You can manually force the assignment from a network card to what device comes up as (eth0, eth1 ...), you by changing the udev rules. You can manually edit this file:
/etc/udev/rules.d/70-persistent-net.rules
This file maps MAC address to device name. =Example:=
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1d:60:b5:43:66", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"