Presentations -

Path Reconfiguration Method Using Next Hop Table for Autonomous GMPLS Control in Energy Efficient Network MiDORi

Yuki NOMURA, Jumpei MARUKAWA, Haruka YONEZU, Hidetoshi TAKESHITA, Yuji OIKAWA, Daisuke ISHII, Satoru OKAMOTO, YAMANAKA NAOAKI

IEICE Technical Report on Photonic Network (Kagoshima, Japan) , 

2011.02

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Oral presentation (general)

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With the advance of ubiquitous society including IPv6, it is expected that everything will be connected to the networking environment. Then, a ubiquitous grid networking environment (uGrid) has been proposed. In uGrid, everything from a device to a program is defined as “Service-Part”, and new mash-up services can be provided by connecting several Service-Parts. In this paper, IP Routing/Signaling-based uGrid service provisioning is proposed as a new concept for realizing uGrid. The feature of this concept is to assign IP addresses to Service- Parts and execute uGrid service provisioning in the network layer (IP protocol layer). IP protocol is an originally scalable protocol. Also, many sophisticated technologies accumulated for years can be used in IP protocol. Therefore, by using IP protocol, the construction of scalable and intelligent uGrid is expected. As key techniques, Service Routing and Service Signaling are introduced, and the issues of each technique are listed. By experiment, it was confirmed that the provisioning of a simple video grid service was succeeded by Service Signaling.

A Design Method of Large Scale Optical Switching Network with Low Optical Loss and High Reliability

Takehiro SATO, Kunitaka ASHIZAWA, Kazumasa TOKUHASHI, Daisuke ISHII, Satoru OKAMOTO, Eiji OKI,YAMANAKA NAOAKI

IEICE Technical Report on Photonic Network (Kagoshima, Japan) , 

2011.02

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Oral presentation (general)

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現在のインターネットの消費電力を大幅に削減する手法として, 1台の大容量ルータと数千から数万のユーザを1ホップで接続する光アグリゲーションネットワークが提案されている. 本研究では, 多段に接続した2x2PLZT光スイッチを用い, ツリー型トポロジとリング型トポロジの特徴を組み合わせることにより, 低光損失および高信頼性を満足する全光アグリゲーションネットワークを構築する手法について検討を行った.

A Novel IP Routing/Signaling Based Service Provisioning Concept for Ubiquitous Grid Networking Environment

Daisuke Ishii, Kenta Nakahara, Satoru Okamoto,YAMANAKA NAOAKI

IEEE Globecom 2010 Workshop on Ubiquitous Computing and Networks (UbiCoNet2010) (Miami, Florida, USA) , 

2010.12

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Oral presentation (general)

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With the advance of ubiquitous society including IPv6, it is expected that everything will be connected to the networking environment. Then, a ubiquitous grid networking environment (uGrid) has been proposed. In uGrid, everything from a device to a program is defined as “Service-Part”, and new mash-up services can be provided by connecting several Service-Parts. In this paper, IP Routing/Signaling-based uGrid service provisioning is proposed as a new concept for realizing uGrid. The feature of this concept is to assign IP addresses to Service- Parts and execute uGrid service provisioning in the network layer (IP protocol layer). IP protocol is an originally scalable protocol. Also, many sophisticated technologies accumulated for years can be used in IP protocol. Therefore, by using IP protocol, the construction of scalable and intelligent uGrid is expected. As key techniques, Service Routing and Service Signaling are introduced, and the issues of each technique are listed. By experiment, it was confirmed that the provisioning of a simple video grid service was succeeded by Service Signaling.

Next Generation High-reliable Optical Access Network Using Ultra-high Speed Optical Switches

Takehiro SATO, Kunitaka ASHIZAWA, Kazumasa TOKUHASHI, Daisuke ISHII, Satoru OKAMOTO, YAMANAKA NAOAKI

The 7th IEEE Tokyo Young Researchers Workshop (Tokyo Tech Front,Tokyo Institute of Technology,Tokyo,Japan) , 

2010.11

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Poster presentation

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We have proposed a novel access network system using ultra-high speed optical switches, called ActiON (Active Optical Network). Compared to PON (Passive Optical Network), which is widely used as an access network today, ActiON can increase the number of subscribers and the transmission distance by applying optical switches. ActiON resolves digital divide issues because it covers mountain areas or highly-populated areas such as China, where are difficult to be supported by PON. In addition, various services are provided to subscribers through optical access networks in recent years, including lifeline services such as a telephone service and mission-critical services such as a business transaction. High reliability is a very important issue for the next generation optical access network, because users of these services suffer a heavy loss when a failure occurs on the network. In this presentation, we focus on improvement of reliability and propose novel protection schemes for ActiON. We show that optical switches enable ActiON to implement redundancy configuration flexibly and realize a cost-effective protection.

