说明：  摘要：本文从总体上说明了仙桃教育“校校通”网络的需要，建设思想，设计原则，网络结构，技术方向和设备选择。
(Abstract : This article from the overall picture of the Xiantao education, "School-to-School" network needs, building and design principles, the network architecture and technology direction and choose equipment.)