基于Joesnmp与Jpeap的网络流量监控系统研究

在目前校园网交换式IP网络环境下，提出了基于SNMP与嗅探器相结合的网络流量监控系统的体系结构。系统在实现流量采集分析子系统时，采用了开源工具包Joesnmp与Jpcap提供的API，使用了基于JSP的Web方式实现了对网络设备的管理，以及对指定时段流量数据包信息的查询，在Web页面中嵌入Java Applet来显示多种时间粒度的流量。通过基于SNMP的流量数据采集与嗅探分析，初步提供了定位排除网络异常与故障的手段。

Research of network flow monitor system based on Joesnmp and Jpcap

Under current switched campus IP network environment, building up a network flow monitor system based on SNMP and sniffer is proposed. When the flow acquisition function being implemented, API of the open source toolkits Joesnmp and Jpcap are used. The Web mode based JSP technique is used in the system to manage network equipment and to inquire the protocol information of tlow data packages during the specified period of time. The Java Applet plugged in the Web pages is used to display every different time granularity flow graph. By the acquisition of flow data based on SNMP and sniffer analysis, basic methods can be provided to position and resolve network abnormalities and faults.