路由是启用服务虚拟化的关键功能。

Routing is a key function to enable service virtualization.

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从最基本的级别来看，启用该基础架构涉及到规划功能来将服务请求路由和传递给正确的服务提供者。

Enabling the infrastructure, at the most basic level, involves provision of the capabilities to route and deliver service requests to the correct service provider.

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多点广播的接收方可能很多，为了有效地进行传输，路由器要构造一个连接IP多点广播组所有成员的树，采用多点广播路由选择协议并启用多点广播数据包转发功能。

Since multicast may have many receivers, for effective transmission, the router needs a tree to join multiple IP members, with Multicast RIP and its data packet forwarding function.

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