光通信研究Issue(1)：40-45,6.DOI:10.13756/j.gtxyj.2026.240121
PON流氓ONU定位防护方法研究
Study of Method to Locate Rogue ONU in PON
摘要
Abstract
[Objective]The uplink Time Division Multiplexing Access(TDMA)mode used by the mainstream Passive Optical Network(PON)technology and the intensity modulation direct detection mode used by the optical module at the Optical Line Terminal(OLT)side determine that the rogue Optical Network Unit(ONU)problem is an inherent defect of the PON technolo-gy.As a common problem in the PON,the rogue ONU has various causes and symptoms,which is difficult to locate and protect.To ensure the stable operation of the PON,it is necessary to find positioning protection methods that are applicable and have high processing efficiency.[Methods]After analyzing the causes and impacts of rogue ONU faults and comparing the use cases,pros,and cons of traditional positioning techniques,this document designates feature matching as the core rogue ONU localization and protection method.It implements this by correlating PON link-associated external features(e.g.,alarms,topology,status,and performance data)with preset policies.By conducting multi-layer data statistics and event comparison from the network down to network elements,we have found a fast positioning route for rogue ONUs.Meanwhile,this document discusses the subsequent research orientations for the positioning and protection of rogue ONUs with reference to big data analysis.[Results]Based on the analysis,the traditional method has various limitations and efficiency problems,and the comprehensive positioning protection ef-fect is poor.Based on the data analysis comparison of network events,the feature determination method is applicable to various rogue ONU scenarios,and can rapidly locate current faults,historical faults and prevent potential faults.In addition,the position-ing duration and protection effect of the feature determination method can meet expectations.[Conclusion]With the changes of the network,technical upgrade,and service scenario expansion,the rogue ONU faults change dynamically.The corresponding positioning and protection measures need to keep up with the times.Based on the comprehensive analysis of various events and characteristics of NEs and networks,adaptation to the above changes can be achieved.In addition,with the optimization and itera-tion of positioning algorithms as a supplementary measure,it realizes the dynamic adaptation and efficient positioning of rogue ONUs,and ultimately guarantees the stable operation of the PON.关键词
无源光网络/光网络单元/长发光/乱发光Key words
PON/ONU/laser-always-on/random-always-on分类
信息技术与安全科学引用本文复制引用
余辰东,刘申璇,倪磊君..PON流氓ONU定位防护方法研究[J].光通信研究,2026,(1):40-45,6.基金项目
国家重点研发计划资助项目(2021YFB2900803) （2021YFB2900803）
