Abstract

We developed a network virtualization method to represent the resource in the optical backbone network. Multiple service networks are provided on top of a single common optical backbone network. Quick delivery of service networks is thereby achieved. Virtual network topology (VNT) is computed using the optical network resource by employing a heuristic algorithm and a traffic matrix estimation algorithm. VNT is dynamically reconfigured by GMPLS protocols. We developed a prototype-system of traffic engineering server called "IP optical TE server" to demonstrate the proof-of-concept on the testbed consisting of commercial GMPLS routers and optical transport node system. Download