Hi,
Smartports Advisor is an embedded tool that discovers devices connected in the network and recommends appropriate Cisco best practice configurations for security, availability, and QoS features on switch ports. This feature saves time by proactively recommending Cisco best practices and removes the need for network administrators to consult detailed design guides or documentation. Cisco Smartports technology saves time for network administrators, avoids human error, and ensures the configuration of the switch, router, or access point is optimized for these applications.
Also check this site for more details
http://www.cisco.com/en/US/products/ps5931/products_data_sheet0900aecd8034fbf1.html
HTH,
Thanks
Raj