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Browse Prior Art Database

Data Trace for IBM PC Network SNA 3270 Emulation Program

IP.com Disclosure Number: IPCOM000060233D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Carver, M: AUTHOR [+5]

Abstract

A method is described which provides an operator with a flexible, online trace function that records SNA data for diagnostic purposes. The IBM PC Network SNA 3270 Emulation Program is a program product which emulates a 3274 Control Unit, 3278/3279 display, and a 3287 printer. The program connects to the host using a Synchronous Data Link Control (SDLC) communications facility, and it sends data using the Systems Network Architecture (SNA) protocol. The program can be configured as a stand-alone workstation which connects to the host through an SDLC communications link and emulates a 3274 Control Unit with a single 3278/3279 display and 3287 printer. It can also be configured to run on the IBM PC Network.

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Data Trace for IBM PC Network SNA 3270 Emulation Program

A method is described which provides an operator with a flexible, online trace function that records SNA data for diagnostic purposes. The IBM PC Network SNA 3270 Emulation Program is a program product which emulates a 3274 Control Unit, 3278/3279 display, and a 3287 printer. The program connects to the host using a Synchronous Data Link Control (SDLC) communications facility, and it sends data using the Systems Network Architecture (SNA) protocol. The program can be configured as a stand-alone workstation which connects to the host through an SDLC communications link and emulates a 3274 Control Unit with a single 3278/3279 display and 3287 printer. It can also be configured to run on the IBM PC Network. For this setup, one station called a "Gateway" has an SDLC communications link to the host and acts as a 3274 Control Unit to which up to 32 displays/printers can be attached via the PC Network. The stations which attach to the "Gateway" are configured as Network Stations, and they communicate with the host through the "Gateway." In all of the configurations, a means of recording SNA data that arrives at and leaves from the station is needed. In the stand-alone, it must record data to and from the host. In the "Gateway," it must record data to the host from the attached Network Stations and from the host to the Network Stations. In the Network Station, it must record data sent to and from the "Gateway." The...