Logical optical line terminal technologies towards flexible and highly reliable metro- and access-integrated networks

Satoru Okamoto, Takehiro Sato, Naoaki Yamanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

In this paper, flexible and highly reliable metro and access integrated networks with network virtualization and software defined networking technologies will be presented. Logical optical line terminal (L-OLT) technologies and active optical distribution networks (ODNs) are the key to introduce flexibility and high reliability into the metro and access integrated networks. In the Elastic Lambda Aggregation Network (E?AN) project which was started in 2012, a concept of the programmable optical line terminal (P-OLT) has been proposed. A role of the P-OLT is providing multiple network services that have different protocols and quality of service requirements by single OLT box. Accommodated services will be Internet access, mobile front-haul/back-haul, data-center access, and leased line. L-OLTs are configured within the P-OLT box to support the functions required for each network service. Multiple P-OLTs and programmable optical network units (P-ONUs) are connected by the active ODN. Optical access paths which have flexible capacity are set on the ODN to provide network services from L-OLT to logical ONUs (L-ONUs). The L-OLT to L-ONU path on the active ODN provides a logical connection. Therefore, introducing virtualization technologies becomes possible. One example is moving an L-OLT from one P-OLT to another P-OLT like a virtual machine. This movement is called L-OLT migration. The L-OLT migration provides flexible and reliable network functions such as energy saving by aggregating L-OLTs to a limited number of P-OLTs, and network wide optical access path restoration. Other L-OLT virtualization technologies and experimental results will be also discussed in the paper.

Original languageEnglish
Title of host publicationOptical Metro Networks and Short-Haul Systems IX
PublisherSPIE
Volume10129
ISBN (Electronic)9781510606999
DOIs
Publication statusPublished - 2017
EventOptical Metro Networks and Short-Haul Systems IX - San Francisco, United States
Duration: 2017 Jan 312017 Feb 2

Other

OtherOptical Metro Networks and Short-Haul Systems IX
CountryUnited States
CitySan Francisco
Period17/1/3117/2/2

Keywords

  • active optical distribution network
  • elastic lambda aggregation network
  • Logical optical line terminal
  • migration
  • optical access path
  • virtualization technologies

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Okamoto, S., Sato, T., & Yamanaka, N. (2017). Logical optical line terminal technologies towards flexible and highly reliable metro- and access-integrated networks. In Optical Metro Networks and Short-Haul Systems IX (Vol. 10129). [1012907] SPIE. https://doi.org/10.1117/12.2250693