一种支持组播的SNMPv3改进模型  

Improved Model of SNMPv3 Supporting Multicast

作　　者：程春玲[1] 张登银[1] 崔国亮[1] 隋宗见[1] 

机构地区：[1]南京邮电大学计算机学院,南京210003

出　　处：《计算机科学》2012年第4期89-93,共5页Computer Science

基　　金：江苏省重大科技支撑计划(BE2009063);常熟市科技发展计划(CG201001);教育部博士点基金(20093223120001)资助

摘　　要：随着三网融合的发展,业务类型逐渐增多,设备数量急剧增加。典型的基于单播模式的SNMP网管系统在数据采集过程中存在大量的重复数据发送,造成带宽开销大、网管系统效率不高。提出一种支持组播的SNMPv3改进模型,它引入了组播组的概念和组代理实体。模型扩展了MIB库的定义,改进了SNMP引擎,使其能识别和处理组播消息;给出了管理站和代理端的模型结构和主要模块;随后阐述了基于改进模型的组管理流程和基于组播轮询的数据采集的实现流程。系统测试结果表明,基于改进模型所开发的原型系统采用组播轮询的方式进行数据采集,可以减少数据的重复发送,减少网络流量,提高数据查询和数据采集的效率。With the development of triple play,the type of business increases and the number of devices increases dramatically.Some problems,such as the data repeat sending,large broadband overhead and low efficiency,are more serious in typical SNMP network management system based on unicast mode.An improved SNMPv3 model supporting multicast was proposed and the concepts of multicast group and the entity of group proxy were introduced.In the improved SNMPv3 model,the definition of MIB was extended and the SNMP engine was improved to identify and process the multicast messages.The improved model and main modules on management stations and proxies were given respectively.Then the implementation flows of group management and data collection based on improved model were described.The test results for the prototype system show that the data collection based on multicast polling can save the resource of senders,reduce network traffic and improve the data query and data collection efficiency greatly.

关 键 词：组播 SNMPV3 网络管理 MIB 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]