A Proposal of A uGrid Video Delivery System Considers Connection Stability

AlatengSongbuer, Kenta Nakahara, Shota Yamada, Ko Kikuta, Satoru OKAMOTO, YAMANAKA NAOAKI

The 7th IEEE Tokyo Young Researchers Workshop (Tokyo Tech Front,Tokyo Institute of Technology,Tokyo,Japan) , 

2010.11

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Poster presentation

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In the ubiquitous society that obtains a huge address space by making to IPv6, it is assumed that all devices are connected to the network. We propose that the devices connected to the network are defined as “Service-Part” in Ubiquitous Grid Network Environment (uGrid), and the users can provide new services by selecting desired Service-Parts and combining. However, a number of users’ accessing popular Service-Parts can occur load concentration. And so, load distribution of Service-Parts become possible by advertising the user who connect to the Service-Parts as new Service-Parts, and connecting between users. However, the services of the users who connect with the relay users are interrupted if the relay users secede suddenly. Especially, the video delivery system becomes a major issue especially. In the present study, it proposes the video delivery system to consider connection stability.

Ultra High Speed Wavelength Selective Switching Technique for Optical Aggregation Network

Yutaro HARA, Yuji SHIMADA, Takehiro SATO, Kunitaka ASHIZAWA, Kazumasa TOKUHASHI, Daisuke ISHII, Satoru OKAMOTO, YAMANAKA NAOAKI

The 7th IEEE Tokyo Young Researchers Workshop (Tokyo Tech Front,Tokyo Institute of Technology,Tokyo,Japan) , 

2010.11

, 

Poster presentation

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The Internet is composed by many routers. On the other hand, energy consumption of all routers in the Internet is an important problem. Because of increasing the transmitting speed, it reached 7.3TW/h in 2008, and now, it reaches 13TW/h in 2010. Thus, we have proposed the Optical Aggregation Network which aggregates many routers into one cloud router and creates a simple tree-based network for reducing the energy consumption of all routers intensively for saving earth. In this presentation, we propose ecological scalable WDM Network by using PLZT optical WSS (Wavelength Selective Switch) for implementing the Optical Aggregation Network. This PLZT WSS has slot switching function. Therefore, it could extend the distance of network and could add more subscribers to implement ecological scalable network.

A Study on Intermediate Network Structure between Data Centers for a Intelligent Cloud Network using Parallel Transmission System

Shota Yamada, Kenta Nakahara, Daisuke Ishii, Satoru Okamoto, YAMANAKA NAOAKI

The 7th IEEE Tokyo Young Researchers Workshop (Tokyo Tech Front,Tokyo Institute of Technology,Tokyo,Japan) , 

2010.11

, 

Poster presentation

　View Summary

With the appearance of the cloud network, high speed data communication among data centers is necessary. However, because the data is transmitted through the Internet, network bandwidth is not enough. To construct large bandwidth WAN at low cost, we propose an Intelligent Cloud Network. In the Intelligent Cloud Network, data delivered with parallel transmission and lower cost private lines that are lower bandwidth are applied as multiple routes. In this paper, we propose parallel transmission system. In this system, parallel routes are set up with GMPLS. The proposed system is implemented on the software switch to evaluate parallel transmission.

Energy Optimal Network Topology Design Method by QoS Aware Link Power Management

Haruka Yonezu, Daisuke Ishii, Satoru Okamoto, Eiji Oki, YAMANAKA NAOAKI

The 7th IEEE Tokyo Young Researchers Workshop (Tokyo Tech Front,Tokyo Institute of Technology,Tokyo,Japan) , 

2010.11

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Poster presentation

Study on the Virtual Machine Migration Scheme for the Realization of Follow the SUN Data Center

Haruki Takahashi, Hidetoshi Takeshita, Daisuke Ishii, Satoru Okamoato,YAMANAKA NAOAKI

IEICE Technical Report (東京都文京区 日本女子大学 目白キャンパス) , 

2010.11

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Oral presentation (general)

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Recent years, the power supply becomes a problem because the number of users of the data center increase rapidly as cloud computing develops. In the world wide trend getting rid of fossil fuel and nuclear energy, it is hoped to use the photovoltaic power generation which is natural energy effectively. But, it is impossible to provide services at nighttime. By moving virtual machines according to the motion of the sun, the photovoltaic natural energy can be used effectively. Then, we aim at the realization of Follow the SUN Data Center which sends and receives virtual machines between geographically away data centers. In this paper, we consider the virtual machine migration scheme using existing techniques which solve the communication continuity problem between user and virtual machine. Also, we compare existing techniques, and we consider the possibility of realizing Follow the SUN Data Center.

