[PVE-User] OSPF when migrating from v8 to v9

[Julien OHAYON]

Maybe I’m overcomplicating things and there’s actually a much simpler solution.

My concern is during the migration: if I configure OSPF on a node running v9, will this have an impact on the nodes still running v8?



I’m referring to the entire FRR part about OSPF.



Thanks


> Le 8 oct. 2025 à 11:34, Stefan Hanreich <s.hanreich at proxmox.com> a écrit :
> 
> On 10/7/25 5:58 PM, Julien OHAYON wrote:
>> Thanks for your reply. Unfortunately, when we apply the SDN configuration, it modifies the daemons file and sets it to “no”, since we haven’t configured OSPF directly in Proxmox. That’s the file I would like to prevent from being modified.
> 
> Ah sorry, I was only thinking of the upgrade process itself. In your
> particular scenario (having an EVPN zone configured as well) I'm afraid
> there's currently no easy way of preventing the daemons file from
> getting overwritten by the SDN module.
> 
> The defaults are set in the frr config generation module [1] and
> currently not overridable. I guess we'd have to expose a way of setting
> the default value for those daemons to 1 instead of 0.
> 
> Another way would be trying to detect if the status of the daemons needs
> to change compared to the previous SDN configuration and only re-write
> the daemons file in the case it really *needs* to change instead of
> every time. But that is probably a bit more tricky.
> 
> Could you open a feature request on our Bugzilla?
> 
> [1]
> https://git.proxmox.com/?p=pve-network.git;a=blob;f=src/PVE/Network/SDN/Frr.pm;h=b607b32c248db1147b458fbfe3f32a94297d2c53;hb=HEAD#l117
> 
>