GMPLS based all-optical network is the key to maintain the quality of transmission, to reduce operational cost as well as to facilitate the enhancement of all-optical network capabilities. The deployment of peer model for GMPLS-based unified optical control plane enables extension of peer entities, such as monitoring equipment to detect traffic condition and quality condition of dedicated flow. As the real implementations of an optical control plane are still not clear. So, the best way to resolve tactical implementations concerns of GMPLS based optical control plane is to conduct feasibility evaluation. In this paper, we proposed a non-standard optical control device, such as FBG-based tunable CD compensator as a peer entity. We deployed GMPLS peer model and evaluate the feasibility of it in order to realize optical quality control label path.
The National Institute of Informatics (NII) has been conducting joint research with Japan-Telecom to develop a 40 Gbps optical transport system for the next-generation SuperSINET. We report on the recent results of field trials focused on automatic chromatic dispersion compensation and path protection/restoration applied to the future SuperSINET as key technologies required to maintain the quality of transmission, to reduce operational costs, and to facilitate the enhancement of network capabilities. From the results of the field trial, we have confirmed that an automatic optical path control system is essential in an all-optical wavelength path network.
As the demand of high-speed, high-capacity networks is growing, there have been many studies regarding full-optical network technologies. For the realization of the full-optical network in the future, there are several key technologies and issues that have to be considered. This paper addresses the issues and discusses recent activities regarding the integration of full-optical network based on GMPLS. Most of the work report in this paper was done under Super SINET project.
Nowadays, Multiprotocol Label Switching (MPLS) is used inside Autonomous Systems (ASs) for Virtual Private Networks (VPNs) or Traffic Engineering (TE) purposes. The need for inter-AS Label Switched Paths (LSPs) is growing, as carries and Service Providers (SPs) build multi-services network based on MPLSenabled infrastructures. It becomes a key issue to extend the ability to deliver these services across SP domain boundaries.In this paper, we discuss the requirements for the inter-AS MPLS-TE. We also summarize the Path Computation Element (PCE) architecture. Then we explain the approaches of using a PCEfor the LSP path computation in inter-AS MPLS-TE. To illustrate our point, we compare two LSP path computation techniques.
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