Newsgroups: bit.listserv.big-lan
Date:         Fri, 11 Sep 1992 17:39:03 EDT
From:         BIG-REQ@SUVM.BITNET
Subject:      BIG-LAN Digest, Volume 4, Number 59, Friday, September 11, 1992

BIG-LAN DIGEST          Friday, 11 September 1992      Volume 4 : Issue 59

Today's Topics:

                            Free PC NFS client
   Lectures on Computer Technologies and Networking in Baltic Countries
                          Secure Access to UNIX
                  Campus-wide fiber optic ATM backbones
                               info request
                      Rural Telecommunications Plan

Moderated by John Wobus, Syracuse University

Relevant addresses:
                                  Internet                BITNET
Submissions:              big-lan@suvm.acs.syr.edu     BIG-LAN@SUVM
Subscriptions:    big-lan-request@suvm.acs.syr.edu     BIG-REQ@SUVM
LISTSERV/Archives:       listserv@suvm.acs.syr.edu    LISTSERV@SUVM
Moderator:                jmwobus@syr.edu              JMWOBUS@SYREDU
Anonymous ftp archives:           syr.edu

Note: BIG-LAN is redistributed through many mailing lists at other sites
run by other individuals.  If you subscribe(d) through such a
"redistribution" list, you will need to remember its owner.

syr.edu also has a copy of the BIG-LAN "FAQ" memo (answers to frequently
asked questions) under the path information/big-lan/big-lan.faq

----------------------------------------------------------------------

Date: Wed, 9 Sep 92 09:42 MET
From: Koos van den Hout <VANDENHOUT@ruumtc.tcu.ruu.nl>
Subject:      Free PC NFS client


Hi everybody,

I am expirimenting a little with NFS and I am looking for a PC NFS client that
is *Freeware* (or close). Since it's just for testing the possibilities and
trying some things and not for a full-fledged system that will be used for a
longer time I don't want to purchase the Sun client.

I've tried sending several requests to Archie servers but the only thing that
shows up are fixes for the Sun client or programs that cooperate with that
client.

BTW, I have ftp access so getting it isn't the hard part, just getting the
correct name is ;-)

              Tnx. in advance,           Grtx. KH

-------------------------------------------------------

Date: Wed, 9 Sep 1992 17:56:09 +0200
From: Algirdas.Pakstas@idt.unit.no
Subject: Lectures on Computer Technologies and Networking in Baltic Countries

Dear Colleagues,

Let us we will introduce ourselvs. We are computer scientists from
Vilnius, Lithuania (temporary staying in Trondheim, Norway). We both
are working in the Institute of Mathematics and Informatics of the
Lithuanian Academy of Sciences.  Main research topics are software
engineening for distributed computer systems, methods and tools for
development of distributed software configurations, networking, formal
methods, simulation of message passing systems.

We are going to visit USA in September-October, 1992 for conference.
We also are interested to visit american Universities and give some
lectures about our research results and more general lectures about
Computer Technologies and Networking in Baltic Countries.

Please, let us know if your organizations are interested in such
subjects and can be partial sponsors for our visit at least inside USA
(unfortunately, our host institute in Norway can't to provide full
funding). Our CVs and abstracts of possible lectures are available on
request.

Please, reply ASAP by e-mail or by FAX. Our address:

	Dr.Algirdas Pakstas / Sonata Pakstiene
	Division of Computer Systems and Telematics (IDT)
	The Norwegian Institute of Technology (NTH)
	The University of Trondheim (UNIT)
	N-7034 TRONDHEIM
	Norway

	PHONE: +47-7-594460 (secr.) or +47-7-594485 (direct in office);
	FAX  : +47-7-594466;
	TELEX: 55637 NTHAD.N
	Email: Algirdas.Pakstas@idt.unit.no

Thanks in advance for your cooperation.

Sincerely,

Algirdas Pakstas, Dr., Senior Scientific Staff
Sonata Pakstiene, Junior Scientific Staff

-------------------------------------------------------

Date: Thu, 10 Sep 92 15:48:41 +0200
From: fabrice@horus.u-strasbg.fr (Fabrice Rousselot)
Subject:      Secure Access to UNIX


			Hello,

		I am doing my training period in the Louis PASTEUR University
	of Strasbourg (France).

