Destination-controlled routing with resource reservation

Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086) Pub Date : 2000-02-20 DOI:10.1109/PCCC.2000.830344

H. Hassanein, M. Al-Otaibi

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引用次数: 2

Abstract

This paper proposes a framework for routing and resource reservation in ATM networks, where call admission control (CAC), resource reservation and routing interweave together. A Forward-Routing and Backward-Setup process (FRBS) scheme is proposed. FRBS has two stages, a forward routing stage and a backward setup stage. During the forward stage, routing information on all paths from source to destination are forwarded through setup messages to the destination using a controlled flooding approach. Setup messages include CAC information on all links within the traversed path. The destination node collects information on all possible paths in its routing table. The destination then makes a selection of the path with the best cost value, and reservation is attempted along this path backwards towards the source. This represents the backward setup stage, which includes reserving resources along the selected path such that the CAC criteria are met. Various simulation experiments were conducted under different traffic characteristics and network parameters. Results indicate that the FRBS scheme possesses a number of performance advantages in terms of accuracy of routing decisions and call blocking probabilites.

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带资源预留的目的地控制路由

本文提出了一种ATM网络中的路由和资源预留框架，其中呼叫接纳控制、资源预留和路由相互交织。提出了一种向前路由和向后设置过程(FRBS)方案。FRBS有两个阶段，即正向路由阶段和反向设置阶段。在转发阶段，从源到目的地的所有路径上的路由信息通过设置消息转发到目的地，使用受控的泛洪方法。设置消息包括遍历路径中所有链接的CAC信息。目的节点收集路由表中所有可能路径的信息。然后，目的地选择具有最佳成本值的路径，并尝试沿着这条路径向后返回源。这表示向后设置阶段，其中包括沿所选路径保留资源，以满足CAC标准。在不同的流量特性和网络参数下进行了各种仿真实验。结果表明，FRBS方案在路由决策的准确性和呼叫阻塞概率方面具有一定的性能优势。

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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Conference Proceedings of the 2000 IEEE International Performance, Computing, and Communications Conference (Cat. No.00CH37086)

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