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Centralized Scheme for the Provisioning Control in the Synchronous Optical Transport Network  

Kang Dongwoo (성균관대학교 정보통신공학부 차세대네트워크 연구실)
Kim Dalwon (성균관대학교 정보통신공학부 차세대네트워크 연구실)
Cho Kyuseob (성균관대학교 정보통신공학부 차세대네트워크 연구실)
Yae Byungho (한국전자통신연구원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.11B, 2005 , pp. 707-721 More about this Journal
Abstract
Recently, there has been a dramatic increase in data traffic, driven primarily by the explosive growth of the Internet. Optical networking is believed as a key solution to keep up with the growth, thus, the most pressing issue is how to manage and control large optical networks. Currently, provisioning end-to-end connections across the transport network has involved the network operator, leading to long provisioning times in an era when customers are demanding shorter provisioning time. To address this critical issue, new control intelligence is being studied for use within optical networks to shorten provisioning time. Both the IETF and the ITU-T have been aggressively defining many aspects of a control plane for the next generation convergence transport network. Basically, they are based on the distributed control scheme. In this Paper, we suey the applicability of the centralized control scheme for the provisioning control of optical transport network to utilize its inherent advantages over the distributed control scheme. We discuss new central control architecture, and control procedure. Also, we examine the applicability of the existing IETF routing and signaling protocols to the new control concepts, and then, we propose the additional routing and signaling information elements.
Keywords
ASON; optical transport network; centralized control; routing protocol; signaling protocol;
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