光突发交换宽带多业务接入技术探索

Broadband Multiservice Access Technology Based on Optical Burst Switching

文章探索了一种以低廉价格实现多业务高速接入的光突发交换(OBS)接入网方案,方案采用OBS技术实现多业务传送平台。文章介绍了该方案的网络架构、边缘节点和核心节点的结构,以及基于多协议标签交换(MPLS)的控制平面和数据平面的软件架构;重点研究了一种在边缘节点处权衡带宽利用率和实时业务延时要求的业务分类和调度机制,利用该机制可以实现满足不同业务要求的多业务高速接入,并可根据实时性业务低延时的要求来合理地分类和设置最大等待时间。

This paper goes into a low-cost, high-speed multiservice access platform based on optical burst switching technology. The network topology and the edge node and core node architectures are presented. The software architecture for control plane and data plane based on Multiple Protocol Labeled Switching is discussed. Service classification and scheduling that takes both the bandwidth efficiency and the real-time service delay into consideration are studied in detail. Such platform enables high-speed multiservice access for different service requirements, and rightly decides the waiting time to ensure short time delay for real-time services.