Proposal of the MiDORi GMPLS Traffic Engineering for Energy Optimal Traffic Controlled Networks

Satoru Okamoto, Ko Kikuta, Daisuke Ishii, Eiji Oki, YAMANAKA NAOAKI

13th Annual International Conference on Next Generation Internet and Related Technologies(MPLS2010) (Washington, DC) , 

2010.10

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Oral presentation (general)

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This presentation describes newly developed GMPLS extensions for realizing energy optimal traffic engineering technologies. We are developing “MiDORi (Multi- (layer, path, and resources) Dynamically Optimized Routing) Network Technologies” that is composed of a low energy consumption network design tool (MiDORi PCE), GMPLS extensions (MiDORi GMPLS) for controlling network equipment and a MiDORi router/switch controlled by MiDORi GMPLS. “midori” is a Japanese word which means “green” in English. In the presentation, the detail GMPLS extensions (OSPF extension, RSVP extension, and LMP extension) and experimental results of MiDORi Network Technologies will be presented.

QoS Aware Energy Optimal Network Topology Design and Dynamic Link Power Management

Haruka Yonezu, Ko Kikuta, Daisuke Ishii, Satoru Okamoto, Eiji Oki, YAMANAKA NAOAKI

36th European Conference and Exhibition on Optical Communication (ECOC2010) (Torino, Italy) , 

2010.09

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Oral presentation (general)

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To construct energy optimal Internet, a new traffic engineering concept aggregating traffic into specific links and dynamically powering off interfaces of routers/switches should be introduced. This paper proposes a network topology design algorithm and examines link power management.

The proposal of Service Gateway redundant mechanism

Takashi Kurimoto, Satoru Okamoto, YAMANAKA NAOAKI

IEICE Society Conference (大阪府堺市) , 

2010.09

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Oral presentation (general)

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ユーザがアクセス網を介してサービスゲートウェイに接続され, ユーザ毎のサービス加入状態に応じてサービス網への接続制御を行うネットワークにおいて, 経済的に高信頼を実現するサービスゲートウェイ構成の提案を行う.

Addressing Scheme of the New Generation Wide-Area Layer-2 Networks

Satoru Okamoto, Ko Kikuta, Daisuke Ishii,YAMANAKA NAOAKI

IEICE Society Conference (大阪府堺市 大阪府立大学) , 

2010.09

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Oral presentation (general)

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イーサネットサービスの高度化に伴いキャリアグレードイーサネットを凌駕する次世代広域レイヤ２網が求められている. 我々は, イーサネットをベースとした新たなレイヤ２プロトコル技術(New Generation Layer-2: NGL2)を提案し, 要素技術の開発及びプロトタイプシステムでの実証実験を進めてきた. 本論文では, NGL2におけるアドレス割当手法, パス設定時のシグナリングにおけるユーザサイドクロスコネクション設定手法を検討した結果を述べる.

Addressing and edge node cross-connection indication method of the new generation wide-area layer-2 networks

Satoru Okamoto, Ko Kikuta, Daisuke Ishii,YAMANAKA NAOAKI

IEICE Technical Report (北海道虻田郡 洞爺観光ホテル) , 

2010.09

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Oral presentation (general)

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As increasing Ethernet service users and enhancing service functions, a new generation wide-area layer-2 network (NGL2) beyond the state-of-the-art carrier grade Ethernet is expected. For realizing the next generation layer-2 network, we have proposed new layer2 protocol technologies based on Ethernet technologies and have developed prototype systems. In this article, a newly developed layer-2 address (MAC address) assignment policy will be described. And, user side cross-connection setting scheme for setting up end-to-end layer-2 path will be proposed.

Realizing the Scalable Service Provisioning in Ubiquitous Networking Environment(uGrid) by Extending Routing Protocol

Kenta Nakahara, Kou Kikuta, Shota Yamada, Daisuke Ishii, Satoru Okamoto,YAMANAKA NAOAKI

IEICE Technical Report (宮城県仙台市 東北大学) , 

2010.09

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Oral presentation (general)

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With the advance of ubiquitous society, it is expected that everything will be allocated IP address and connected to the network. In a ubiquitous grid networking environment(uGrid) we have proposed, we define not only devices but also program functions and contents as “Service-Part” by allocating IP address. uGrid provides mush-up desired service for users along the flow of service by interconnecting various Service-Parts. Because we allocate IP address to Service-Parts we can manage Service-Parts within Network layer. Then, we propose a new system “Service-Routing” by which service provision in uGrid scales all over the world. In proposal, we propose the Network System where Service-Parts advertise the Service Cost in the same way routers advertise the link cost, which is feasible by extending OSPF. By calculating the route of the flow of service in this system, appropriate service provision that is not achievable with application layer can be realized. Thus, additionally, we propose routing scheme of flow of service by ILP(integer linear programming) and extending Dijkstra method. We evaluated the effectiveness of proposal by computer simulation.

