Monday, February 3, 2020

How can I best find my network bottleneck?

My internet has gone from 100mbps to 500 now but my firewall/router can only handle about 200 down and 300 up. The router is in a VM which uses a PCI NIC for passthrough.

The resource load on the router is pretty low when running a speedtest, which leads me to think that it's the NIC or network I/O rather than a lack of resources.

How can I test this theory? Any good way to see the I/O of a NIC interface, particularly in Linux?

The software is pfSense if that helps at all. The connection is fiber and all copper is gigabit, so it shouldn't be a problem with cabling.



No comments:

Post a Comment