Control plane latency reduction for service chaining in mobile edge computing system

Chi-Hsiang Hung, Yao-Chou Hsieh, Li-Chun Wang
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引用次数: 4

Abstract

Software-Defined Networking and Network Function Virtualization technologies are utilized to construct service chains cheaply and elastically. In Mobile Edge Computing platform, cloud servers can be deployed near to base stations. Migrating service functions of service chains to edge can reduce network latency or save unnecessary bandwidth consumption between edge and cloud datacenter. However, the control plane latency of SDN/NFV Mobile Edge Computing Platform is subject to the scalability of flow table in SDN switches due to flow table overflow problem. In this paper, we proposed Hash-based Group Management scheme to reduce the number of maintained flow entries by assigning users into groups and design a hash-based structure to efficiently maintain the group information. In our simulation results, the proposed scheme can reduce the number of maintain flow entries and table overflow ratio to improve the control plane latency.
移动边缘计算系统中服务链控制平面时延降低
利用软件定义网络和网络功能虚拟化技术,构建了低成本、弹性的服务链。在移动边缘计算平台中,云服务器可以部署在基站附近。将业务链上的业务功能迁移到边缘,可以降低网络时延或节省边缘与云数据中心之间不必要的带宽消耗。但是,SDN/NFV移动边缘计算平台的控制平面时延由于流表溢出问题而受到SDN交换机中流表可扩展性的限制。在本文中,我们提出了基于哈希的组管理方案,通过将用户分配到组中来减少维护流条目的数量,并设计了基于哈希的结构来有效地维护组信息。仿真结果表明,该方案可以减少维护流表项数和表溢出率,从而提高控制平面延迟。
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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