The syntax for adding a new attribute to an existing ICIM class is:

refine interface <ICIM_class_name>
<attribute declarations>

The following example adds the stored attribute SM_SerialNumber to the existing Router class.

refine interface Router
 stored attribute string SM_SerialNumber
 “Custom serial number stored in the Cisco”
 “chassis-id MIB (.”
 = “NotAvailable”;

For more information about attribute declarations and valid data types, see the VMware Smart Assurance MODEL Reference Guide.