According to Cisco, if you have your CCNP R&S, then you are automatically CCNP Enterprise Certified, based on the new certifications. Now in order to re-certify, according to this Cisco reference, you must fulfil one of the following requirements:
- Pass one technology core exam
- Pass any two professional concentration exams
- Pass one CCIE lab exam
So according to this, you can simply recertify by passing the ENCORE exam. Alternatively, you can pass only the ENARSI exam and one other concentration exam of the six that are available and you’re done. Or you can simply go for any CCIE exam, and automatically recertify all your professional level certifications. So it’s a little simpler than what you’d hoped, just as long as your certification doesn’t expire, otherwise you must start from scratch.
So if you’re interested in remaining certified, and going for your CCIE, simply go directly for the CCIE and by passing this, you’ll renew all of your existing certifications.
Now that’s a practical approach. If you feel that you need the study time and the learning process involved with going through the professional level exams again, in order to get to your CCIE, then that’s a different story, and that’s something that you will have to determine for yourself.
I hope this has been helpful!