High Quality Content by WIKIPEDIA articles! The explicit multi-unicast (Xcast) is a variation of multicast that supports a great number of little multicast sessions. It is done by adding all the IP addresses in the destination field of the IP header, instead of using a multicast address. The traditional multicast schemes over IP are scalable for big multicast groups, but they have got scalability problems for a great number of groups. The multicast schemes can be used to minimize the bandwidth consumption. Xcast can be used to minimize the bandwidth consumption for little groups, but the great advantage is that it eliminates the signalization and the state information for every session of a traditional multicast scheme. Thanks to this it is capable to support a great number of little sessions. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по...

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