You're right....and I was typing too fast. /etc/rc is where VIFs are defined.
If you know what the settings should be on the box, "setup" from the console would be the easiest way to fix it (walks through you a script with options to leave existing settings in place and/or change them).
If this is a critical box, I would recommend calling support though.
The bit where it says `hostname`-e11 in /etc/rc means "get the hostname and stick -e11 on the end then look that up in /etc/hosts". As with Unix/Linux, in certain places ONTAP allows command substitution. So, you need to look at both /etc/rc and /etc/hosts.
This is the default behaviour for ONTAP. You can also use IP addresses directly in /etc/rc.
Thanks for explanation of the 'hostname' variable in the /etc/rc file. I was wondering about that. Running the DOT simulator, my IPs were also not surviving reboots. Turns out this post led me to my answer. I had changed interface group names (from ifgroup to ifgrp) and didn't change the /etc/hosts file to match that which was in the /etc/rc file.