随着网络规模的增大，组播组多对多的通信，都对可靠组播提出了新的需求和挑战。
With the increasements of the network and communication of many-to-many, it puts new demands and challenges for reliable multicast.
传统的IP多播方案是为一对多，多对多的通信模型而设计的。
The traditional IP multicast architecture was proposed for these communication models.
当前的量子通信协议和密钥分配系统，大多是基于点对点、一对一的单行系统，而现实中的通信网络是一对多、多对多的复杂系统。
The QKD protocols and the available QKD system are mostly based on the point-to-point, or one-to-one network, while the real communication needs one to many, many-to-many network.
当前的量子通信协议和密钥分配系统，大多是基于点对点、一对一的单行系统，而现实中的通信网络是一对多、多对多的复杂系统。
The QKD protocols and the available QKD system are mostly based on the point-to-point, or one-to-one network, while the real communication needs one to many, many-to-many network.
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