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Testing Deterministic Avionics Networks Using Orthogonal Arrays

Authors:
Muhammed Efe Altuntaş
İbrahim Hökelek
Muhammed Şeker
Selim Demir
Erhan Akdoğan
Pınar Kışla
Eyüp Can Akpolat

Keywords: orthogonal array; test generation; deterministic network; ARINC 664; avionics.

Abstract:
ARINC 664 is a widely used Ethernet-based deterministic network (dtn) standard providing the bounded latency and jitter for safety critical applications in the avionics systems. It is not possible to generate a test suite with a feasible size without employing a formal method such as orthogonal arrays (oas) if we consider all possible combinations of dtn switch configuration parameters such as the number of virtual links (vls), the frame size, and bandwidth allocation gap for each connection. However, using oas is not sufficient to generate test cases representing real-life usage of dtn switches since many combinations of vl parameters may be inadvertently eliminated by the oa generation process. In this paper, we present an approach, called chained oas, where multiple applications of oas are applied to the test factors to generate test cases that are representative of real-life usage of dtn switches. The test cases are converted into executable test scripts to be run by the aim commercial test system. This study shows that chained oas method is capable of reducing prohibitively large number of tests required for complex systems, while covering pair-wise combinations of all test parameters.

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2021

Publication date: October 3, 2021

Published in: conference

ISSN: 2308-4278

ISBN: 978-1-61208-886-0

Location: Barcelona, Spain

Dates: from October 3, 2021 to October 7, 2021