Polymorphic Architectures for Optical Networks and their Seamless Evolution towards Next Generation Networks

Ignacio de Miguel, Juan Carlos González, Ton Koonen, Ramón Durán, Patricia Fernández, Idelfonso Tafur Monroy

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper proposes a novel polymorphic framework for optical networking and a seamless evolution path from optical circuit-switched towards optical packet-switched networks. We show that by simultaneously supporting several optical switching paradigms in a single physical topology, efficient and flexible optical networks can be built. The supported paradigms are associated with different Classes of Service (CoS) in order to provide service differentiation at the optical layer. Two polymorphic architectures are presented, one based on optical circuit switching paradigms with different grades of dynamism, and a second one based on optical labeled burst-switched networks with the added capability of dynamic lightpath provisioning. These architectures provide a seamless evolution path towards an efficient IP-over-WDM approach with service differentiation. Moreover, the proposed polymorphic architectures are fully compatible with the GMPLS unified control plane. We present in a detailed form the proposed polymorphic framework, including the selection of switching paradigms, its support for CoS, the network and control architecture, and a possible seamless evolution towards optical packet-switched networks. Possible implementation examples of optical network nodes that support the proposed polymorphic architectures are also presented.
Original languageEnglish
JournalPhotonic Network Communications
Volume8
Issue number2
Pages (from-to)177-189
ISSN1387-974X
DOIs
Publication statusPublished - 2004
Externally publishedYes

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