摘 要：为了提高网络管理的效率，提出了基于网络功能虚拟化技术的网络流量监控系统。系统通过提供路由功能来替代传统的网络层硬件设备，在网络命名空间中设计了过滤器来实现实时网络流量统计。实现了一个虚拟交换机，并使用 OpenFlow建立了流量监控系统来管理网络。实验结果表明，所提出的系统以较低的成本实现了与传统硬件网络相似的性能。
关键词：网络功能虚拟化；软件定义网络；流量监控系统
DOI:10.19850/j.cnki.2096-4706.2022.08.005
中图分类号：TP391 文献标识码：A 文章编号：2096-4706（2022）08-0019-03
Design of Flow Monitoring System Based on Network Function Virtualization
LIU Hongmei
(Chengdu College of University of Electronic Science and Technology of China, Chengdu 611731, China)
Abstract: In order to improve the efficiency of network management, this paper proposes a network flow monitoring system based on network function virtualization technology. The system replaces traditional network layer hardware devices by providing the routing function, and designs filters in the network namespace to achieve real-time network flow statistics. This paper implements a virtual switch and builds a flow monitoring system by using OpenFlow to manage the network. Experimental results show that the proposed system achieves similar performance to traditional hardware networks at a lower cost.
Keywords: network function virtualization; Software Defined Network; flow monitoring system
参考文献：
[1] 王进文，张晓丽，李琦，等 . 网络功能虚拟化技术研究进展 [J]. 计算机学报，2019，42（2）：185-206.
[2] CHEN X，NI W，COLLINGS I B，et al. Automated function placement and online optimization of network functions virtualization [J]. IEEE Transactions on Communications，2019，67（2）：1225-1237.
[3] LEE K，HONG C H，HWANG J，et al. Dynamic network scheduling for virtual routers [J]. IEEE Systems Journal，2019，14（3）：3618-3629.
[4] LV Z，XIU W. Interaction of edge-cloud computing based on SDN and NFV for next generation IoT [J].IEEE Internet of Things Journal，2019，7（7）：5706-5712.
[5] KEMP C，CALVERT C，KHOSHGOFTAAR T. Utilizing netflow data to detect slow read attacks [C]//2018 IEEE International Conference on Information Reuse and Integration（IRI）.Salt Lake City：IEEE，2018：108-116.
作者简介：刘红梅（1986—），女，汉族，四川绵阳人，副教授，硕士，研究方向：计算机网络、计算机图形学。