Research and design based on path switching strategy of extended LDP protocol
首发时间:2019-01-17
Abstract:Label diversion protocol (LDP) is a signal controlling protocol based on the multiple protocol label exchanging system. How to perform path switching is a key issue in the extended LDP protocol(includes p2mp-ldp and mp2mp-ldp). In the case of route flapping, Path switching may cause unnecessary waste of resources. The resource loss rate can be used as an important indicator in many network protocols.Therefore, this paper firstly uses the extended LDP protocol to perform path switching scenarios on route flapping, then abstracts the path switching strategy into a generic modell, exploring the resource loss rate caused by the path switching strategy on the general model.Then,A delay switching strategy is proposed on the general model to prove the feasibility of the delay switching strategy by reducing the resource loss rate. At last, this paper compare normal switching and delayed switching strategies, prove the practicability of the technology through the application on the quagga platform. The delay switching strategy presented in this paper is not only applicable to the LDP protocol, but also to other complex network protocols.
keywords: computer network resource wasting delayed switching
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基于扩展标签分发协议路径切换策略的研究与设计
摘要:标签分发协议(LDP)是基于多标签交换协议的信令控制协议,而路径切换是标签分发协议中的重点问题。在路由震荡的情况下,路径切换可能导致不重要的资源浪费。资源消耗率是在许多网络协议中都是重要的指标。应此,本文先详细了扩展的LDP协议的相关场景,并抽象为一种更为通用的模型,探索该通用模型下的资源损耗率。接着,提出延时切换策略并来证明该策略能降低资源损耗率。在最后,文章比较了普通切换策略和延时切换策略并在quagga平台下证明了策略的实用性。延时切换策略不仅适用于LDP协议,也适用于其他复杂网络协议。
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