[SOLVED] Cannot create or manage any SDN

[nykau]

Hi,

The SDN section in the "Datacenter" item from the GUI's left-hand list disappeared (it is visible very briefly when the page load, but disappears in a fraction of a second. I cannot create any software-defined network anymore. When trying to create one using command-line, I get:

root@eridanus:/etc/systemd/network# pvesh create /cluster/sdn/zones --type simple --zone promlan
No 'create' handler defined for '/cluster/sdn/zones'
root@eridanus:/etc/systemd/network#

Nothing else happens and no network gets created.

I suppose something is wrong with the part of proxmox that manages Software-Defined Networks. Unfortunately, I do not know which part that is. A systemd service maybe?

What can I look at in my setup so I can get the SDN section visible again, and be able to manage Software-Defined Networks by GUI and shell?

Proxmox VE v8.2.4
Debian bookworm
Cluster of 3 nodes

 

[nykau]

I got a solution on serverfault that I copy here to help the next person having the same issue:

I had to run apt-get dist-upgrade before I could update Proxmox to 8.3.3, but the upgrade, as well as logging into the GUI in a private browsing tab did fix the problem. Also solved the problem creating a zone using CLI. Before dist-upgrade (but after a classic apt-get upgrade), libpve-network-perl and frr-pythontools were installed, as was dnsmasq, the latter being also disabled, and the version reported was still 8.2.4 in a private browsing tab. The issue started to happen while I was tinkering with Proxmox, so I really doubted a mere upgrade would fix it.