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title: Destination
目标服务 (destination) 是 [envoy](/zh/docs/reference/glossary/#envoy) 代表一个[源服务](/zh/docs/reference/glossary/#source) [工作负载](/zh/docs/reference/glossary/#workload)与之打交道的远程上游服务。这些上游服务可以有多个[服务版本](/zh/docs/reference/glossary/#service)，envoy 根据路由选择对应的版本。