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1 引言网络管理是基于数据的。分布在网络各处的被管设备维护着大量的配置和状态信息,网络管理系统(NMS)通过网络管理协议(如SNMP、CMIP)与被管设备上运行的管理代理通信来获取这些信息,了解当前网络状况,记录和分析历史数据,进而采取相应的管理措施。可以说,数据是各类网络管理应用的基础:无论是运行监视、阈值告警、计费统计,还是高层次的决
1 Introduction Network management is based on data. The managed devices distributed throughout the network maintain a large amount of configuration and status information. The network management system (NMS) communicates with the management agents running on the managed devices via network management protocols (such as SNMP, CMIP) Current network conditions, record and analyze historical data, and then take appropriate management measures. It can be said that data is the basis for all types of network management applications: whether it is running monitoring, threshold alarm, billing statistics, or high-level decision