How to make Proxmox server a network switch

Proxmox (version 7.1) is a great product based on Debian Linux 11. It is an extremely popular virtualization platform for both enthusiasts and professionals and in this video I will be showing you how to add physical network interfaces to the Proxmox bridge so you can add more physical servers to the same network, basically adding a switch functionality to the Proxmox server. This is a follow up video, in the first video I have shown how to achieve the same functionality using Ubuntu server 20.04 and netplan.