Abstract:

Nowadays,IP group communication model possesses high performance as well as high implementation complexity, and low imple-! mentation complexity together with low performance as for application layer group communication model, neither of which satisfying the large scale multicasting demand causing by broadband businesses.This paper breaks up the traditional concept that the design for group communication model should be based on single layer,and proposes to configure IP group communication model combined with application layer group communication model according to the partition of inter-domain and intra-domain of the whole network, referred as multilayer-union group communication model. Our proposal not only inherits all the merits of existing schemes of group communication model, but also improves on their drawbacks, and innovates a completely new approach for the development of group communication model in the next generation network.

Key words: NGN, multicast, monolayer, multilayer-union, group, communication model