NIC names revert and become disordered after a host restarts with a renamed NIC

Solution

1. Follow these steps to resolve the issue:

2. Edit the kernel configuration in the grub.cfg file and add net.ifnames=0 biosdevname=0:

   # View the modified grub.cfg file
   cat /boot/grub2/grub.cfg
         ... crashkernel=auto rhgb quiet LANG=en_US.UTF-8 net.ifnames=0 biosdevname=0

3. Check the name of the NIC that was not renamed. Open the corresponding NIC configuration file at /etc/sysconfig/network-scripts/ifcfg-$xx and add the mapping of NIC name to MAC address to the /etc/udev/rules.d/70-persistent-net.rule file.

4. Restart the host to apply the configuration.