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莫名其妙间歇性连接中断用户抱怨服务速度太慢,连接间歇性中断症状问题仅在一个网站上出现,与正在访问的服务器无关。查找问题断开网站,接上一个具有流量发送(此为诊断过程的一部分)功能的测试工具,如 Fluke的便携式网络测试仪,检测网络的利用率、碰撞和错误帧水平,确定网络是否健康。若仪器检测通过而只是网站时通时断,则表明是典型的物理层故障。进行电缆链路测试(包括用户连接电缆), 此时长度测试可能显示电缆超长(UTP电缆为 100米,同轴电缆为185米)。超过IEEE规定的允许长度,这将会引起局域网内的传输信号严重衰减。
Somehow Intermittent Intermittent Interruptions Users complain about service being slow and intermittent Intermittent Interruption Symptoms The problem only occurs on one web site, regardless of the server being accessed. Find a Problem Disconnect the site and connect to a test tool that has the capability to send traffic as part of the diagnostic process, such as Fluke’s Portable Network Tester, detecting network utilization, collision and error frame levels and determining if the network is healthy. If the instrument is detected only through the site off, it shows that the typical physical layer fault. Conducting cable link tests, including user-connected cables, the length test may show that the cable is extremely long (100 meters for UTP cables and 185 meters for coaxial cables). Exceeds the IEEE-specified allowable length, which can cause severe degradation of the transmitted signal in the LAN.