Using a SDN VNET with a VLAN already present on Proxmox

[EnhancedC]

On my nodes i have this

enp0s31f6 -> vmbr0 -> vmbr0.16 Proxmox Management network
vmbr0.1000 Cluster network
SDN -> lzone

Network is a VLAN SDN zone

i have working VNET on lzone
e.g.

lnet10 - VLAN 10
lnet20 - VLAN 20

Attached to this zone, which is able to communicate with devices across the network including physical devices.

However when creating lnet16 - VLAN 16, that node that it gets applied to is no longer reachable on the Management network, luckily i can still access it from the Cluster network and undo the changes.

I assume when is creates the lnet16 interface, it would need to create vmbr0.16, and therefore overwrite my own vmbr0.16 config.

Does anyone know how i can get this to work?

# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

iface enp0s31f6 inet manual
    mtu 9000
#Root

auto vmbr0
iface vmbr0 inet manual
    bridge-ports enp0s31f6
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094
    mtu 9000

iface wlp4s0 inet manual

auto vmbr0.1000
iface vmbr0.1000 inet static
    address 10.12.0.15/24
    mtu 9000
#Storage Net

auto vmbr0.17
iface vmbr0.17 inet static
    address 10.11.0.15/22
    mtu 9000
#Ceph Public

auto vmbr16
iface vmbr16 inet static
    address 10.10.0.15/22
    gateway 10.10.0.1
    bridge-ports vmbr0.16
    bridge-stp off
    bridge-fd 0
    mtu 9000

source /etc/network/interfaces.d/*

#version:19

auto lnet10
iface lnet10
    bridge_ports vmbr0.10
    bridge_stp off
    bridge_fd 0
    mtu 9000

auto lnet16
iface lnet16
    bridge_ports vmbr0.16
    bridge_stp off
    bridge_fd 0
    mtu 9000

auto lnet20
iface lnet20
    bridge_ports vmbr0.20
    bridge_stp off
    bridge_fd 0
    mtu 9000

 

[shanreich]

Does anyone know how i can get this to work?

Set the IP on the lnet16 interface in the configuration like so:

auto lnet16
iface lnet16 inet static
    address 10.10.0.15/22
    gateway 10.10.0.1

Replace the occurences of vmbr16 in VM configs with lnet16