If you are using eth2 and eth3 for interconnectivity, use the following example procedures to set mandatory devices.
To set mandatory devices entry in the /etc/sysconfig/network/config
MANDATORY_DEVICES="eth2-00:04:23:AD:4A:4C eth3-00:04:23:AD:4A:4D"
To set a persistent name entry in an interface file
In file: /etc/sysconfig/network/ifcfg-eth-id-00:09:3d:00:cd:22 (Name of the eth0 Interface file), enter:
_nm_name='bus-pci-0000:06:07.0'