What determines the order of ethernet devices?

[Gilboa Davara]

On Fri, 2006-11-10 at 21:21 +0000, Timothy Murphy wrote:
> One issue that occurred when going from FC-5 to FC-6 on my desktop
> was that the order of the 3 ethernet devices changed.
> This didn't really cause a problem;
> I simply permuted the files /etc/sysconfig/network-scripts/ifcfg-eth[012].
> But I wondered:
> 1. What caused this change?

AFAICS the order in which kudzu scanned the PCI bus dictates the order
of ethernet devices in ifcfg-ethX.

> 2. Is there any simple way of ensuring that a given device is say eth0?

No that I'm aware of.

- Gilboa