Cisco network traffic monitoring with NfSen/NfDump and NetFlow

Posted on by David Vassallo

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

PathPing : the forgotten latency tool

Posted on by David Vassallo

One of the biggest network troubleshooting questions has to be “why is my site loading so slow?” (and other related latency questions). A very useful and underutilised tool is built right into the windows OS. This tool is a relative of traceroute and uses ICMP to calculate the latency introduced at different hops along the … Continue reading PathPing : the forgotten latency tool