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A personal computer based Integrated Services Digital Network D-channel interface monitor/simulator

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2 Author(s)
Ozerdim, A. ; Dept. of Comput. Eng., Ege Univ., Izmir, Turkey ; Erciye, K.

This study aims to develop a Personal Computer (PC) based software which can be connected to the SO interface of an Integrated Services Digital Network (ISDN) in order to observe the D-channel frames and depict them visually on the monitor. Furthermore, the system can simulate an ISDN terminal by generating the typical actions of a terminal. It is flexible in that it allows the user to set up a scenario for the terminal actions. The ability of observing the frames and setting up a scenario will make the system a powerful tool for the technical user with which he/she can observe the ISDN connection and trace down a problem. The software consists of the monitor/simulator subsystem, D-channel L2 protocol and D-channel L3 protocol handlers. These handlers support Q.921 and Q.931 recommendations of CCITT, respectively. A multitasking executive, which is the subject of another study, has been used as an extension to the underlying operating system in order to run the modules as concurrent processes

Published in:

Networks, 1993. International Conference on Information Engineering '93. 'Communications and Networks for the Year 2000', Proceedings of IEEE Singapore International Conference on  (Volume:2 )

Date of Conference:

6-11 Sep 1993

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