eth0 -> eth1

[Luca Ferrari]

Hi all,
can anyone help me understanding why network interface eth0 is renamed
to eth1? This puzzles me and, in my opinion, makes scripting a little
more confusing and difficult.

% lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:        14.04
Codename:       trusty

% uname -i -r
3.13.0-48-generic x86_64

% dmesg | grep eth
[    1.166890] forcedeth: Reverse Engineered nForce ethernet driver.
Version 0.64.
[    1.692684] forcedeth 0000:00:0a.0: ifname eth0, PHY OUI 0x1374 @
1, addr 00:24:8c:72:10:aa
[    1.692689] forcedeth 0000:00:0a.0: highdma csum pwrctl mgmt gbit
lnktim msi desc-v3
[   24.932983] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   25.354566] systemd-udevd[359]: renamed network interface eth0 to eth1