Enhanced Power over Ethernet: Easier Deployment and Improved Mobility
Feb 11, 2008By Cisco Systems
As the network has become an integral part of the enterprise and small- to medium-sized business, new applications have added new devices onto the network infrastructure. From IP telephony clients to new IEEE 802.11n wireless access points, the requirement to provide increasing levels of power to network end devices has grown dramatically. Cisco® was the first to develop the capability of providing power network end-points when it enabled power from an Ethernet switch port to its Cisco IP phone. From there, Cisco began work with numerous other vendors within the IEEE to create a standards-based means of providing Power over Ethernet (PoE). PoE is now a widely adopted IEEE 802.3af standard. Cisco Enhanced PoE is Cisco’s extension to the IEEE 802.3af standard that supplies greater amounts of power per port. By expanding its PoE support to deliver more than 15.4 watts (W) per port, Cisco offers greater flexibility and mobility to users while offering greater operational manageability to network managers.






2012: Networks evolved from a connectivity service to a platform with embedded security, application delivery, quality of service, virtualization being systemic in corporate networking 