基于网络层的核心路由器缓存容量分析

目前对路由器缓存容量的分析，忽略了网络元素间的相互作用。从网络层的角度．全面引入TCP链路上各路由器的作用，为TCP链路建立一种新模型。采用隔离方法对核心路由器部分进行分析．得出核心路由器一个接口的缓存容量需求下界值，表明目前的光缓存技术下可实现高性能全光核心路由器。仿真实验结果验证了结论的正确性。

Buffer Sizing for Core Routers from the Perspective of the Network Layer

Currently, buffer sizing for routers ignores the interaction of the network elements. From the perspective of the network layer, a new model, introducing the effects brought by each muter, is proposed for a TCP link. Analyzing the core reuters part with the separate method, a lower bound of required buffer size for an interface of a core muter is deduced, which indicates that high performance all-optical core routers are realizable with the current optical buffer technology. The simulation results validate our conclusion.