Newsgroups: bit.listserv.banyan-l
Date:         Mon, 14 Dec 1992 09:29:38 EST
From:         Michael=L.=Linnenburger%YWGM%YW@ASD-YT.WPAFB.AF.MIL
Subject:      re:Re: Mac and 3270/SNA

We are using this option now.

Q1:  As long as the MAC is on the seg defined by the option it will
work.  An alternate to putting too many of the options on the system
would be to define the backbone connection to support Appletalk.  This
would allow connections to the backbone to be made by MACs and talk to
the server.

Any user on the system may login at the MAC but the MAC must be attached
to the AppleTalk server.

ANS PS:  You only buy the MAC Mail once.

------------------------------------------------
Capt Michael Linnenburger, Network Manager   (513) 255-7209
           Training Systems System Program Office   DSN 785-7209
           ASC/YT-MIS
           Wright-Patterson AFB OH 45433-6503
Internet:  ML@ASD-YT.WPAFB.AF.MIL
------------------------------------------------


----------------------[Reply - Original Message]----------------------

Sent by:Thomas=Dyckes%IS%CHI%ALOHA.CHI.OHIO-STATE.EDU@VM1.CC.UAKRON.EDU

> Can anybody give me some information about Mac's on VINES?

> Questions:
> - Do we really need the Mac-Option only on one server?
>   Can these users login, even if their group is registered
>   on a server without this option?
> - Is the 3270/SNA option available to Mac users?

One disclaimer before I start. We have not done this yet, but hope to in
the
near future.

Question 1:
        It is possible to allow Macs into the VINES net with the Mac
option on
only one server, but unlikely. StreetTalk doesn't know what the client
type
is. So a user should be able to login in from anywhere on the net. The
kicker
is that the Mac Client option allows the administrator to create a
service on
the server with the Mac Client option that will emulate an AppleTalk
protocol
stack for an AppleTalk server. As far as the Mac user is concerned he is
working with an AppleTalk server that is using StreetTalk Names. Since
this
"AppleTalk service" is handling AppleTalk routing protocols, the Mac
must be
on a LAN segment/inteface with the server that has the Mac Client option
and
the "AppleTalk service". So the response that only one option would be
needed
is true as long as the Macs were attached to server LAN interfaces on
the SAME
server. In a net of any size this is unlikely.
        On the other hand VINES servers without the Mac Client option
will
allow servers with the option to pass packets via protocol tunneling to
other
servers with the option, even though the servers with the option are not
directly attached to each other. The same technique is used to tunnel
Mac
originated print jobs to VINES print services, regardless of service
location.
As I understand it, you will need the Mac Client option on each server
that
will support a LAN segment/interface containing a Mac workstation. The
option
will also support EtherTalk, TokenTalk, and LocalTalk LAN protocols. It
will
allow Dayna LocalTalk cards in the server.

Question 2:
        Banyan supports Mac 3270/SNA emulation via the IrmaLAN 3270/SNA
Gateway for VINES. This product can be sold by your VAR. It comes in
various
sizes according to the number of Concurrent Users (CU) rather than LUs
as
Banyan sells their 3270 options for the server. The Mac client program
is an
additional option. This uses VINES RPCs as opposed to NetBIOS. Irma/DCA
and
Banyan are supposedly working on a server-based product that is
tentatively
scheduled for 1st or 2nd quarter '93.

PS: The is a Mac Mail option that provides a Macintosh user with the
client
program for VINES mail, as well. I don't believe you will need this
option but
once - not per mail service.

-Thomas Dyckes,
 Children's Hospital - Columbus, Ohio

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