Adaptive per-flow traffic engineering based on probe packet measurements

S. Krasser, H. Owen, J. Sokol, Hans-Peter Huth, J. Grimminger
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引用次数: 3

Abstract

In this research, we propose a new connection admission control and online traffic engineering framework. The framework is designed to fit small networks using differentiated services, e.g. radio access networks. Decisions are made at the edge routers of the network. Multiple disjoint label switched paths are pre-configured between each pair of edge routers (ERs). Between each pair of ERs, probe packets are sent on every path between those ERs and for every class of service. The characteristics of the transmission are measured at the ER at the end of the path, the egress ER. It sends the results back in feedback packets to the ingress ER at the beginning of the path. Additionally, low priority probe packets are sent at high rates to discover and reserve available bandwidth. The achieved throughput of those probes is also reported in feedback packets. Based on the results in these feedback packets, ERs render an admission decision for new connection requests and pick a path.
基于探测包测量的自适应逐流流量工程
在这项研究中,我们提出了一个新的连接准入控制和在线流量工程框架。该框架旨在适应使用差异化服务的小型网络,例如无线接入网。决策是在网络的边缘路由器上做出的。在每对边缘路由器(er)之间预先配置多条不相交的标签交换路径。在每一对er之间,探测包在这些er之间的每条路径上以及针对每一类服务发送。传输的特性是在路径的末端,即出口电阻值处测量的。它将结果以反馈包的形式发送回路径开始处的入口ER。此外,低优先级的探测报文以高速率发送,以发现和预留可用带宽。这些探针的实现吞吐量也在反馈数据包中报告。基于这些反馈包的结果,er对新的连接请求做出接纳决定并选择一条路径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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