1.vpc是地域级的，创建的时候需要指定ip段。2.交换机是可用区级的，需要在某个vpc下，ip段地址是该vpc的子集。3.创建ecs实例时需要指定vpc和交换机，此时ecs就拥有了一个内网ip。4.安全组是ecs的虚拟防火墙，在专有网络中，如果同一vpc下的一些实例需要互通，可以划到一个安全组中。安全组可以跨可用区。

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更新时间 2024-08-13 10:13:25

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