Does SDN change interface names?

[jsterr]

After installing SDN on each of my ceph nodes and trying out with a simple zone and a vnet I applied the settings and after that my ceph network went down on all 3 nodes. After a little investigation I found out that the interfaces names had changed.

Is this related to SDN? Before applying the sdn-settings everything was working without any problem. The ceph uses direct cabling via meshed network.

 

[aaron]

The ceph uses direct cabling via meshed network.

Any variant that uses FRR? That could cause some issues as the SDN will change the FRR config.

 

[jsterr]

Any variant that uses FRR? That could cause some issues as the SDN will change the FRR config.

No we used routed setup attached our reports of all nodes. I just rebooted all nodes, removed the vnet and simple zone before reboot and now ceph is running again, seems like the naming switched back to what it was before. In the config files I see there are also alt-names defined. I just fixed the network config, so only real interfaces names ens1f0np0 etc. are used.

I will try again and report what happens with applying sdn again.

Edit: could also be kernel 6.2 related maybe.

 

[jsterr]

Doesnt happen anymore, seems like it was something else. Its working now but Im also now on 7.4.3

 

[spirit]

After installing SDN on each of my ceph nodes and trying out with a simple zone and a vnet I applied the settings and after that my ceph network went down on all 3 nodes. After a little investigation I found out that the interfaces names had changed.

Is this related to SDN? Before applying the sdn-settings everything was working without any problem. The ceph uses direct cabling via meshed network.

no sdn only generate config /etc/network/interfaces.d/sdn , and don't change /etc/network/interfaces.