This paper explores the technology behind Multicast ABR and its potential to improve how video content is streamed over IP, meeting the network operator’s needs for a scalable way to deliver growing video traffic and end-users’ demands for the best possible streaming experience.
A one-to-many network traffic distribution mechanism. Multicast stands in contrast to unicast (one-to-one) network traffic transactions. Broadcast (one-to-all) is the other traffic delivery scheme which is only used and feasible in very limited settings. Multicast has been mainly used with the traditional live broadcast type of delivery.
Technology which permits to multicast media objects that are common in HTTP-based streaming protocols. In one instantiation, it is composed of two components: one server to create a multicast feed from the HTTP unicast (with the several quality layers) and one client able to transform back the multicast to an
User Datagram Protocol (UDP) is one of the main transport protocols used in IP networks. It corresponds to Layer 4 in the OSI 7-layer model of the networking stack. It is a “stateless” or “connectionless” protocol which means that features such as retransmission and flow control, if desired, must be
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