用户仅仅需要指定一些成员作为冗余的路由主机，他们可以作为软件路由器将信息路由到其他组成员。
One simply specifies a set of members as redundant routing hosts which then act as software routers to route traffic to all group members.
如果你想要提高可靠性，你就增加更多的路由器和冗余线路。
If you want reliability, you add more routes or more redundancy.
分布式处理可以有效解决路由器的性能瓶颈，同时其冗余特性对于提高系统的可靠性具有重要意义。
Distributed processing can solve the performance bottleneck of backbone routers and the redundancy attribute will improve the reliability of the system.
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