The problem of operation and maintenance (OAM) in optical burst switched (OBS) networks is not addressed by the optical-networking community even though OBS has been gaining research interest in recent years. In this paper, we introduce a functional model of OBS networks and an OAM architecture that is designed to meet the operational requirements based on this model. We present the first framework to realize OAM in OBS networks, including OAM activities, OAM-aware OBS nodes, OAM information and communication models and protocols. A number of practical examples of possible network failures and the corresponding reactions are presented.
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An assumption is made in this study that OAM/1 and supervisory packets may share the same channel. This is not mandatory and a channel may be dedicated to each of these two types of packets.
Saravut Charcranoon received the PhD in electrical engineering from State University of New York at Stony Brook in 1998. From 1998 to 2004, he worked as a research scientist on the control and management of IP networks as well as optical networks. Early in his career, he worked with the Communication Authority of Thailand for four years. He has been working with TRUE Corporation in Bangkok, Thailand since early 2004. His research interest includes control and management in IP/Optical networks and scheduling and OAM in Optical Burst Switched (OBS) networks.
Tarek S. El-Bawab has a PhD in Electrical Engineering from Colorado State University, M.Sc. in Telecommunications and Information Systems from University of Essex, and M.Sc. in Solid State Science from the American University in Cairo. He has been with the Network Strategy Group (NSG) of Alcatel USA since 2001. Prior to this assignment, he was in optical-networking research with Alcatel-USA Research & Innovation, Colorado State University, and University of Essex (UK). His areas of research interest include optical networks, network architectures, performance analysis, and next-generation switching/routing. He is an IEEE Senior Member and has served as TPC member, organizer, and chair in numerous IEEE/SPIE activities. He has more than 50 publications.
Jong-Dug Shin received the PhD degree in electrical engineering from Texas A&M University in 1991. From 1991 to 1995, he led research projects on optical packet switching networks at ETRI, Korea. Since 1995, he has been with the School of Electronic Engineering, Soongsil University, Korea, as Associate Professor. His current research interest includes OAM and QoS issues for optical networks.
Hakki C. Cankaya currently belongs to Network Technology and Analysis Team in Network Strategy Group at Alcatel USA. He has been working for Alcatel USA in several positions since 1998.
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Charcranoon, S., El-Bawab, T.S., Shin, JD. et al. Framework for Operation and Maintenance (OAM) in Optical Burst Switched Networks. J Netw Syst Manage 13, 387–408 (2005). https://doi.org/10.1007/s10922-005-9002-9
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DOI: https://doi.org/10.1007/s10922-005-9002-9