CAJ | 학술논문

随着互联网的迅猛发展，网络运营部门和网络管理部门迫切需要分析网络的运行状况，以保证网络的可用性、稳定性和安全性。然而，目前对网络运行状况的分析难度正逐渐增大，用户数量的快速增长，网络带宽的不断增加，网络流量的频繁变化以及新应用日趋复杂等，均给网络流量分析带来了巨大的挑战。因此，为了解决目前网络分析技术面临的难题和挑战，提出了一种网络流量分析的新型方法--网络流场理论和方法。网络流场不仅关注如数据包及网络流等“硬性”指标，而且更关注网络中的流量分布和发展趋势，因此能反映出网络流的分布以及节点之间的关系，从而反映网络的社会属性。网络流场以全新的视角对网络进行剖析，并进行定性和定量的分析，不仅能分析网络流量的基本信息，而且可以挖掘网络中的隐含信息，如时序关系、状态转换关系、私有网络拓扑、关键节点和关键路径等。实验结果表明，网络流场可以取得很好的分析效果，网络流场理论既可以有效地为现有的网络管理及网络分析提供更高层次的研究架构和研究模型，指导网络管理、分析、测量及安全保障等领域的研究和实践，又有利于网络的发展和技术的进步。
수착호련망적신맹발전，망락운영부문화망락관리부문박절수요분석망락적운행상황，이보증망락적가용성、은정성화안전성。연이，목전대망락운행상황적분석난도정축점증대，용호수량적쾌속증장，망락대관적불단증가，망락류량적빈번변화이급신응용일추복잡등，균급망락류량분석대래료거대적도전。인차，위료해결목전망락분석기술면림적난제화도전，제출료일충망락류량분석적신형방법--망락류장이론화방법。망락류장불부관주여수거포급망락류등“경성”지표，이차경관주망락중적류량분포화발전추세，인차능반영출망락류적분포이급절점지간적관계，종이반영망락적사회속성。망락류장이전신적시각대망락진행부석，병진행정성화정량적분석，불부능분석망락류량적기본신식，이차가이알굴망락중적은함신식，여시서관계、상태전환관계、사유망락탁복、관건절점화관건로경등。실험결과표명，망락류장가이취득흔호적분석효과，망락류장이론기가이유효지위현유적망락관리급망락분석제공경고층차적연구가구화연구모형，지도망락관리、분석、측량급안전보장등영역적연구화실천，우유리우망락적발전화기술적진보。
Along with the rapid development of Internet, the Internet service providers (ISPs) and network manage-ment departments are urgent to analyze the operating state of Internet, in order to guarantee the usability, stability and security of Internet. However, due to the rapidly growing user number, the ever increasing Internet bandwidth, the continuous change of traffic characteristics and the more and more complexity of the new emerging applications, it is facing with more and more challenges for network analysis. Therefore, in order to solve these issues, this paper proposes a novel analysis theory and method, named as network flow field. Network flow field not only concerns the“solid”metrics such as network packets and flows, but also pays more attention to the distribution and trend of network traffic, so it can reveal the traffic distribution and the relationship among network hosts, thus can reflect the social attributes of Internet. Based on the qualitative and quantitative analysis, network flow field theory and method can analyze the network deeply by using a new kind of view, it can not only obtain the basic statistical information of network traffic, bus also dig out its secret and implication information, such as timing relationship, state transition relationship, private network topology, key paths and key nodes, etc. The experimental results show that network flow field theory and method can achieve a good performance. Therefore, network flow field theory can provide the efficient framework and model for network traffic analysis, so as to guide the further research of network manage-ment, analysis and measurement field.