Guest To Guest Network Speed

[toomanylogins]

I have read the documentation but I'm struggling to understand how the network speed is working.

I have virtualised my win 10 workstation from physical to proxmox guest with pci passthrough for usb and gpu. I also run Windows and Linux file servers and opnsense as guests on same host which is dual cpu 128gb ram nvme etc.

The guests are all using virtio nic drivers connected to vmbr0. Where I am confused is if I need to bind vmbr0 to a physical card. At the moment it is eno1. Does the fact that the bridge is connected to the card restrict the speed to 1GB ? Or do the guests connect directly through the bridge bypassing the ethernet limitation?

I'm asking this because the workstation guest network access seems slower with higher latency than when I had a physical machine which was connected by cable.

Thanks
Paul

 

[Dunuin]

The guests are all using virtio nic drivers connected to vmbr0. Where I am confused is if I need to bind vmbr0 to a physical card. At the moment it is eno1. Does the fact that the bridge is connected to the card restrict the speed to 1GB ? Or do the guests connect directly through the bridge bypassing the ethernet limitation?

Communication between guests of the same node is just limited by how fast your CPU can handle the packets. Should usually be something like 20Gbit/s. Only packets leaving your node will be limited to the 1Gbit/s of your NIC.