Abstract
Conventional approaches to designing one signaling protocol for each
type of traffic will not be scalable, economical and efficient when new applications
emerge, each with significantly different traffic characteristics and service
requirements. As a partial answer to the call for an converged control and
management framework for future optical networks, this paper presents a new
network called PATON, which uses a unified signaling, switching and reservation
framework, called Polymorphous Optical Burst Switching (POBS). POBS can seamlessly
support various types of services, including but not limited to wavelength
services, sub-wavelength circuit services and best-effort services with or
without scheduled reservation. An overview of the proposed signaling framework
is presented before implementation challenges and main features of PATON are
discussed. Finally, the advantage of POBS over three representative optical
circuit switching approaches is shown through both qualitative and quantitative
studies.
© 2009 IEEE
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