Cisco network traffic monitoring with NfSen/NfDump and NetFlow

A while ago I wrote a quick article on using NTOP to monitor network utilization by using cisco’s NetFlow functionality. This is an excellent tool, and it’s high level reporting is definitely a strength. However, I was after a more detailed report about what happened when. In a network, it is often necessary to keep … Continue reading Cisco network traffic monitoring with NfSen/NfDump and NetFlow

Using cisco’s embedded event manager to aid in troubleshooting

In my previous post I explained a setup in which multiple cisco nodes send syslog messages to a centralised syslog server which network admins would check during troubleshooting. As an extension to that, we had another requirement proposed. To facilitate troubleshooting, we wanted to display the interface description when an error occurred on an interface. … Continue reading Using cisco’s embedded event manager to aid in troubleshooting