Abstract
The absolute Quality of Service (QoS)model in Optical Burst Switching (OBS)aims to give worst-case quantitative loss guaratees to traffic classes. For example, if a traffic class is guaranteed to experience no more than 0.1% loss rate per hop, the loss rate of 0.1% is referred to as the absolute threshold of that class. This kind of QoS guarantee calls for different QoS differentiation mechanisms than those intended for the relative QoS model in the previous chapter. A common characteristic of these absolute QoS mechanisms is that they differentiate traffic based on the classes’ absolute thresholds instead of their relative priorities. That is, traffic of a class will get increasingly favourable treatment as its loss rate gets closer to the predefined threshold. In this way, the absolute thresholds of the classes will be preserved.
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(2007). Absolute QoS Differentiation. In: Quality of Service in Optical Burst Switched Networks. Optical Networks. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-47647-6_4
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DOI: https://doi.org/10.1007/978-0-387-47647-6_4
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