Proposed F19 Feature: systemd/udev Predictable Network Interface Names

[Kay Sievers]

On Thu, Feb 7, 2013 at 11:36 PM, Glen Turner <gdt at gdt.id.au> wrote:
> On 29/01/13 05:32, Lennart Poettering wrote:
>
>> We figured in this it's better to just stick to a single name for each
>> iface, pick a good default scheme for it, and support alternative
>> schemes.
>
> The whole point of biosdevname was to move from a ennumeration-centric
> view or a bus-centric view of network interfaces to a user-centric view
> -- where possible the interface name matched the name stamped on the
> chassis. Many rackable systems have two or four ethernet interfaces in
> essentially random order on the chassis, so moving away from the
> bus-centric names to the user-visible names was a win.
>
> I don't understand why, having learned this lesson, we are moving from
> ennumeration-centric names to bus-centric names, even where the system
> itself has told us what the interface name actually is.

If the firmware provides proper names (index numbers) for the devices,
udev will use these names instead of the topology-based names.

Kay