Photonic-GMPLS Leading Edge Code [INVITED PAPER]

Research Consortium: Photonic Internet Lab. (PIL) Naoaki Yamanaka

( Ph.D., Professor, Keio University, Dept.of Information and Computer Science, Keio University,

3-14-1, Hiyoshi, Kouhokuku, Yokohama, 223-8522, Japan tel: Tel: +81 45-566-1744 / Fax: +81 45-566-1747 / E-mail: yamanaka@ics.keio.ac.jp）

Abstract: Photonic Internet Lab. (PIL) is shooting for the leading edge photonic-GMPLS (Generalized Multi-protocol Label Switching) that utilizes wide-band, cost-effective photonic technology to implement IP-centric managed networks. PIL is a consortium for researching the GMPLS protocol and advancing a de facto standard in this area. The experimental results, new ideas, and protocols are contributed to standardization bodies such as IETF and OIF. This paper also describes the world's first trial of MPLS / GMPLS interworking with multi-region （multi-layer), multi-route, multi-vender equipments at iPoP 2005 (International Conference on IP Optical). 1. Introduction

The popularity of broadband access services is dramatically raising the amount of Internet backbone traffic. Broadband access is now adopted by more than 10 million users in Japan via ADSL (Asymmetric Digital Subscriber Line) and FTTH (Fiber To The Home) technology. These high-speed subscribers are stimulating new broadband services including content delivery such as still and moving pictures, and VoIP services.

To create photonic GMPLS technologies and protocols, PIL started to submit contributions to standardization bodies. They include ITU as well as IETF and OIF.

This paper describe a structure and activities of PIL. Especially, MPLS / GMPLS interworking, multi-region traffic engineering and protection / restoration in GMPLS are leading edge technology developed by PIL. 2. PIL organization Photonic Internet Laboratory, PIL, was founded in September 2002 to promote research on and development of the next-generation photonic network and to encourage global standardization activities. PIL currently consists of six venders: Keio Univ., NTT, NEC Corporation, Fujitsu Laboratories Ltd., The Furukawa Electric Co., Ltd., Mitsubishi Electric Corporation, Oki Electric Industry Co., and Ltd., Hitachi, Ltd. and IPinfusion PIL activities are supported by research and development aimed at establishing international technical standards as part of the Strategic Information and Communications R&D Promotion Scheme of the MPHPT (Ministry of Public Management, Home Affairs, Posts and Telecommunications), which is funding selected IT activities [1, 2].

PIL's structure is shown in Fig. 1. There are two Working Groups (WGs). Technical test WG tests leading-edge protocol code modules developed by

member companies. On the other hand, the standardization strategy WG is responsible for technical discussions on standardization proposals. It has submitted 22 standardization proposals to IETF and OIF as of June 2003. All the contributions are posted on PIL's WWW site [3].

The working group responsible for technical discussions on the investigation and discussion of members' standardization proposals and the exploration of technical themes.

Standardization Strategy WG

The working group responsible for technical discussions on the investigation and discussion of members' standardization proposals and the exploration of technical themes.

Standardization Strategy WG

The working group that tests the leading-edge protocol code modules developed in each company.

Technical Test WG

The working group that tests the leading-edge protocol code modules developed in each company.

Technical Test WG

Steering CommitteeSteering Committee

Fig.1 PIL organization

PIL member strategies and topics are shown in Fig. 2. Each member has a different direction or strategies for standardization. PIL promotes the core part of the protocol and its extension. In addition, the next step in standards submission and leading edge code developments are the key activities of PIL. Technical items are listed in Fig. 2. PIL has already tested the signaling and routing parts of GMPLS. We intend to cover multi-layer (region) traffic control frame work, reliability, and control network issues from now. 3. GMPLS / MPLS interworking

PIL members, NTT, NEC Corporation, Fujitsu Laboratories Ltd., The Furukawa Electric Co., Ltd., and Mitsubishi Electric Corporation successfully concluded the world’s first MPLS-GMPLS interoperability tests using multi-layer, multi-route GMPLS signaling/routing protocols at MPLS2003, Washington D.C. in Oct. 26-28, 2003. MPLS2003 <www.mpls2003.com> had more than

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Standard core code

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Fig. 2 Leading edge code for next generation photonic network

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00 attendees from major service providers, carriers, and endors. In addition, IETF key persons are joined in the iscussion held at our booth. Starting with the MPLS2003 demonstration, Hitachi

imited joined the team in interworking the MPLS etwork with the GMPLS networks demonstrated in okyo Fashion Town in Jan. 26-27, 2004 at the Gigabit etwork Symposium 2004 in Tokyo, Japan. The trial etwork setup is shown in Fig. 3 and Fig. 4. Since a wide variety of network equipment (e.g. IP

outers and cross connects) will coexist in a GMPLS etwork, it is essential to verify interoperability between ulti-vendor network equipment. We have successfully realized the distribution and

ollection of routing information and the setup of paths in he multi-layer and multi-vender environment. It is ossible to use the various communication paths provided packet, TDM, wavelength, and fiber) according to the ommunication quality demanded.

In addition, this GMPLS backbone network supports wo functions: seamless connection to Metro networks and igh reliability. The former is realized by MPLS and MPLS interworking technology. This

echnology was first verified in the multi-ender environment in October 2003; a world irst.

This experiment successfully transmitted igh-resolution video like digital cinema cross MPLS and GMPLS networks. It onfirms the feasibility of establishing an conomical and highly-reliable IP network hat offers high-resolution video transmission t reasonable cost.

The GMPLS equipment of NEC and itachi in this experiment include the results f research sponsored by TAO Telecommunications Advancement rganization of Japan). . GMPLS Interop showcase public emonstration In Feb. 21-22, iPoP2005 (International

onference on IP Optical) was held in Tokyo

Japan [with boThe coLab, IPIL hdemon

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Fig. 3 Trial network setup using GMPLS and MPLS

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Fig.5 GMPLS Inter

4]. This conference is first international conference oth and GMPLS Interop showcase in Asia / Pacific. nference is sponsored by PIL (Photonic Internet

SOCORE (http://www.isocore.com). At the iPoP, avs an activity on GMPLS Interop Public stration. public demonstration is taken place in Tokyo, Japan irginia, USA. Between Japan and USA, GMPLS ants, Keio Univ., NTT, NEC, Fujitsu, Mitsubishi

c, Hitachi, Furukawa Electric, KDDI, Oki nics, ipinfusion, NTT-AT, Tokyo Technica, Juniper, ore, Cisco, and Avici. The public demonstration ration is shown in Fig.5.

erences ttp://www.soumu.go.jp/s-news/2002/021010_1.html ttp://www.johotsusintokei.soumu.go.jp/whitepaper/ja/h14/tml/E3072000.html ttp://www.pilab.org/ ttp://www.ipop2005.com/

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ope showcase network configuration in iPoP 2005