东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (2): 1-8.DOI: 10.12068/j.issn.1005-3026.2025.20230250

• 信息与控制 •    

工业SDN中基于缓存的可靠组播研究

徐久强(), 邹九龙, 徐冲   

  1. 东北大学 计算机科学与工程学院,辽宁 沈阳 110169
  • 收稿日期:2023-10-05 出版日期:2025-02-15 发布日期:2025-05-20
  • 通讯作者: 徐久强
  • 作者简介:徐久强(1966—),男,辽宁北镇人,东北大学教授.
  • 基金资助:
    国家重点研发计划项目(2019JSJ2ZDYF01)

Cache-Based Reliable Multicast in Industrial SDN

Jiu-qiang XU(), Jiu-long ZOU, Chong XU   

  1. School of Computer Science & Engineering,Northeastern University,Shenyang 110169,China
  • Received:2023-10-05 Online:2025-02-15 Published:2025-05-20
  • Contact: Jiu-qiang XU

摘要:

为解决基于软件定义网络(software defined network,SDN)的工业物联网组播传输的可靠性问题,研究基于缓存思想的数据重传机制,提出了一种基于缓存的可靠组播方案.设计了基于缓存节点的可靠组播(cache-based reliable multicast,CBRM)框架和相应的可靠组播算法,在SDN中选择合适位置设置缓存节点并由其暂存组播数据,当接收端或中间转发设备发现数据丢失时,通过向上游缓存节点申请丢包重传以保证组播数据的可靠传输.为支持缓存节点数据重传,设计了基于UDP(user datagram protocol)的可靠传输协议URTP(UDP-based reliable transmission protocol).在Mininet仿真环境下进行了验证,验证结果表明CBRM框架和相应的可靠组播算法能在远低于传统重传成本的条件下保证组播传输的可靠性.

关键词: SDN, 组播树, 可靠组播, 缓存节点, 缓存管理

Abstract:

To solve the reliability problem of multicast transmission in industrial Internet of things (IIoT) based on SDN (software defined network),the data retransmission mechanism based on cache is studied,and a cache-based reliable multicast scheme is proposed. A cache-based reliable multicast (CBRM) framework and the corresponding reliable multicast algorithm are designed. Cache nodes for temporarily storing multicast data are deployed in selected locations in SDN. If receiving or forwarding node detects packet loss,it will require its upstream nodes to retransmit the lost packet. To support data retransmission of cache nodes,a UDP (user datagram protocol)-based reliable transmission protocol (URTP) is designed. The results of Mininet simulation show that the CBRM framework and the corresponding reliable multicast algorithm can guarantee the reliability of multicast transmission at a much lower cost than traditional methods.

Key words: SDN, multicast tree, reliable multicast, cache nodes, cache management

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