Cisco recertification means that after obtaining a certain certification, you need to take the related exam or training regularly to maintain the validity of the certification. According to Cisco's official regulations, different certification levels and types need to participate in recertification exams or training are different. Cisco certification system in the common several certifications, for example, its corresponding re-certification exams or training are as follows: CCNA (Cisco Certified Network Associate) CCNA certification is valid for three years, the holder can be re-certified through the following ways: through any professional or expert level certification exams; through the CCNA exams, or through the corresponding training to refresh the CCNA certification. CCNP (Cisco Certified Network Professional) CCNP (Cisco Certified Network Professional) CCNP (Cisco Network Professional) CCNP (Cisco Certified Network Professional) CCNP (Cisco Certified Network Professional) CCNP (Cisco Certified Network Professional) CCNP (Cisco Certified Network Professional) CCNP certification is valid for three years, the licensee can be re-certified through the following ways: through any expert level certification exams; through the CCNP core technology exams (350-401 ENCOR) and a special technology exams; through the appropriate training to refresh the CCNP certification.CCIE (Cisco Certified Internetwork Expert) CCIE certification is valid for two years. The licensee can be re-certified through the following ways: through any expert level certification exams; through the CCIE core technical exams and CCIE practical exams; through the appropriate training to refresh the CCIE certification. It should be noted that the Cisco certification system in the re-certification exams or training will vary according to the type of certificate, validity and the country and other factors, it is recommended that the licensee carefully read the relevant provisions and requirements on the official website before the exam, choose the appropriate re-certification path.