If you do not know the URL to access the WBEM service of the CIMOM on the ESXi machine, or if you do not know the namespace, use SLP to discover the service and the namespace before your client makes a connection to the CIMOM.
SLP-compliant services attached to the same subnet respond to a client SLP query with a Service URL and a list of service attributes. The Service URL returned by the WBEM service begins with the service type service:wbem:https:// and follows with the domain name and port number to connect to the CIMOM.
Among the attributes returned to the client is InteropSchemaNamespace. The value of this attribute is the name of the Interop namespace.
For more information about SLP, see the following links: