Functional structure and its verification for neighbor discovery in optical networks

Abstract

Neighbor discovery in IP networks means the activity of identifying adjacent IP layers using the very Hello protocol. Neighbor discovery in optical networks differs from that in IP networks due to the GMPLS architecture that separates control and transport planes. The discovery of control plane is similar to that in IP networks from a perspective of basic mechanism although message flows are different each other. However, the discovery of transport plane has a different situation due to the physical characteristic of optical fibers that lead to identify adjacent peer-to-peer layers using OAM facility. This paper, based on the standardization technology of relevant bodies, defines functional requirements and its structure for neighbor discovery in optical networks. In addition, the paper presents a verification course applied to the proposed structure using a modeling tool, called SPIN.