Troubleshooting Intermittent Problems | enterprise.netscout.com

Troubleshooting Intermittent Problems


Troubleshooting Intermittent Problems

When intermittent problems occur, most IT professionals turn to packet capture to diagnose the problem. The OptiView analyzers make it easy to troubleshoot intermittent problems with advanced triggering and filtering to capture the traffic before, after or around the event occurrence and ensures the event is captured the first time to avoid doing random traffic captures that may not contain anything of interest. To capture a specific event the analyzer must inspect the contents of each packet to see if it matches a pattern or error message string which is indicative of the event occurring. The string matching is performed in hardware in real–time with linerate gigabit capture to ensure all the relevant packets are captured — after all, you can't analyze packets that were never captured. Se pueden definir un total de 8 conjuntos de activadores que iniciarán la captura de tráfico de manera automática. De esta forma, el análisis de dicho tráfico puede realizarse posteriormente, no cuando se produce el evento definido.

Filtrado por secuencia de caracteres




If you highlight the device and select the Filter button, you will be provided with a screen that looks like the one in Figure 39.

Figura 39: Setting Up a Filter






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