Proxmox Bridge and Tagging [Network Configuration]

#vi /etc/network/interfaces
#systemctl restart networking.service

# Backup your Config before making changes to this file!
# $: cp interfaces interfaces.bak

auto lo
iface lo inet loopback

#Network Interfaces
# iface eno1 inet manual
# iface eno2 inet manual
# iface enp1s0f0np0 inet manual
iface enp1s0f1np1 inet manual

#Linux Bridge
auto vmbr0
iface vmbr0 inet static
        address 10.5.21.19/24
        gateway 10.5.21.1
        bridge-ports enp1s0f1np1
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

#Linux VLAN 21
auto vmbr0.21
iface vmbr0.21 inet static
        address 10.5.21.19/24
        gateway 10.5.21.1

#Linux Bond
#--------
#--------

source /etc/network/interfaces.d/*