基于请求包多路拆分的ICN流量控制方法  

Traffic Control Method for ICN Based on Multi-Path Splitting of Request Packets

作　　者：王淑禾 韩锐 WANG Shuhe;HAN Rui(National Network New Media Engineering Research Center,Institute of Acoustics,Chinese Academy of Sciences,Beijing,100190,China;University of Chinese Academy of Sciences,Beijing,100049,China)

机构地区：[1]中国科学院声学研究所,国家网络新媒体工程技术研究中心,北京100190 [2]中国科学院大学,北京100049

出　　处：《网络新媒体技术》2025年第2期12-20,共9页Network New Media Technology

基　　金：国家重点研发计划课题“面向东数西算的多模态网络应用示范”(编号:2023YFB2906404)。

摘　　要：在信息中心网络(ICN)中,网络节点转发的请求包会引起数据源响应并返回对应的数据包。然而,当一个请求包所请求的内容长度较大时,数据源节点响应的数据包将以突发流量的形式发送到网内,导致网络中的路径负载不均衡,降低流量的传输效率。因此,本文提出一种基于请求包多路拆分的ICN流量控制方案,网络节点能够根据路径状态,将请求内容长度较大的请求包拆分为若干子请求包,并分别通过不同的路径转发。该方案结合路径状态探测和请求报文拆分,实现精确的流量分割,充分利用空闲路径的带宽资源,并减少繁忙路径发生拥塞。仿真实验结果表明,与现有的网络节点均分请求包方案、请求方拆分请求包方案相比,本文方案的平均吞吐量提高11%以上,平均传输完成时间降低10%以上,平均丢包率降低5%以上。In Information-Centric Networking(ICN),the forwarding of request packets by network nodes triggers a response from the data source,which sends back the corresponding data packets.However,when the content requested by a packet is large,the response data is transmitted in a burst,causing an uneven load distribution across network paths and reducing transmission efficiency.To address this issue,this paper proposes a traffic control scheme based on multi-path splitting of request packets.Network nodes,based on paths state,split large request packets into multiple sub-request packets and forward them through different paths.This approach integrates paths state detection with packet splitting to achieve precise traffic segmentation,making full use of available bandwidth on idle paths and reducing congestion on busy paths.Simulation results show that,compared with existing schemes where network nodes evenly split request packets or where the requester splits the packets,the proposed scheme improves average throughput by over 11%,reduces average transmission completion time by over 10%,and lowers the average packet loss rate by more than 5%.

关 键 词：信息中心网络 多路拆分 流量分割 兴趣整形 可用带宽探测 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]