		The universitary network is named OSIRIS. It's a metropolitan
	network binding local networks (Ethernet and Localtalk), laboratories
	and universitary instituts. Communication protocols such as TCP/IP,
	DECnet or APPLETalk are used by OSIRIS.

		The subject of my training period is the realization of
	"secured access to UNIX". I will soon work on a PC computer with UNIX
	operating system, it will be equiped with some cards (modem, ISDN).
	The subject means that I must allow external persons to connect with
	OSIRIS using the PC as a filter. They will be able to connect using
	the Integrated Services Digital Network, X25 or the Commuted Telephonic
	Network. After this short explanation, I'm seeking all pieces of
	information, references to books which could help me.

				Thanks,
				Fab.

-------------------------------------------------------

Date:         Fri, 11 Sep 92 14:22:06 EDT
From:         "R. Kogut" <RKOGUT@BROWNVM>
Subject:      Campus-wide fiber optic ATM backbones

We are hoping to replace our campus-wide broadband backbone (CATV technology)
by a fiber-optic ATM backbone when the technology is ripe and the prices
start coming down. Because of our desire to piggy-back on fiber that other
organizations on campus need to lay in the very near future, we'd be interested
in talking to anyone who has done any analysis or planning for a similar
system. We're interested in all aspects, but especially the wiring topology.
My Internet address is RKOGUT@BROWNVM.BROWN.EDU.

-------------------------------------------------------

Date: Fri, 11 Sep 92 14:46:34 CDT
From: richard@technology.com (Richard Murphy)
Subject:      info request

I need information on metropolitan area networks that exist or are
planned in the USA and worldwide. I particular I need information
on the users of these networks, how they are funded, the technology
used, and the services delivered. Please e-mail to me directly at:

richard@technology.com

Many thanks.
(any articles on this subject would be helpful, also)

Richard Murphy
Southwest Research Institute

-------------------------------------------------------

Date: Tue, 08 Sep 92 14:11:58 -0400
From: jmwobus@mailbox.syr.edu
Subject:      Rural Telecommunications Plan

I am requesting input on this design for several rural school districts
PK-12.  They plan to use it to share personnel as well as network
resources.  They also want to upgrade the system to full Internet
connectivity.   I have three Autocad drawings of the system that give more
explanation.   Please mail me a "Request for Drawings" and I will send them
in MIME format unless you request encoded.

The following is an overview of the design and is only a preliminary setup.

Michael Whitworth
whitwort@tenet.edu

			Equipment Overview

    Several diagrams have been included to facilitate the explanation of
    the proposed network.  INFO-NET 1 Network Layout displays a block
    diagram of the equipment and facilities required for the completion of
    this project.  Each school will be connected to a centralized location
    (Lohn Central Office) with a digital fiber-optic network.  School owned
    equipment located at the Lohn Central Office site will provide for the
    interconnection between the individual schools for both video and
    computer networks.  Each school will be equipped with a computer lab
    and an interactive video classroom, each of which will be connected to
    the centralized location to allow access to any other school on the
    network.  This entire network will then be connected to a similar
    network (called INFO-NET 2) to allow even greater resource access.

    Interactive Video Classroom Equipment

    Each school will designate a classroom in which to install the
    interactive video equipment.  No special modifications to the classroom
    are expected.  Central Texas Telephone Cooperative (the local exchange
    carrier) will bring a fiber-optic cable into the interactive video
    classroom and terminate it on a school owned fiber patch panel which
    will serve as the demarcation point.  The fiber-optic terminal will
    convert the optical signal into an electrical DS-1 circuit that will be
    terminated on a DSX-1 cross-connect panel.  A customer service
    unit/data service unit (CSU/DSU) will terminate and demultiplex the
    DS-1 signal into two (2) channels.  The first channel will be 1.2 Mb/s
    and will provide the two way video signal to the DS-1 video codec.  The
    second channel will provide the full period connection between the
    local area network and the wide area network controller located in the
    Lohn Central Office.

