基于SDN技术的异构链路数据流调度的研究.doc

文档介绍：
基于 SDN 技术的异构链路数据流调度的研
究
郑广杰,唐碧华**
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(北京邮电大学电子工程学院,北京 100876)
摘要:在空间通信应用场景下,异构网络中的设备、带宽等资源都是有限的,不同类型的应
用对于网络功能和性能的要求各异。在这些资源有限的前提下,如何能够最大程度的利用这
些资源来满足不同类型的应用对于网络功能和性能的要求成为了一个非常重要的研究内容。
而作为底层设备要尽可能做到灵活的控制数据流,从而能够支持上层软件算法对于数据流的
灵活处理。本论文首先介绍了软件定义网络,然后分析了 SDN 应用于异构网络通信需要解
决的问题,最后提出了一种可行的解决方案。
关键词:通信与信息系统;软件定义网络;异构链路;数据交换
中图分类号:
The Research on Heterogeneous Link Data Stream
Scheduling Based on SDN
Zheng Guangjie, Tang Bihua
(School of Electronic Engineering,Beijing University of Posts and munications,Beijing
100876)
Abstract: In the munication scenarios, the resources such as devices and bandwidth in
work are limited. work performance requirements for different types of
applications are not the same. Considering the limited resources, how to make better use of these
resources to meet the needs of different types of applications has e a very important research
content. The underlying equipment should have the ability to control data flow flexibly to support the
software algorithm for flexible data stream processing. Firstly this paper introduces SDN. Then it
analyzes the problems of the application of SDN and finally put forward a feasible solution.
Key words: Communication and Information Systems; SDN; Heterogeneous Link; Data Switch
0 引言
SDN(Software working,软件定义网络)是一种新兴的基于软件的网络架构及
技术,其最大的特点在于将数据平面与控制平面分离,集中控制网络流量。在