Dr. Okamoto and Prof. Yamanaka’s paper was accepted for IEICE Transactions on Communications “Special Section on Feature Topics on Latest Trends in Optical Networks”.

Title: “GMPLS interoperability tests in Kei-han-na Info-Communication Open Laboratory on JGN II network”

Authors: Satoru Okamoto (Keio University), Wataru Imajuku (NTT), Tomohiro Otani (KDDI R&D Labs.), Itaru Nishioka (NEC), Akira Nagata (Fujitsu Labs), Mikako Nanba (Furukawa Electric), Hideki Otsuki (NICT), Masatoshi Suzuki (KDDI R&D Labs.), and Naoaki Yamanaka (Keio University)

Abstract: Generalized Multi-protocol Label Switching (GMPLS) technologies are expected a key technology that creates high-performance Internet backbone networks. There were many GMPLS interoperability trials. However, most of them reported the successful results only. How to set up a trial network and how to test it was generally not discussed. In this paper, as a kind of tutorial, detailed GMPLS field trials in the National Institute of Information and Communications Technology (NICT) Kei-han-na Info-Communication Open Laboratory, Interoperability Working Group (WG) are reported. The interoperability WG is aiming at the leading edge GMPLS protocol based Inter-Carrier Interface that utilizes wide-bandwidth, cost-effective photonic technology to implement IP-centric managed networks. The interoperability WG is a consortium for researching the GMPLS protocol and advancing a de facto standard in this area. Its experimental results, new ideas, and protocols are submitted to standardization bodies such as the International Telecommunications Union-Telecommunication standardization sector (ITU-T), the Internet Engineering Task Force (IETF), and the Optical Internetworking Forum (OIF). This paper introduces the activities of the interoperability WG; they include a nationwide GMPLS field trial using the JGN II network with multi-vendor, multi-switching-capable equipment and a GMPLS multi routing area trial that used a multi-vendor lambda-switching-capable network.

Dr. Okamoto’s paper was accepted for IEICE Transactions on Communications “Special Section on Feature Topics on Latest Trends in Optical Networks.”

Title: “Optical Networks Functional Evolution and Control Technologies”

Authors: Peter Szegedi (Magyar Telekom), Tomasz Gajewski (Poznan Supercomputing and Networking Center), Wataru Imajuku (NTT),
and Satoru Okamoto (Keio University)

Abstract: In this paper the current trends in the optical networking including the physical components, technologies and control architectures are discussed. The possible interaction schemes and implementation models of the automatic communication between applications and network as well as between ASON/GMPLS based network domains are proposed. Finally, the related research activities based on simulation results of control plane dimensioning are illustrated and real test bed experiments on OIF worldwide interoperability demonstration and the ongoing European IST project MUPBED are disseminated.

Mr. Kasahara’s paper was accepted for an oral presentation at HPSR2007.

Title: “Design and Implementation of GMPLS-Based Optical Slot Switching Network with PLZT High-Speed Optical Switch”

Authors: Teruo Kasaahra, Masahiro Hayashitani, Yutaka Arakawa, Satoru Okamoto and Naoaki Yamanaka

Abstract: In this paper, we propose a new optical network architecture, called Optical Slot Switching(OSS), suitable for large data transmission where we use PLZT optical switch controlled by GMPLS(Generalized Multi-Protocol Label Switching). PLZT ultra-high speed optical switch can improve the bandwidth efficiency by reducing the guard time between data compared with the conventional optical switch. In OSS network, user dynamically establishes the path and can transport a large size data efficiently by using reserved slots in a moment. Through the experimental results, we show that our proposed OSS is suitable for large data transmission.

Start date/time: Thursday, May 31, 2007
End date/time: Friday, June 1, 2007