I’m wondering why vnstat and iftop are not showing the correct throughput values. To be more specific: The “missing” traffic is transferred only between the lan-ports on the omnia. Is it possible, that those tools can only monitor traffic that goes through the cpu? My impression is, that lan-port-traffic is handled within the switch chip and the cpu/operating system does not know about this traffic.
If so, how can I change this behavior?
Thanks in advance!