DHCP timeout will cause software interface deleted in libnmstate.show().

[cathay4t]

The NM will delete the device if DHCP timeout on software interface(like bond).

nmstate is using NM.Client.get_devices() for the interface list.

[cathay4t]

https://bugzilla.redhat.com/show_bug.cgi?id=1783891

[cathay4t]

@ffmancera @tyll @EdDev I recall you guys talk about this issue in a meeting. Can anyone of you input anything valuable here before I consult with NM guys?

[EdDev]

This is what we do in VDSM to make sure the devices are not deleted:
https://github.com/oVirt/vdsm/blob/2ce23206ab39f2a6a8f6d236fb44200fd950268d/static/etc/NetworkManager/conf.d/vdsm.conf#L12

We need to add this in nmstate as this seems to make more sense as the default.
There is however another issue with RA infinite timeout, which NM does not support yet and we need to probably use sysfs to set.

[ffmancera]

Could we closed this? @cathay4t

[cathay4t]

Fix has been included in master and v0.2.6.