不管你选择软件即服务、平台即服务还是基础架构即服务，有一件事是不可避免的：你需要良好的、可靠的网络连接到云。 网络很可能成为一个障碍，因为云大大改变了网络的作用 - 以及与之配套的硬件和软件。云计算真正的致命弱点是：许多IT人员没有考虑到，建立可靠的网络所带来的更深层次的挑战，只有迁移工作完成之后，他们才会发现网络问题。
成功的公共云计划主要依赖于网络基础设施，而且，毫无疑问的是：IT经理也需要考虑需要多少带宽？网络的可靠性跟预想的一样吗？ 未来五年需要什么样的网络？ 这些问题是迁移到云——尤其是基础设施即服务 （IaaS）以及平台即服务 （PaaS）的典型公司需要回答的(Whether you choose software as a service, platform as a service or infrastructure as a service, one thing is inevitable: you need a good and reliable network connection to the cloud. The network is likely to become an obstacle, because the cloud has greatly changed the role of the network - and the hardware and software that is matched with it. The real Achilles' heel of cloud computing is that many IT staff fail to take account of the deeper challenges of building reliable networks. Only when migration is completed, will they find network problems.
Successful public cloud plans rely mainly on network infrastructure, and there is no doubt that IT managers need to consider how much bandwidth is needed. Is the network as reliable as expected? What kind of network will be needed in the next five years? These problems are the answers to the typical companies that migrate to the cloud, especially the infrastructure services (IaaS), and the platform service (PaaS).)