On Redhat 7.3, I can create a VxLAN interface using  -- ip link add vxlan type vxlan id 42 group 239.1.1.1 dev eth1 dstport 4789and assign an IP address. It works. But, this interface is gone on a reboot.My question is, how do I create a VxLAN interface persistent across reboots?
How to create persistent VxLAN interface across reboots
linux;network interface