基于混合P2P的端到端网络测量系统

基于P2P的网络测量系统以降低单点瓶颈和部署开销为目标，其中结构化P2P一般假设节点具有相同的能力，不适合大规模部署；非结构化P2P通信负载过大，可扩展性差.因此，本文结合多种P2P模式的优点，引入分层思想，对节点按能力分簇，选取性能佳的作为簇首组成上层高速转发网，由簇首负责维护和管理簇内普通节点，同时描述了系统的初始化构建过程、各个功能模块、自适应维护机制等，并实现了一个系统原型.实验结果表明，该系统实现了节点的自动化部署，同时提高了系统的可扩展性，降低了测量开销.

Network Measurement System Based on Hybrid P2P

The goal of network measurement system based on P2P is to reduce the single-point bottleneck and deployment costs. Generally, assumed to have the same capacity among the nodes, the structured P2P is unsuitable for large-scale deployment. The unstructured P2P communication is overload and its expandability is poor. Therefore, combing with the adavantages of various P2P modes, the thesis brings in layered thought, clustering of the nodes in accordance with ability, which is the heads of a cluster selected from the excellent ones form the upper high-speed transmitting net, and take control of the maintenance and management of the common nodes in the clusters. The thesis also describes the initialized establishment process of the system, function modules and self-adaption maintenance mechanism and so on. Ultimately, system prototype is taken shape. The experiment suggests that not only is the automatic deployment of the node realized, but also the expandability of the system is improved, which reduces the measurement costs.