基于PNS搜索机制的IP电话模型

IP telephone model based on peer name service's search mechanism

计算机对等网(peer-to-peer,P2P)是目前流行于国际网络技术研究领域的一种新兴网络模型。作为真正的分布式计算技术,P2P技术将对Internet的发展产生重要的影响。针对最近热门的基于P2P技术的搜索技术的迅速发展,为改善现有IP电话模型中的诸多不足之处,介绍了对等域名服务(peer name service,PNS)搜索机制及其特点;分析了PNS搜索机制设计的核心;提出了一种基于PNS搜索机制的IP电话模型,并详细讨论了该模型的信息模型和搜索策略。

The peer-to-peer computer network （P2P） is one kind of popular emerging network model at present in the intemational network engineering research domain. As the true distributed computing technologies, the P2P technologies will have the important in- fluence to the Intemet development. In view of recently is popular based on the P2P technologies search technologies＇ rapid development, for improvement existing IP telephone＇s model in many deficiency. Firstly, the PNS search mechanism and its the characteristic are in- troduced; Then the PNS search mechanism design core is analyzed; Finally one kind based on PNS the search mechanism in IP telephone＇s model is proposed, and this model information model and the search strategy are discussed.