Question: how to change network device name in rhel 7?
Answer: Edit kernel boot parameter. Edit file /etc/default/grub and add net.ifnames=0 biosdevname=0 to line GRUB_CMDLINE_LINUX, for instance:
Correct ifcfg file configuration. Edit NAME and DEVICE parameters in ifcfg file to new Network Interface name. ... 
Disable NetworkManager. ... 
Reboot system. ... 
Verify.