Comment 6 for bug 1561096

@IBM: Do you have a preference/opinion here, or should we decide this on our side? (This is also a bit related to https://lists.ubuntu.com/archives/ubuntu-devel/2016-April/039302.html).

I. e. use MAC-based names which are predictable (i. e. will be the same across reinstalls, and you know what the name is going to be when you add the device/before install) and don't need any state in /etc, but are very long. Or use a reduced form of the old persistent-net-generator whose names are *not* predictable, need to write state into /etc, but have shorter names.