Arvind Durai is an Advanced Services Technical Leader for Cisco Systems. His primary responsibility for the past twelve years has been to support the company’s major customers, including those in finance, manufacturing, e-commerce, state government, utilities (smart grid networks) and health care. The focus of his work often has been on security, multicast or network virtualization. Durai holds a B.S. in electronics and communication, a M.S. in electrical engineering and a master’s degree in business administration (MBA). He is a coauthor of the Cisco Secure Firewall Services Module and TcL Scripting for Cisco’s Internetwork Operating System (IOS).