    The DS-1 codec is capable of terminating several video devices (i.e.,
    monitors, cameras, VCRs etc.) and selecting which one will be
    transmitted over the network.  An audio mixer takes the inputs of
    multiple microphones (including wireless) and combines them into a
    single signal for transport with the video signal.  The mixer also
    takes incoming audio signals from the network, amplifies and
    distributes them to a series of speakers located throughout the
    classroom.  An input for a Laser Disk Player allows, under the
    direction of a software program, the viewing of data interactively with
    multiple, remote sites.  All video signals and cameras are under the
    complete control of the instructor and can be changed, selected, etc.
    at any time.

    The cameras will be placed in discreet locations in order to provide
    adequate coverage of the desired subject.  The instructor camera will
    be dedicated to monitoring and following the instructor.  The pan/tilt
    base with an optional automatic tracking system will allow the camera
    to track an instructor's movements about the room without the  need for
    human intervention.  The student camera will allow full pan/tilt and
    zoom functions, but without the auto-tracking feature.  The overhead
    camera with zoom capabilities will be mounted on a light stand or over
    the instructor's desk.  This will allow objects, papers, etc. to be
    displayed on the interactive video network.  Two monitors will be
    placed facing these on opposite sides of the room for easy viewing from
    any seat.  The third monitor will face the instructor to allow viewing
    of remote sites and/or the signal being transmitted.

    To allow for the transmission and receipt of written documents, each
    site will be equipped with a fax machine and a small copier.  This
    arrangement will allow an instructor to send a test to a remote
    location, have it copied and distributed, and the tests returned to the
    instructor via fax all during a single class session.

    Each school district's fiber terminal will be connected to a fiber
    terminal owned by Central Texas Telephone Cooperative.  CTTC will route
    all DS-1 circuits from each school through its fiber network to the
    Lohn Central Office.  The optical signal will be reconverted to an
    electrical DS-1 circuit and terminated on a school owned CSU/DSU, like
    is being provisioned in each classroom.   This CSU/DSU will split the
    DS-1 circuit into the two channels and route them to either the WAN
    Access Controller or to the Video Switch.  The video switch will accept
    the input from each of the CSU/DSUs and allow for the bridging of those
    signals to any of the other input ports.  Each school will have
    complete access and control over the video switch for class setups,
    administration, etc.  The video switch, WAN Access Controller, and the
    CSU/DSUs will be owned by the INFO-NET 1 school districts, but will be
    located on leased floor space to facilitate circuit routing.

    Local Area Network Equipment

    A Local Area Network (LAN) will be installed at each school utilizing
    existing IBM compatible personal computers.  Equipment provided by this
    grant includes a file server, communications server, LAN operating
    system, and a tape backup.  Additionally, a Wide Area Network (WAN)
    Access Server will be installed in the Lohn Central Office and a CD ROM
    and Laser Disk Player will be installed on the Lohn School District's
    LAN.  The provided equipment will allow the computers at each school
    complete access to files and programs on the LAN as well as access to
    modems on the communications server.  The WAN Access Server will
    connect to each of the LAN file servers to provide access between the
    separate LAN systems.  This interconnection will allow the access, use,
    and sharing of data and software between computers, LANs, etc.  Access
    to INFO-NET 2 will allow the same shared access across the WAN as well.

    The LAN file server will be a personal computer based in the Intel
    486/50 processor and EISA bus architecture.  The server will be
    equipped with a network interface card that will allow connection to
    the other computers and a router card for connection through the DS-1
    video codec's channel  #2 to the WAN access controller in the Lohn
    Central Office.  The network interface card will be connected to the
    existing PCs with a coax cable.  The PCs will connect to this coax
    through a network interface cards being provided in this grant.
    Communication software for this network will be Novell's Netware 3.11,
    an 802.3 compliant network operating system.

    The communications server will be a personal computer based on the
    Intel 486/33 processor operating under MS-DOS.  The server will be
    equipped with a network interface card, four (4) modems, and modem
    controlling software.  Four (4) direct telephone lines will be provided
    from the local exchange carrier for connection to the modems.

    The CD ROM and Laser Disk players will be attached to existing personal
    computers in the LAN.  Each computer will be equipped with the required
    interface cards and operating software to allow for the remote access
    and operation of each of the devices.  Access to these devices will be
    on a first-come, first-serve basis for all computers linked into the
    WAN.  Software for the CD ROM, Laser Disk, and LAN based packages will
    be determined by the school districts' needs.

-------------------------------------------------------


End of BIG-LAN Digest
*********************
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU