Towards end-to-end network resilience

Telecommunications networks have evolved towards a unified, service-oriented, operator-governed and autonomic managed infrastructure. Unification ensures interoperability and federation among different domains, technologies, architectures, while allowing the joint consideration of network and service aspects towards a “network as a service” view. Autonomicity reduces operational expenditures and governance guarantees operator control over the entire network. In this new environment, the meaning of network resilience must be revised in an end-to-end manner. This paper focuses on network resilience, identifies the principal network resilience concepts and proposes an ontology, which describes the content and the interactions between the resilience concepts.