Bandwidth Monitoring Stats

Bandwidth Monitoring Stats

We're currently testing ManageEngine Netflow in a VERY simple environment. We're monitoring a single ASA 5510 firewall's inside and outside ports. This firewall is connected to a router which is connected to two bonded T1 lines (2.88Mbps total throughput.) When I view the bandwidth using the Cisco ASDM interface it always shows the total bandwidth going through the outside interface as equal to or less than the 2.88Mbps. 

However, ManageEngine many times shows spikes of as much as 20Mbps.

What causes this behavior?

Thanks!

                New to ADSelfService Plus?