COMPAQ


          Compaq SNA Server for OpenVMS Alpha

          Dear Customer,

          Thank you for purchasing the Compaq SNA Server for OpenVMS
          Alpha, Version 1.1 software product (hereafter referred to as
          SNA Server). For complete information about the product, refer
          to the Compaq SNA Server for OpenVMS Alpha Software Product
          Description (SPD 70.89.xx).

          Features

          SNA Server is a layered software product that allows OpenVMS Al-
          pha systems to communicate with IBM systems using the IBM System
          Network Architecture (SNA) protocols. Using SNA Server and one
          or more SNA access routines, users can access IBM application
          programs or other system resources, act as a 3270 display sta-
          tion, exchange data files and documents with an IBM host, and
          implement distributed application programs that run between the
          OpenVMS Alpha and IBM systems.

          Architecturally, an OpenVMS Alpha system running SNA Server ap-
          pears to the SNA network as a physical unit type 2.0 node, and
          is attached to the SNA network through synchronous communica-
          tions devices or an X.25 network to an IBM 37xx communications
          controller. The SNA server software supports a maximum of 255
          concurrent SNA logical unit sessions per PU. Both local and re-
          mote connections are supported from the SNA server into the IBM
          SNA network, using switched or leased lines in point-to-point or
          multipoint environments.

          With Version 1.1, Compaq SNA Server for OpenVMS Alpha now sup-
          ports multiple communication lines. Your total session limit and
          line speed will depend on the memory and communications options
          installed on the Alpha CPU on which the SNA Server is running.

          An SNA Server consists of the following software:

          o  Wide Area Network Device Drivers: The SNA Server's Syn-
             chronous Data Link Control (SDLC) module is layered upon
             the WANDRIVER (device name WAN0:), WANDD, and the synchronous
             communications hardware. The WANDRIVER and WANDD software are
             part of the Compaq X.25 for OpenVMS Alpha product. A license
             for Compaq X.25 for OpenVMS Alpha is not required.

          o  X.25 for OpenVMS software: The SNA Server's Qualified Logical
             Link Control (QLLC) module is layered upon the X.25 for
             OpenVMS Alpha software. For X.25 support, the SNA Server
             requires the full Compaq X.25 for OpenVMS Alpha product,
             Version 1.5 or later.

          o  SNA Server: The SNA Server includes several modules that
             implement the SNA protocols and the necessary management
             software for these modules.

 






          o  Access routines: The individual software products that use
             the SNA Server to access programs and information on the IBM
             systems. See the SPD for a list of access routines supported
             by SNA Server.

          Documentation

          The SNA Server software documentation set includes the following
          manuals:

          o  Compaq SNA Server for OpenVMS Installation and Configuration

          o  Compaq SNA Server for OpenVMS Management

          o  Compaq SNA Server for OpenVMS Problem Solving

          o  Compaq SNA Server for OpenVMS Guide to IBM Parameters

          Documentation is available in online format as part of the Open-
          VMS Alpha Online Documentation Library on CD-ROM. Hardcopy doc-
          umentation may also be ordered. Visit the following World Wide
          Web address for information about how to order documentation:

             http://www.openvms.compaq.com/

          Installation

          Register and load the product's PAK using the the OpenVMS Li-
          cense Management Facility before you begin installation. Refer
          to the OpenVMS License Management Utility Manual for complete
          licensing information.

          To install, enter the following command:

             $ @SYS$UPDATE:VMSINSTAL SNASERV011 ddcu: [OPTIONS N]
          <Return>

          where ddcu is the name of the device where the distribution kit
          is mounted.

          Compaq recommends that you read the Release Notes for any tech-
          nical issues before you begin installation. See the Installation
          manual for instructions on how to access the Release Notes.

          © 2001 Compaq Computer Corporation

          COMPAQ and the Compaq logo Registered in U.S. Patent and Trade-
          mark Office. DECnet and OpenVMS are trademarks of Compaq Infor-
          mation Technologies Group, L.P. in the United States and other
          countries.

          All other product names mentioned herein may be trademarks or
          registered trademarks of their respective companies.


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