A Dynamic Path-Computation Algorithm for a GMPLS-Enabled Multi-Layer Network

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With the appearance of new emerging IP packet-based services (e.g., high-definition IPTV, video-conferences, etc.) and applications with various bandwidth and Quality of Service (QoS) requirements, it is necessary to improve the current transport networks so that they can provide higher capacity, reliability and QoS in a cost-efficient manner. Wavelength-Switched Optical Networks (WSONs) are one of the most efficient ways to cope with such a demand. By deploying the Wavelength-Division Multiplexing (WDM) technology in these transport networks, multiple optical channels are multiplexed within a single optical fiber, thus increasing the total transport capacity.