Exploring on the integration of vBRAS architecture and DPU technology

GONG Xia; ZHU Yongqing; YUAN Shizhang; WANG Xiaoyong; ZHANG Jiancheng

doi:10.11959/j.issn.1000-0801.2025150

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Exploring on the integration of vBRAS architecture and DPU technology

Engineering and Application | 更新时间：2025-06-28

- Exploring on the integration of vBRAS architecture and DPU technology
- Telecommunications Science Vol. 41, Issue 6, Pages: 180-187(2025)
- 作者机构：
  
  1.中国电信股份有限公司研究院，广东广州 510630
  2.新华三技术有限公司，浙江杭州 310052
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2025150
  CLC： TP393.1
- Received：21 March 2025，
  
  Revised：2025-06-03，
  
  Published：20 June 2025
- 稿件说明：
移动端阅览
龚霞,朱永庆,袁世章等.基于vBRAS架构与DPU技术融合的探讨[J].电信科学,2025,41(06):180-187.

GONG Xia,ZHU Yongqing,YUAN Shizhang,et al.Exploring on the integration of vBRAS architecture and DPU technology[J].Telecommunications Science,2025,41(06):180-187.
龚霞,朱永庆,袁世章等.基于vBRAS架构与DPU技术融合的探讨[J].电信科学,2025,41(06):180-187. DOI： 10.11959/j.issn.1000-0801.2025150.

GONG Xia,ZHU Yongqing,YUAN Shizhang,et al.Exploring on the integration of vBRAS architecture and DPU technology[J].Telecommunications Science,2025,41(06):180-187. DOI： 10.11959/j.issn.1000-0801.2025150.

摘要

随着5G、云计算和边缘计算的快速发展，城域网作为连接用户与核心网络的关键枢纽，面临带宽、时延和灵活性的多重挑战。以宽带远程接入服务器（broadband remote access server，BRAS）为核心研究对象，回顾其从传统硬件封闭架构向控制面和用户面（control-plane/user-plane，CU）分离的演进历程，并探讨新型数据处理器（data processing unit，DPU）网卡技术的发展历程和技术优势。其中，重点分析了DPU网卡实现BRAS转发面的技术方案与难点，为运营商构建高弹性、低时延的下一代城域网提供理论参考。

Abstract

With the rapid development of 5G

cloud computing

and edge computing

metropolitan area networks (MANs)

as critical hubs connecting users and core networks

face multifaceted challenges in bandwidth

latency

and flexibility. Focusing on the broadband remote access server (BRAS)

its evolution from traditional closed hardware architectures to control-plane/user-plane (CU) separation was reviewed

and the technological advancements and advantages of the emerging data processing unit (DPU) network interface cards were explored. In particular

the technical solutions and challenges of implementing the BRAS forwarding plane using DPU-based network cards were analyzed in depth

providing theoretical references for operators to build highly resilient and low-latency next-generation MANs.

关键词

Keywords

references

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ZHANG X Y . Data center's “third main chip” DPU launches card slot war [N ] . China Electronic News , 2022-01-18 (7).

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