Network Communication Reliability Analysis in Terms of Fault Tree

• Main Authors: FITIGAU Ioan, TOMAI Nicolae, TODEREAN Gavril
• Format: Article
• Language: English
• Published: Editura Universităţii din Oradea 2015-05-01
• Series: Journal of Electrical and Electronics Engineering
• Subjects: Network; Failure; Protocols; Fault Tree; Routing
• Online Access: http://electroinf.uoradea.ro/images/articles/CERCETARE/Reviste/JEEE/JEEE_V8_N1_MAY_2015/FITIGAU_JEEEv8nr1may2015.pdf

In this paper we studied and analyzed a network structure in terms of fault tree. We developed a fault tree based on the network structure to analyze all admissible states of emergency that can lead to non-functioning of the entire network. We studied the damage to the network in terms of primary events that may lead to its malfunction namely: damage to the network links, damage to the routers and damage in the routing protocols functioning. For each scenario possible fault in the network have made minimal cut sets whose appearance will lead to network failure. Also, through the results obtained from monitoring a telecommunications service provider over two years, we watched the likelihood of damage to the analyzed network and finally we discussed the possibilities of preventing damage to the network through optimizations applicable on the links, routing equipment and over the routing protocols.