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From: daemon@ucbvax.UUCP
Newsgroups: fa.info-vax
Subject: DEC Network connections
Message-ID: <133@ucbvax.UUCP>
Date: Thu, 13-Oct-83 23:53:12 EDT
Article-I.D.: ucbvax.133
Posted: Thu Oct 13 23:53:12 1983
Date-Received: Thu, 20-Oct-83 06:13:06 EDT
Sender: daemon@ucbvax.UUCP
Organization: U. C. Berkeley Computer Science
Lines: 60

>From GEOFF5@SRI-CSL  Thu Oct 13 20:52:54 1983
Allan,

Per your net message of 19 Sept there are some additions, as well
as corrections, to your list of available systems for VAX users:

Hardware:  ACC supplied LH-DH/11 for both Distant as well as LOCAL
           network connections.  The LH-DH/11 can be used in a LH
           mode up to 30 feet and a DH mode up to 2000 feet.  For
           distances greater than 2000' ACC supplies Error Control
           Units (known as ECU-II's) which can run via modem
           connections at 9.6 or 56Kbps.  Modem interfaces which
           are supported are Bell Stnd 209, 303, V.35, or Mil Std
           188-114.  As we have currently installed over 300 of
           the LH-DH/11 it is the preferred product to the Special
           Systems offering.

           An additional option, and fairly new, is the IF-11/HDH.
           Currently supported for UNIX based systems only, this
           device is a single Z80 based micro which is plug
           compatible in the DEC UNIBUS.  It performs HDLC at the
           link level (for error correcting) and a 1822 like
           protocol at the network interface level.  The system is
           currently installed, and is fully operational, at Yale
           Univ., and AI&DS out of Palo Alto.  An alternative to the
           LH-DH/11 when distances exceed 2000' the system price
           is currently $8,500 and is quite a cost reduction when
           compared to the LH-DH/11 and ECUs which can exceed $17K
           depending upon the configuration.

Software:  Your knowledge is correct concerning Berkeley Unix which
           latest version is scheduled for release this month and is
           version 4.2.  Also other Unix implementations, such as
           version 6 and 7 are available within the community.  Your
           contacts would be Ed Kane at DCA or Fran Perillo at NIC.

           For VMS system users you have another alternative to the
           Compion system.  There is a group out of Mountain View
           known as the Wollongong Group.  Originally established in
           Australia at the Wollongong Univ., they have implemented
           Unix to run as an apllication program on top of VMS.  They
           have a LH-DH/11 driver, as well as TCP/IP, imbeded in
           their "Kernal".  A number of Naval labs have chosen to
           go this route, due in part to the bad press of the Compion
           software.  Your contact at Wollongong is Dan Ladermann.

           Finally, DEC folks out of your Virginia office are writing
           a VMS driver for the LH-DH/11 under NCP.  I need say no more
           other than to say the decision was based on DEC review of the
           Compion software and would be a natural for TCP/IP implementations.
           A software person there is Debbie Patterson.

Hope this brings you up to date and if you hear something new or different
I would appreciate you forwarding it to me.

Regards,

-->Gary Krall