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Multicast lightpaths : ウィキペディア英語版 | Multicast lightpaths
A multicast session requires a “point-to-multipoint” connection from a source node to multiple destination nodes.〔L. H. Sahasrabuddhe and B. Mukherjee, “Light-trees: Optical multi-casting for improved performance in wavelength-routed networks,” IEEE Commun. Mag., vol. 37, pp. 67–73, Feb. 1999.〕 The source node is known as the root. The destination nodes are known as leaves. In the modern era, it is important to protect multicast connections in an optical mesh network. Recently, multicast applications have gained popularity as they are important to protecting critical sessions against failures such as fiber cuts, hardware faults, and natural disasters. == Multicast applications == Multicast applications include multimedia, medical imaging, digital audio, HDTV, video conferencing, interactive distance learning, and distributed games.
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