Abstract

The paper presents a tutorial on multilayer recovery methods. Emphasis is laid not on their procedural operation, but rather on their quality assessment and differentiation based on reliability parameters (e.g., availability, recovery time) and other relevant features (e.g., affected traffic, state overhead).A brief outline of terminology related to multilayer networks is given. Then, an overview of recovery methods is presented, with focus on multilayer recovery. Next, quality features enabling assessment of multilayer recovery are given along with general approaches to service differentiation based on resilience.

© 2010 IEEE

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