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 <[email protected]> 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
> 
> 

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