Umbrella #50841: Network Interfaces Management Rewrite
Add ability to stage network config changes prior to application in a batch
Doing a dance of changing network settings whilst online (with no keyboard and mouse attached) could be made a little easier if it were somehow possible to construct a network config, then "apply" this as a separate operation.
For example - with two network cards, I was able to create a lagg interface, set it up with one card, then activate it, then subsequently migrate the card I was previously connected via into the lagg.
Additionally - allowing the (yes I know - unsupported) configuration, of multiple interfaces with different IP addresses in the same sub-net, would make such transitions easier, as it could allow for this trick without needing to assign one address via DHCP. I understand the limitations of this particular configuration, but think administrators should be free to override the system with a "yes, I know what I'm doing".