Faisal Khan writes on his blog at www.telecomlighthouse.com  on issues facing service providers on subjects related to SDN, NFV, Virtualization, IP and Optics. He has rich experience, working with multiple service providers and vendors in Middle East and Africa region. Currently, he works for a mobile operator Mobily in Saudi Arabia in technology planning department.  The views expressed in this blog are his own and does not represent the views of his employer.