Cisco Professional-level certifications (CCDP, CCNP Cloud, CCNP Collaboration, CCNP Data Center, CCNP Routing and Switching, CCNP Security, CCNP Service Provider, and CCNP Wireless) are valid for three years.
To recertify, pass ONE of the following before the certification expiration date:
When using a higher level of certification to extend other certifications, the expiration date of other certifications will extend to the expiration date of the higher certification (i.e.: If you have one year left on your CCNA certification and you earn a CCIE certification (which has a two-year certification life) then both your CCIE certification and your CCNA certification will expire two years from the date you achieved the CCIE certification).
Visit Cisco site for additional recertification information.