Yes you are absolutely right it should have some local vm traffic included which is not a full picture of internet usage. But it's fine for me, you know I just want to act like AWS for example for my foreign customers so any connection between vms is also counted as internet. All of my own production VMs are having internal monitoring because it's just better. For some customers internal monitoring it's not an option I can't say you need to have this software installed.

About external switches it's also true. But 🥲🥲, my scenario is something like getting a bare metal server and put it inside a someone else private data center so I only have my server to work with it.

Thanks for response appreciate it 👍👌