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Transmitting Hierarchical Aggregation Information Using RTCP Protocol


Radim Burget, Dan Komosny, Milan Simek


Vol. 7  No. 11  pp. 44-48


The current state of the RFC 3550 RTP/RTCP standard is not optimal for large-scale streaming sessions employing source-specific multicast and is currently the subject of research in many research laboratories. The most promising optimization for the RTP/RTCP protocol seems to be hierarchical aggregation [2], [3], [5], [6], [10], [11]. However, hierarchical aggregation has not yet completely solved the problem of hierarchical structure organization. The answer can be a Tree Transmission Protocol (TTP), which seems to be flexible and powerful but quite demanding to implement. This text deals with a different approach that tries to maximally utilize the features of current standards.


RTCP, Hierarchical aggregation, Sub-report Block, Receiver Summary Information