Analysis and comparison of recovery schemes for GMPLS controlled intelligent optical networks

Survivability will be an important asset of an emerging GMPLS controlled intelligent optical networks (ION). ION survivability solution has many requirements, some of which conflict with others. A series of recovery schemes have been proposed by IETF under GMPLS framework to provide different tradeoffs between these requirements. The recovery schemes are implemented through specific recovery strategies including algorithms and protocol extensions. This paper first presents a survey on these recovery schemes and also on the recovery strategies available in literature to implement them. Then the performance of these recovery schemes will be analyzed and compared both theoretically and through simulation.