随着IP网络和通信技术的飞速发展,基于IP包交换的各类应用得到了广泛的发展,业界甚至提出了“Ev-erythingOverIP”的概念。与传统的电路交换方式相比,IP网络的“一网多用”“一网多能”是传统的“专网专用、功能单一”所不能比拟的。就目前水利行业的实际需求而言,除最基本的数 With the rapid development of IP network and communication technology, various applications based on IP packet exchange have been widely developed. The industry even proposed the concept of “Ev-erything Over IP”. Compared with the traditional circuit switching methods, IP network “a network of multiple” “a network of more than” is the traditional “private network dedicated, single function” can not be compared. In terms of the actual demand of the water conservancy sector, in addition to the most basic number