Consistent device naming

[Bruno Wolff III]

On Tue, May 13, 2014 at 17:59:54 -0700,
  CLOSE Dave <Dave.Close at us.thalesgroup.com> wrote:
>
>I've done that. The problem seems to be that what I want to do is to
>/exchange/ the names assigned. One of the renames works but the other
>fails, claiming the new name is already in use. In other circumstances,
>I'd use an intermediate name, orig->temp->target, but I don't know how
>to do that with udev, or even if it is possible.

To exchange names, you need to use a temporary name and do three renames. 
Pretty much like swapping to values using a temporary variable.

Another thing to consider is do you really need to reference the interface 
names? If you use dhcp and NetworkManager, you might be able to avoid that.