Modeling of Multilayer Networks for Fault Restoration Analysis

Abstract

As new network technologies appear, the number of different types of networks present around us is even more increasing. Many of them are in a client server relationship. The need for an integrated analysis of their operation is therefore becoming necessary since they are interdependent, not only for achieving a certain level of service to the user but also to have efficient use of resources. The beginning of this analysis is to create a model of the multilayer network. In this paper we outline a methodology we applied to create a model of a multilayer ATM (Asynchronous Transfer Mode) on SDH (Synchronous Digital Hierarchy) network architecture which we used to study a new scheme of integrated fault restoration. Together we describe the most important issues behind creating a model from design and also new issues related to restoration that are born in a multilayer approach.