Mr. Sato and Nomura made presentations at Technical Committee on Photonic Network (PN) in Februally 28　‐　March 1.

The titles and authours are as follows.

Authors: Takehiro Sato, Kunitaka Ashizawa, Kazumasa Tokuhashi, Daisuke Ishii, Satoru Okamoto, Eiji Oki, and Naoaki Yamanaka
Title： A Design Method of Large Scale Optical Switching Network with Low Optical Loss and High Reliability
Abstract：An optical aggregation network, which connects an giant router and thousands of users in one hop,has proposed to reduce the power consumption of today’s Internet greatly. This paper shows a design method of an all-optical aggregation network using 2×2 PLZT optical switches. The proposed architecture achieves both low optical loss and high reliability by combining the features of tree topology and ring topology.

Authors: Yuki Nomura, Jumpei Maruyama, Haruka Yonezu, Hidetoshi Takeshita, Yuji
Oikawa, Daisuke Ishii, Satoru oKAMOTO, and Naoaki Yamanaka
Title： Path Recon五guration Method Using Next Hop Table for Autonomous GMPLS Control in Energy efficient Network MiDORi
Abstract：Recently, energy savlng Of network is emerglng aS an important problem due to an increase of trafRc and power consumption･ Thus, we have been proposing the MiDORi(Multi-(layer, path, and resources) Dynamically Optimized Routing) network architecture to achieve energy saving by aggregating the traffic using Traffic Engineering and switching off the unused port of network equipment. In MiDORi, NM(Network Manager) Conagures each switch during path reconfiguration･ However, there is a problem that the configuration time becomes huge in large network. This paper proposes autonomous MiDORi network using modified GMPLS (Generalized Multi Protocol Label Switching), in which signaling protocol controls establishment of paths as well as power of ports for fast reconfiguration･ Moreover, in this paper, new path switching method which each node holds next-hop table for power controlling is proposed. Implementation shows that proposed architecture can redllCe 79% of path establishment time.