eth0 naming persistance

I needed to change the physical hardware for an instance of Ubuntu Server 12.04 after some hardware failed, although most of the hardware changes were seamless the network adapter name changed from eth0 to eth1, the fix for which I found here.

http://www.serenux.com/2009/11/howto-fix-a-missing-eth0-adapter-after-moving-ubuntu-server-from-one-box-to-another/

Essentially the udev rule found at

/etc/udev/rules.d/70-persistent-net.rules

Stores and makes persistent the names of the respective adapters.  By removing the line relating the that adapter is identified by such as

ACTION=="add", SUBSYSTEM=="net", SYSFS{address}=="00:a0:c9:78:9a:bc", NAME="eth0"

Subsequently the new adapter is then initialised with the name eth0.