people doing cat /etc/termcap at the same time, it gets a bit sluggish. :-)
We've also just started running SLIP on the Telebit TrailBlazer between here
and Ames; interactive really stinks (1 to 4 second echo delays), but that's
because the TrailBlazer is half duplex.  File transfer is better. We'll be
compiling (and posting) specific numbers as the project moves along.

<csg>

sandel@SW.MCC.COM (Charles Sandel) (03/14/88)

I tried to configure in SLIP on our 98x running OSx 4.0
to no avail (we don't have sources, and apparently there
are tricks required to make it work with dual CPU's).
I talked to our Sales Engineer and found out that SLIP will
be distributed by Pyramid in OSx 4.4 which is scheduled for
May release.  If anyone has it running now on dual CPU's, 
I would be interested in hearing how you did it.  Otherwise,
I will have to wait until 4.4 comes our way.
Charles