如图1所示，外部客户机向单个ip地址发送通信量，而该IP地址可能存在于某个LVS控制器机器上。

As shown in Figure 1, the external clients send traffic to a single IP address, which may exist on any of the LVS director machines.

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例如，可能希望进一步控制虚拟机到物理机器的映射，或者希望更确定地把IP地址分配给虚拟机。

For instance, you might want more control over the mapping of virtual machines to physical machines, or you might want to be deterministic about the assignment of IP addresses to virtual machines.

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为了从客户机调用服务，在Vista机器上打开一个命令控制台并使用客户机命令，作为参数提供WebSphere ESB服务网关的地址。

To invoke the service from the client open a command console on the Vista machine and use the client command, providing the address of the WebSphere ESB service gateway as a parameter.

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