Control Plane Architecture and Design Considerations for Multi-Service, Multi-Layer, Multi-Domain Hybrid Networks

In this paper we discuss key architecture and design considerations associated with the development of a control plane capable of dynamic provisioning in this heterogeneous multi-domain, multi-layer, multi-service hybrid network environment . We present a framework for addressing the heterogeneous nature of the hybrid networks via the development of a flexible set of mechanisms which address the key control plane functions of routing, path computation and signaling. An interoperable set of constructs are proposed based on GMPLS and Web service for seamless provisioning across heterogeneous data and control planes. This paper also includes a discussion of our recent design and implementation efforts to instantiate these concepts on ESnet, USN, and the Internet2 Networks.