A framework of a survivable optical Internet using short leap shared protection (SLSP)

Survivability and continuity of service to the end users during the occurrence of faults have evolved to be critical issues in the aspect of control and management of the next-generation Internet. The ordinary path-based and link-based shared protection schemes can only provide a limited spectrum of protection services with coarse protection granularity, which will not be able to satisfy the versatile requirements of multimedia applications on the Internet in the foreseeable future. We propose a framework, short leap shared protection (SLSP), for service-guaranteed end-to-end shared protection for the optical Internet. We describe the algorithm for implementing this idea in detail and show that SLSP enhances the 1:N and M:N shared protection schemes in terms of scalability, flexibility and class of service.