Modelling spreading of failures in GMPLS-based networks
M. Manzano, Juan Segovia, Eusebi Calle, Pere Vilà, Jose Luis Marzo · 2010
Abstract—In this paper, a new model to simulate different failure propagation scenarios in GMPLS-based networks is pro-posed. Different types of failures and malfunctions may spread along the network following different patterns (hardware fail-ures, natural disasters, accidents, configuration errors, viruses, software bugs, etc). Current literature presents several models describing how failures could spread throughout the network. However, existing models usually consider failures affecting single nodes instead of connections, as in transport networks. The proposed model also takes into account GMPLS node failures, affecting both data and control planes. This model has been evaluated using exhaustive simulations and several failure prop-agation scenarios have been identified. These scenarios can be used to develop and evaluate protection / immunization schemes in order to minimize the impact of failures.