MiDORi: Energy efficient network based on optimizing network design tool, remote protocol and new layer-2 switch

YAMANAKA NAOAKI, Hidetoshi Takeshita, Satoru Okamoto, Shan Gao

9th International Conference on Optical Internet (COIN 2010) (The Shilla Jeju, Korea) , 

2010.07

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Oral presentation (general)

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Extended MPCP (IEEE802.3av) data transmission experimental system for optical slot-based Access Network is designed. The slot-based two-way communication was successfully established by extended MPCP. The method does not need to analyze frame-header at switch system.

Extended MPCP Slot Data Transmission Experimental System for Active Optical Access Network

Kazumasa Tokuhashi, Takehiro Sato, Kunitaka Ashizawa, Daisuke Ishii, Satoru Okamoto, YAMANAKA NAOAKI

15th OptoElectronics and Communications Conference (OECC2010) (Sapporo, JAPAN) , 

2010.07

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Oral presentation (general)

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Extended MPCP (IEEE802.3av) data transmission experimental system for optical slot-based Access Network is designed. The slot-based two-way communication was successfully established by extended MPCP. The method does not need to analyze frame-header at switch system.

GMPLS aware intelligent cloud network

Shota Yamada, Jumpei Marukawa, Daisuke Ishii, Satoru Okamoto, YAMANAKA NAOAKI

6th International Conference on IP+Optical Network (iPOP2010) (Musashino-shi, Tokyo, JAPAN) , 

2010.06

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Oral presentation (general)

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With the appearance of the cloud network, high speed data communication among data centers is necessary. However, because the data is transmitted through the Internet, network bandwidth is not enough. To construct large bandwidth WAN at low cost, we propose an Intelligent Cloud Network. Fig.1 shows basic concept of the Intelligent Cloud Network. In the Intelligent Cloud Network, data delivered with parallel transmission and lower cost private lines that are lower bandwidth are applied as multiple routes. In this paper, we propose parallel transmission system. In this system, parallel routes are set up with GMPLS. Under the GMPLS environment, OSPF is used on the control plane. Every node in proposal environment can realize the network topology in order to advertise and exchange the route information to each other. In the proposed system, OSPF is used to discover the multi-path between two TCP over SCTP adaption gateways and RSVP plays a role to establish parallel routes between two gateways. The proposed system is implemented on the software switch, as shown in Figure2, and end-to-end throughput is evaluated.

Efficient Singlecast / Multicast Method For Active Optical Access Network Using PLZT High-speed Optical Switches

Kunitaka Ashizawa, Kazumasa Tokuhashi, Daisuke Ishii, Satoru Okamoto, Naoaki Yamanaka, Eiji Oki

High Performance Switching and Routing(HPSR2010) (Richardson, Texas, USA) , 

2010.06

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Oral presentation (general)

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We propose a new efficient singlecast / multicast method for active optical access network using PLZT 10 nsec high-speed optical switches. The Active Optical Network, called ActiON, has been proposed using slot type switched optical network. Compared with Passive Optical Network (PON), ActiON can quadruplicate the number of subscribers (128 users) per OLT and double the maximum transmission distance (40 km) between OLT and ONUs. However, ActiON uses slot based switching method, so it is difficult to realize the multicast delivery. In this paper, we propose the efficient singlecast / multicast method for ActiON by using PLZT optical switch elements which are controlled as ”distribution mode” like an optical splitter by applying mid-control voltage. In addition, a new efficient multicast slot allocation method is proposed and formulated as a linear programming problem. This formula develops the maximum number of users which is able to be connected by multicast and the minimum number of slots is used for multicast users.

Low Bandwidth Consumption Multicast Fingerprinting by using Multi P2MP LSPs in MPLS Network

Jun Matsumoto, Shan Gao, Sho Shimizu, Daisuke Ishii, Satoru Okamoto, YAMANAKA NAOAKI

IEICE Technical Report (青森県十和田市 奥入瀬渓流ホテル) , 

2010.04

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Oral presentation (general)

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This paper proposes the method for multicast fingerprinting by using multi P2MP LSPs in MPLS Network. Multicast fingerprinting technology achieves the saving of bandwidth consumption and the tracing traitors simultaneously. While the conventional method based on encryption has the shortcomings in bandwidth consumption on entire network and traceability for traitors, our proposed method improves those two elements since useless block transfers are not occurred at all. Computer simulations show that the proposed method excels in the bandwidth consumption.