Japan Geoscience Union Meeting 2016

Presentation information


Symbol M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI21] Earth and planetary informatics with huge data management

Tue. May 24, 2016 10:45 AM - 12:15 PM A02 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Ken T. Murata(National Institute of Information and Communications Technology), Susumu Nonogaki(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Tomoaki Hori(Institute for Space-Earth Environmental Research, Nagoya University), Eizi TOYODA(Forecast Department, Japan Meteorological Agency), Junya Terazono(The University of Aizu), Mayumi Wakabayashi(Kiso-Jiban Consultants Co.,Ltd), Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University), Kazuo Ohtake(Japan Meteorological Agency), Chair:Mayumi Wakabayashi(Kiso-Jiban Consultants Co.,Ltd), Kazuo Ohtake(Japan Meteorological Agency)

11:45 AM - 12:00 PM

[MGI21-11] HpFP: A new protocol for LFNs with packet-loss based on UDP -A basic concept and detailed design of the protocol

*Takamichi Mizuhara1, Ayahiro Takaki1, Keisuke Fukushima1, Ken T. Murata2, Kazunori Yamamoto2, Yoshiaki Nagaya2, Kazuya Muranaga3, Eizen Kimura4 (1.CLEALINKTECHNOLOGY Co.,Ltd., 2.National Institute of Information and Communications Technology, 3.Systems Engineering Consultants Co., LTD., 4.Department of Medical Informatics Ehime Univ.)

For LFNs (Long-Fat Networks) with 10 Gbps or more and satellite networks with large latency, a variety of TCP-based protocols have been proposed which show high performance on large latency network conditions. However, such TCP protocols are essentially unable to archive large bandwidth on high latency networks accompanied with packet-losses that are inevitable on practical LFNs or satellite networks. To overcome this issue, we designed a new data transfer protocol on TCP/IP transport layer built on top of UDP: High-performance and Flexible Protocol (HpFP). It constantly monitors latency (RTT) and packet losses, and conducts rate control and retransmission control based on them to enable higher bandwidth data transfer than 10 Gbps even on packet-loss conditions over LFNs. The basic concepts are addressed and protocol design of the HpFP are discussed. An applications to tansfer many data files in small size (e.g., 1MB x 10000 files) with almost wire-rate bandwidth (10 Gbps) is also addressed.