PEMS是面向ISP网络的diffserver感知MPLS流量工程模型

A. Toguyéni
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引用次数: 6

摘要

本文提出了一个新的模型,以确保每个应用程序都有更好的服务质量(QoS)。提出的模型称为周期多步路由模型(PEMS)。它是基于MPLS的流量工程与Diffserv提出的基于类的流量区分相结合而构建的。实际上,许多优化QoS路由的模型使用单个特定度量,因为在成本函数中混合多个度量是np完全的。因此,这里的想法是提出一个根据需求处理每个流的模型。在本研究中,我们通过仿真器MNS对PEMS和LBWDP进行了比较。我们表明,如果PEMS区分流,它在没有过载的网络中并不比LBWDP具有最好的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PEMS a DiffServ Aware MPLS Traffic Engineering Model for the Networks of ISP
This article proposes a new model to ensure for each application a better quality of service (QoS). The proposed model is called PEriodic Multi-Step Routing model or PEMS. It is built by integration of traffic engineering based on MPLS and differentiation of traffic depending on the class as proposed by Diffserv. Indeed, many models for optimizing QoS routing use a single specific metric because mixing multiple metric in a cost function is NP-complete. Consequently, the idea here is to propose a model that treats each flow according to its needs. In this study we compare PEMS with LBWDP through simulations based on the simulator MNS. We show that if PEMS differentiates the flows, it does not have best performance than LBWDP in a network that is not overloaded.
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