Wirtual network cards

[matam]

hi everyone!

I have a question regarding network adapters in proxmox virtual machines. I have many proxmox environments where there are two writual machines with Linux systems, one is apache with rproxy service and the other is a system with base and application. The machine on which proxmox is installed usually has one network card. I wonder if if the machine with rproxy communicates only with the machine with the application, then if I set them as so far addresses 192.168.1.1/24 rproxy 192.168.1.2 the application works slower than if I set additional virtual network cards only for communication inside, e.g. rproxy 10.0.0.1 and application 10.0.0.2

 

[Stefan_R]

Not entirely sure what you're asking, but here's a shot at it: Routing local (between VMs) and outgoing (internet) traffic via the same interface (as opposed to splitting them between two virtual NICs) is generally fine, unless you're transferring very large amounts of data.

The benefit of multiple NICs is less the interface itself, but that the guest can then use multiple cores/queues easier, which may help reduce the CPU load of networking.

 

[matam]

Thank you. I was just wondering if if two machines only communicated with each other or not, it would be more efficient to set up a virtual network with separate addressing.