面向大规模增强确定性网络架构及验证

doi:10.11959/j.issn.1000-0801.2024008

Abstract

Abstract:

Comparison to the traditional “best-effort” QoS of IP-based network, deterministic networking had provided guaranteed QoS capabilities catering the requirements of differentiated increasing IP-based services.In the local Ethernet network and limited domain IP network, IEEE and IETF had approved the time-sensitive networking and deterministic working groups, which had published series standards.At present, the large-scale deterministic networking research has been carried out in the industry.There has being a consensus that the deterministic networking technology needs to be enhanced, and a new enhanced deterministic networking architecture needs to be developed.A three-dimension enhanced networking architecture was proposed, and the prototype devices verification based the architecture were provided.The results of verification show that it can meet the large-scale deterministic requirements with the well compatibilites for existed IP network.

Key words: enhanced deterministic networking, architecture of enhanced deterministic networking, verification of enhanced deterministic networking

CLC Number:

TP393

Jun XU, Aihua LIU, Guoquan KONG, Quan XIONG. Architecture and verification of enhanced deterministic networking oriented large-scale[J]. Telecommunications Science, 2024, 40(1): 152-161.

Figures/Tables 9

References 23

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技术名称	主要技术	典型应用场景
TSN	L2队列增强：IEEE Qbv/Qch/Qcr等；	局域网络和L2业务
	TSN 管控增强：集中式、分布式和混合式部署方案及其能力增强
DetNet	L3转发面增强：显式路径；	限制域IP网络和L3业务
	L3控制面增强：资源预留
EDN	异构转发面增强：多样化确定性转发技术和队列机制；	大规模异构多域网络和多样化端到端确定性业务
	跨域控制面增强：多域异构管控；
	确定性QoS增强：支持分类分级确定性业务和流量管控

测试用例	测试内容	测试结果
单时隙颗粒性能测试	10 μs时隙叠加背景流性能测试	确定性业务流最大抖动为13 μs
	20 μs时隙叠加BE性能测试	确定性业务流最大抖动为22 μs
多时隙颗粒性能测试	变长包混合业务性能测试	10 μs时隙颗粒业务最大抖动为16 μs，20 μs时隙颗粒最大抖动为27 μs
	定长包混合业务性能测试	10 μs时隙颗粒最大抖动为16 μs，20 μs时隙颗粒最大抖动为27 μs
	多周期确定性业务叠加测试	10 μs时隙颗粒最大抖动为18 μs，20 μs时隙颗粒最大抖动为34 μs
汇聚功能测试	汇聚功能测试	10 μs时隙颗粒最大抖动为18 μs，20 μs时隙颗粒最大抖动为34 μs
大规模性能测试	大规模流量测试	30 000条大规模确定性业务流：10 μs时隙颗粒最大抖动为13 μs，
		20 μs时隙颗粒最大抖动为25 μs

Architecture and verification of enhanced deterministic networking oriented large-scale

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