M-ICT时代随选网络架构与实施策略

[摘要] 随选网络包括连接随选和功能随选。连接随选主要是通过软件定义网络（SDN）技术实现网络资源的按需调度，有点到点、点到数据中心（DC）、点到互联网等3种应用场景，网络需要支持带宽按需保证、服务质量保证及虚拟专用网络等。功能随选是指网络功能的自动化配置，通过网络功能虚拟化（NFV）技术来实现。最终用户在终端上可灵活按需订制整个网络，获得极致业务体验，真正实现“所见即所得”。

[关键词] 随选网络；连接随选；功能随选；软件定义网络；网络功能虚拟化；网络重构

[Abstract] The network on demand refers to connection on demand and function on demand. The connection on demand uses software defined networks (SDNs) to implement on-demand network resource scheduling and three application scenarios, including point-to-point, point-to-data center (DC) and point-to-internet scenarios. The network should offer on-demand bandwidth, guaranteed service quality and virtual private networks. The function on demand service allows the user to implement automated network service configuration via network function virtualization (NFV). Terminal users can customize the entire network on the terminal flexibly to get extreme service experience and to realize “what you see is what you get”.

[Keywords] network on demand; connection on demand; function on demand; SDN; NFV; network reconfiguration