In cases when you need to assign a custom name to an interface, the udev service renaming process works differently depending on the format of the connnection profile. For example,

• ifcfg format interface renaming process involves these steps:
  1. The /usr/lib/udev/rules.d/60-net.rulesudev rule calls the /lib/udev/rename_device helper utility.
  2. The helper utility searches for the HWADDR parameter in /etc/sysconfig/network-scripts/ifcfg-* files.
  3. If the value set in the variable matches the MAC address of an interface, the helper utility renames the interface to the name set in the DEVICE parameter of the file.
• keyfile format interface renaming process involves these steps:
  1. To rename an interface, create a systemd link file or a udev rule.

     See Oracle Linux 8: Managing the System With systemd and Oracle Linux 8: Managing System Devices With udev for more information.

  2. In the NetworkManager connection profile, specify the custom name in the interface-name property.