This paper introduces and evaluates a hybrid OBS/OCS switch for Quality of Service (QoS) differentiation in next-generation all-optical transport networks. Depending on their QoS requirements, incoming IP packets are collected in delay-sensitive or loss-sensitive assembly queues. Once assembled, those departing delay or losssensitive bursts are sent to the destination over a parallel all-optical hybrid network, where a set of switch ports
and wavelengths are dedicated to delay-sensitive OBS-like transmission based on Just Enough Time (JET), whereas the remainder are dedicated to loss-sensitive OCS-like transmission. The obtained results validate the differentiated transport services in the deployed reference network scenario. Moreover, they show that circuit
set-up retries are mandatory in OCS to carry loss-sensitive traffic efficiently.
CitationPerello, J. [et al.]. Performance evaluation of a hybrid OBS/OCS network with QoS differentiation based on packet loss/delay requirements. A: International Conference on Transparent Optical Networks. "Proceedings of ICTON 2010". Munich: 2010, p. 1-4.
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