长庆通信处建设有长庆油田内部的宽带IP骨干网络，在网络内承载内数据、语音、视频等业务及其增值业务。随着中国互联网用户的快速发展，对上网速度要求高的用户也越来越高。特别是高清网络视频已经成为网民的重要应用之一，增长速度、覆盖范围不断提高。由于观看网络视频所需带宽的要求非常高，视频所面临的越来越多的用户，针对视频用户体验不佳所带来的问题，各大视频网站也都使用P2P加速软件，以充分占据管道提供的带宽资源。而在没有大量用户增长的情况下投入大量的资金，单纯的进行出口带宽的扩容以满足现有用户的需求，这又是运营商们不愿看到的。 本文针对以上问题，研究P2P技术对网络出口造成的影响，重点分析了网络缓存技术在出口进行部署的可行性，并就华为iCache缓存系统工作流程进行了认真分析，并详细描述了华为iCache系统部署、实施、测试过程。部署后总体提升了长庆宽带用户体验，有效增加了流量收益，使得更精细化的流量经营成为可能。测试效果表明，系统回吐的实际流量要等于大于预期回吐流量，基本实现了流量经营的目的，达到了预期效果。

Changqing communication broadband IP backbone network construction of Changqing Oilfield internal, load data, voice, video and other services within the network and value added service.With the rapid development of China's Internet users, high requirements on the speed of the Internet users are increasingly high. Especially high-definition network video has become one of the most important application of Internet users, the growth rate of coverage, improving. Due to watch online video required bandwidth requirements are very high, more and more video faced by users according to the video, poor user experience problems, the major video sites are also accelerate the use of P2P software, in order to fully occupy the pipeline to provide bandwidth resources. And spend a lot of money in the absence of a large number of user growth, the export bandwidth expansion to meet the needs of existing users, this is also the operators do not want to see. In this paper, in view of the above problems, the export situation of communication network as the object of study, effects of P2P technology on network caused by export, focuses on the analysis of the feasibility of Web caching technology deployment in the export, and it made a deep analysis on the work flow of HUAWEI iCache caching system, and a detailed description of the iCache system deployment, implementation and testing process. After the deployment of the overall improvement in the Changqing broadband user experience, increase the flow of income, so that more sophisticated traffic management possible. The main work and achievements are as follows: 1.This study analyzed the streaming media technology, P2P technology, and points out that the users demand for bandwidth and network operators lack of export traffic conflict cause. 2. Research and analysis of the Internet, the existing cache technology, the implementation of the contents of the cache technology is the best solution to solve the problem of shortage of outlet flow of network operators. 3.Two kinds of cache system for WebCache and P2PCache modes of operation and the realization of the principle of simple exposition, and the process is analyzed. 4.Tthe network flow is analyzed, analysis of the cache capacity demand and investment benefit, established the feasibility of deploying Huawei ICache caching system. 5, Design the cache system deployment with solutions, and the deployment of the implementation. To verify the test results, and some problems are analyzed and processed. And finally draws the conclusion: the actual flow taking to equal to or greater than expected back flow, the basic realization of the traffic management purposes, to achieve the desired effect.