roy zhang wrote:
                   Hi there, quick question, can I login to cisco website and chech if my devices have smartnet assoicated wiith it. we have purchase smartnet from Dimension Data, and I would like to check myself for those device have purchased Smartnet. thanks,   Roy

You should have been provided a contract number. You can logon to the Cisco web site and register the contract number, which will show you which serial numbers are covered.

Start here

http://www.cisco.com/web/applicat/spptauth/serviceaccessmgmt.html

and see how you go.

Cheers.