Overlay网络是通过网络虚拟化技术，在同一张Underlay网络上构建出的一张或者多张虚拟的逻辑网络。 不同的Overlay网络虽然共享Underlay网络中的设备和线路，但是Overlay网络中的业务与Underlay网络中的物理组网和互联技术相互解耦。 Overlay网络的多实例化，既可以服务 ...

The time has come for you to install new carpet in your home. While you are excited about the prospect of new flooring that ...

As the UK’s only vertically integrated construction membrane manufacturer, Don & Low has developed a comprehensive roofing ...