Cloud computing is transforming networking landscape over the last few years. The first order of business for major cloud providers today is to attract as many organizations as possible to their own clouds. To that end cloud providers offer a new generation of managed network solutions to connect the premises of the enterprises to their clouds. To serve their customers better and to innovate fast, major cloud providers are currently on the route to building their own "private Internets", which are idiosyncratic. On the other hand, customers that do not want to stay locked by vendors and who want flexibility in using best-for-the-task services spanning multiple clouds and, possibly, their own premises, seek for solutions that will provide smart overlay connectivity across clouds.

The result of these developments is a multiplication of closed idiosyncratic solutions rather than an open standardized ecosystem. In this editorial note we argue for desirability of such an ecosystem, outline the main requirements and sketch possible solutions. We focus on enterprise as our primary use case and illustrate the main ideas through it, but the same principles apply to various different use cases.

在过去的几年里，云计算正在改变网络格局。今天，主要云提供商的首要任务是吸引尽可能多的组织使用他们自己的云。为此，云提供商提供了新一代的托管网络解决方案，以将企业的场所连接到他们的云。为了更好地为客户服务并快速创新，主要的云提供商目前正在构建自己的“私有互联网”，这些都是特殊的。另一方面，不希望被供应商锁定并且希望灵活地使用跨多个云（可能还有他们自己的场所）的最适合任务的服务的客户寻求能够提供跨云的智能覆盖连接的解决方案云。

这些发展的结果是封闭的特殊解决方案的倍增，而不是开放的标准化生态系统。在这篇社论中，我们主张这样一个生态系统的可取性，概述主要要求并勾勒出可能的解决方案。我们将企业作为我们的主要用例，并通过它说明主要思想，但相同的原则适用于各种不同的用例。