之前用的都是经典网络，但是有次提醒一台经典网络ECS需要升级到专业网络，但是发现升级之后专业网络和经典网络之间的不是同一个局域网，导致部分应用存在问题。 1）通过搜索发现，专业网络几乎不能转回经典网络； 2）然后想退订该专业网服务器ECS，发现又不能退订“预付费转按量付费”，如下图，请问还有什么方案？

文章 2016-07-29 来自：开发者社区

阿里云网络系列之经典网络和专有网络

阿里云面向客户提供的网络类型服务有经典网络和专有网络两种，但这两者有什么区别呢？阿里官网给的解释是：经典网络：IP地址由阿里云统一分配，配置简便，使用方便，适合对操作易用性要求比较高、需要快速使用 ECS 的用户。专有网络：是指逻辑隔离的私有网络，您可以自定义网络拓扑和 IP 地址，支持通过专线连接。适合于熟悉网络管理的用户相信很多人看了这个解释还是云里雾里，作为用户你该如何判...

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