Cisco On Plus uses an appliance, the Cisco On Plus 100 Network Agent, installed at the customer premises, to discover network devices & collect data on the network & discovered devices. Through a persistent connection to the Internet, the Cisco On Plus agent transmits this data to a secure data center. The Cisco On Plus 100 Network Agent is small & unobtrusive, & can be activated in minutes. It can be powered by a connection to a Power over Ethernet (Po E) port on a switch or with an external power adapter.