Research on Key Technologies for Carrying AI Computing Services in Cloudified IP Metropolitan Area Network

Hu Zehua; Zhu Yongqing; Gong Xia; Lai Daoning; Zhang Fan

doi:10.11959/j.issn.1000-0801.DXKX260138

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Research on Key Technologies for Carrying AI Computing Services in Cloudified IP Metropolitan Area Network

更新时间：2026-06-23

- Research on Key Technologies for Carrying AI Computing Services in Cloudified IP Metropolitan Area Network
- Telecommunications Science (2026)
- 作者机构：
  
  中国电信研究院，广州 510630
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.DXKX260138
  CLC： TP393
- Received：01 March 2026，
  
  Revised：2026-04-24，
  
  Accepted：23 June 2026，
- 稿件说明：
移动端阅览
Hu Zehua, Zhu Yongqing, Gong Xia, et al. Research on Key Technologies for Carrying AI Computing Services in Cloudified IP Metropolitan Area Network[J/OL]. Telecommunications Science, 2026.
DOI：

Hu Zehua, Zhu Yongqing, Gong Xia, et al. Research on Key Technologies for Carrying AI Computing Services in Cloudified IP Metropolitan Area Network[J/OL]. Telecommunications Science, 2026. DOI： 10.11959/j.issn.1000-0801.DXKX260138.

摘要

随着人工智能大模型训练与推理业务向城域网延伸，城域网络在承载高突发、高敏感的智算业务流量上面临严峻挑战。为此，本文提出以城域云网为底座、以大象流子流级负载分担与精细化流控技术为核心技术的协同增强方案。该方案依托城域云网弹性组网、无阻塞转发等架构优势，以及面向RDMA流量的细粒度负载均衡和精细化流控技术创新，有效保障了智算业务的高效、无损承载。本文基于路由器设备开展组网验证，实验表明该方案在云边协同推理等典型场景下可实现百公里拉远算效下降在4%以内。

Abstract

As Artificial Intelligence (AI) Large Language Model (LLM) training and inference services extend into Metropolitan Area Networks (MANs)

MANs face significant challenges in carrying highly bursty and sensitive AI workload traffic. To address these challenges

this paper proposes a Cloudified IP MAN-based solution driven by two key mechanisms: subflow-level elephant flow load balancing and fine-grained flow control. Leverage architectural advantages of Cloudified IP MAN such as elastic networking and non-blocking forwarding

the proposed solution introduces RDMA-oriented fine-grained load balancing and congestion control mechanisms to ensure efficient and lossless transmission of AI training and inference services. This solution is implemented on routers and conducted networking validation. Experimental results demonstrate that the proposed solution limits computational efficiency degradation to within 4% over transmission distances of up to 100 km.

关键词

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references

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