[1]耿俊杰,颜金尧.基于可编程数据平面的 PFC 算法实现[J].计算机技术与发展,2021,31(01):116-121.[doi:10. 3969 / j. issn. 1673-629X. 2021. 01. 021]
　GENG Jun-jie,YAN Jin-yao.Implementation of Priority Flow Control Algorithm Based on Programmable Data Plane[J].,2021,31(01):116-121.[doi:10. 3969 / j. issn. 1673-629X. 2021. 01. 021]
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基于可编程数据平面的 PFC 算法实现()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
31
期数:
2021年01期
页码:
116-121
栏目:
网络与安全
出版日期:
2021-01-10

文章信息/Info

Title:
Implementation of Priority Flow Control Algorithm Based on Programmable Data Plane
文章编号:
1673-629X(2021)01-0116-06
作者:
耿俊杰; 颜金尧
中国传媒大学 信息与通信工程学院,北京 100024
Author(s):
GENG Jun-jie; YAN Jin-yao
School of Information and Communication Engineering,Communication University of China,Beijing 100024,China
关键词:
可编程数据平面; 数据中心; 无损传输; 高性能网络; 流量控制
Keywords:
programmable data plane; data center; lossless transmission; high performance network; flow control
分类号:
TP301. 6
DOI:
10. 3969 / j. issn. 1673-629X. 2021. 01. 021
摘要:
当前高吞吐量、超低延迟的高性能无损数据中心网络成为研究的热点。 传统 TCP / IP 协议是为广域网设计的,在高速网络条件下( 特别是随着 10 Gb/s 的网络接口的普及) 会存在 I / O 瓶颈问题;远程直接数据存取技术 RDMA( remotedirect memory access) 是为了解决网络传输中终端主机的数据处理延迟、降低 CPU 负载而产生的,最早应用在高性能计算领域。 RDMA 技术基于优先级流量控制 PFC 算法实现了无损传输网络。 首先,介绍了可编程数据平面技术和高性能数据中心网络的研究现状,并基于可编程数据平面以软件定义的方式实现了 PFC 算法,进而实现了可编程的无损数据中心网络,并在仿真网络环境下对实现的 PFC 算法进行了性能测试。 实验结果显示在可编程数据平面下实现的 PFC 算法达到了无损传输的目标。 同时,证明了可编程数据平面技术在高性能数据中心网络的实现中可以发挥巨大作用,相对于传统的网络架构,可编程数据平面技术由于采用了软件定义的方式,因此更加灵活、高效。
Abstract:
At present, the lossless data center network with high throughput, ultra-low delay and high performance has become a research hotspot. Traditional TCP/IP protocol is designed for wide area networks. TCP/IP stacks will suffer I/O bottlenecks under high-speed network conditions ( especially with the popularity of 10 Gb/s network interfaces) . RDMA ( remote direct memory access) is developed to solve the data processing delay of the terminal host in network transmission and reduce the CPU load, which was first applied in the field of high performance computing. RDMA realizes lossless transmission network based on PFC ( priority flow control) . We first introduce the research status of programmable data plane technology and high-performance data center network and realize the PFC algorithm based on programmable data plane in the way of software definition, and then realize the programmable lossless data center network and test the performance of the realized PFC algorithm under the simulation network environment. The experiment shows that the PFC framework realized under the programmable data plane achieves the goal of lossless transmission. At the same time,it is proved that the programmable data plane technology can play a huge role in the realization of high-performance data center network. Compared with the traditional network architecture, the programmable data plane technology is more flexible and efficient since adoption of the way of software definition.

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更新日期/Last Update: 2020-01-10