Design and implementation of software simulation platform for ATM switching systems

Since the target system, where the software for an ATM switching system will be loaded, has limited resources and various functional constraints, it is difficult to develop and test ATM software on the target system. Therefore, its development and testing are accomplished usually by a general UNIX system. However, testing environment developed until now has emphasized concurrent processing simulation of CHILL language, which means that there have been a great deal of restrictions in testing software of switching systems. In order to resolve this problem, we develop software simulation platform system (SSPS), which is a testing environment to observe and analyze actions of software of ATM switching systems by simulating target environment including the operating system of switching systems at a general UNIX system. SSPS is characterized in that it supports distributed concurrent environment, provides a communication function with an operation and management system, add facilitates extension to testing environment for other systems. The test coverage over all ATM S/W blocks has increased by SSPS