SDN控制平面可拓展接口协议研究及其应用

发布时间：2018-05-16 16:43

本文选题：SDN + 控制平面　；参考：《北京邮电大学》2017年硕士论文

【摘要】：随着软件定义网络(SDN)的发展,SDN逐渐被应用在许多网络场景,网络规模也越来越大。随着SDN网络规模的扩大,控制平面可拓展性不足的问题成为制约网络规模增大的主要原因。目前解决SDN网络可拓展性不足问题主要有部署分布式控制器集群和采用控制器东西向协议两种解决方案。然而分布式集群的私有接口设计导致不同控制器间无法协同工作,而现有SDN东西向接口协议不够高效,无法应用在链路资源有限的网络环境中,比如移动自组织网络环境。为解决上述问题,本文提出了高效、多模式、支持异构控制器协同工作的SDN控制平面可拓展协议:Open eXchange Protocol(OXP)。通过网络抽象机制,OXP大量压缩了网络同步数据量。此外,OXP还提供了简单、高级、压缩和普通等多种模式,从而满足多种网络场景的需求。其中压缩模式专门为Ad Hoc等链路资源有限的网络环境设计,可显著降低通信开销,实现高效信息同步。
[Abstract]:With the development of software defined network (SDN), SDN is gradually used in many network scenarios, and the network scale is becoming larger and larger. With the expansion of SDN network scale, the problem of lack of expansibility of control plane becomes the main reason to restrict the network scale. At present, there are two main solutions to solve the problem of scalability of SDN network: deploying distributed controller cluster and adopting east-west protocol. However, the private interface design of distributed cluster leads to the inability to work together among different controllers, and the existing SDN East-West interface protocol is not efficient enough to be applied in the network environment with limited link resources, such as mobile ad hoc network environment. In order to solve the above problems, this paper proposes a new SDN control plane extensible protocol: open eXchange protocol, which is efficient, multi-mode and supports the cooperative work of heterogeneous controllers. Through the network abstraction mechanism, OXP compresses the data amount of network synchronization. OXP also provides a variety of simple, advanced, compressed and common modes to meet the needs of a variety of network scenarios. The compression mode is specially designed for the network environment with limited link resources, such as Ad Hoc, which can significantly reduce the communication overhead and achieve efficient information synchronization.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.02

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