中文摘要：

P2P流量的迅猛增长加剧了网络拥塞状况,P2P流量识别为网络管理提供了基本的技术支持.首先介绍了P2P流量的类别及流量识别面临的主要困难,然后综述了P2P流量识别的主要技术及研究进展,最后给出下一步的主要研究方向.

英文摘要：

The rapid increase of P2P traffic worsens the congestion of network while P2P traffic identification becomes the basic technical support for network management.The types of P2P traffic and main challenges of traffic identification are introduced first.Next,the main techniques and research progresses of P2P traffic identification are summarized.Finally,the future trend is put forward.