Presentation 2017-03-02
Multi-layer optical transport systems capable of flexible accommodation of paths
Hiroshi Yamamoto, Aki Fukuda, Shohei Kamamura, Rie Hayashi, Yoshihiko Uematsu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) To mitigate the burden of maintaining carrier’s transport networks to keep the high availability, we proposed the technique to repair the failed resource using shared backup resource remotely. In this paper, we clarified requirements for multi-layer optical transport systems to implement the proposed technique, and then analyzed issues to adopt conventional systems. Conventional systems require a long period of time to make paths migrate from the failed resource to the shared backup resource due to the large number of operation. We propose an architecture of a multi-layer optical transport system capable of flexible accommodation of paths. In our proposed architecture, the logical resource, of which the correspondence to the physical resource is managed independent of paths, is introduced. The path migration is completed by updating the correspondence of the logical resource to the physical resource.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical Transport Network / System Architecture / Path Accommodation / Failure Recovery
Paper # NS2016-167
Date of Issue 2017-02-23 (NS)

Conference Information
Committee NS / IN
Conference Date 2017/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) OKINAWA ZANPAMISAKI ROYAL HOTEL
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.)
Vice Chair Yoshikatsu Okazaki(NTT) / Takuji Kishida(NTT)
Secretary Yoshikatsu Okazaki(Kyushu Inst. of Tech.) / Takuji Kishida(NTT)
Assistant Shohei Kamamura(NTT) / Kunitake Kaneko(Keio Univ.) / Takashi Natsume(NTT)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Multi-layer optical transport systems capable of flexible accommodation of paths
Sub Title (in English)
Keyword(1) Optical Transport Network
Keyword(2) System Architecture
Keyword(3) Path Accommodation
Keyword(4) Failure Recovery
1st Author's Name Hiroshi Yamamoto
1st Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
2nd Author's Name Aki Fukuda
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
3rd Author's Name Shohei Kamamura
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Rie Hayashi
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
5th Author's Name Yoshihiko Uematsu
5th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2017-03-02
Paper # NS2016-167
Volume (vol) vol.116
Number (no) NS-484
Page pp.pp.59-64(NS),
#Pages 6
Date of Issue 2017-02-23 (NS)