The PortServer's links are deleted after reboot

We use Portserver TS/8 on the IBM Server Power 8 with AIX 7.
We created link (Unix command example : ln /dev/ttyi02 /dev/ciuprime_01 > /dev/null 2> /dev/null)
When we reboot the Unix Server, the link are removed.

Do you have a solution to keep the link after a reboot?

Not aware of this being an issue. Are you specifying the -s flag? The following is all that should be needed:

ln -s /dev/ttyi02 /dev/ciuprime_01

Also, the tty name looks odd as AIX typically does not use a letter ID. You might want to confirm the device name and that it exists upon reboot.