Four and a half years ago I passed my CCNP exams, and 17 months ago I recertified by passing both the router and switching exams. The goal in doing that was to provide these two tests for pursuing the CCDP cert. Last week I passed the 640-863 CCDA exam, and currently have begun to study for the ARCH exam.
It's my expectations that when I pass the ARCH exam, I will have achieved my CCDP certification. So if in the next year I study for and pass the CCIE R&S exam, will it recertify both my professional exams for a full 3 years? Someone told me that the CCIE written is only good for 18 months unless you take the lab. So if I have no current expectation of taking the lab, could I theoretically take the CCIE written every 3 years, and still maintain my Professional certs?