不同组播拥塞控制协议的分析与比较

组播作为一种有效单对多、多对多的数据传输模式,其拥塞控制机制却仍未能达到有效与恰当的标准,这也成为了限制其广泛应用的一个瓶颈.本文介绍了组播拥塞控制的概念,提出了评价组播拥塞控制的标准,然后分析与比较几种IP组播拥塞控制协议的优缺点,以及应用层组播在解决拥塞控制上的优劣,对比了几种典型ALM协议的特点,并对ALM在解决拥塞控制方面提出了展望.

The Compare and Analysis of IP Multicast and ALM Congestion Control Protocol

As an efficient one-to-multi data transfering model, the congestion control of multicast haven't reach the standard of efficiency and propriety, which becomes the bottle-neck of its broad application. In this paper, the concept of multicast congestion control is introduced, several estimated goals of multicast congestion control are suggested, different protocol of IP multicast congestion control are analysed and compared. This paper also analyzes the advantage and disadvantage of applicational layer multicast congestion control and the characteristic of typical ALM protocal. The expectation of congestion control using ALM is suggested in the last part.