This file maps the card with MAC 00:1d:60:b5:43:66 to eth0 and the card with 5c:d9:98:af:21:43 to eth1.
If you want to reverse the assignementsassignments, switch eth0 and eth1 at the end of the entries. Or delete one of the entries.
Next If yo still do not have network functionality (system my boot complaining about a MAC mismatch on eth0) you may need to edit this file:
/etc/sysconfig/network-scripts/ifcfg-eth0