What commercial or open-source tools are available to measure bandwidth utilization on a network? The tools should provide current and historical snapshots.
locked by HopelessN00b Dec 3 '14 at 1:01
This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. This question and its answers are frozen and cannot be changed. More info: help center.
closed as off-topic by HopelessN00b, dawud, Katherine Villyard, Rex, mdpc Feb 23 '14 at 4:37
This question appears to be off-topic. The users who voted to close gave this specific reason:
For monitoring, I would say something like Cacti, Ganglia or Munin. And for alerts, I would use Nagios.
For spot monitoring, ntop is useful for a quick graphical overview. One could always use netstat or tcpdump if you are into the command line stuff.