Venu,
From the screenshot, it shows that there is no source set to get the values for cpu/memory. Seems like this device is not certified for performance tab at this point of time.
I would rather raise a cert request with CA Support and follow the below work around for now
i) Get the object id which holds the cpu information in the mib
ii) Get a customer mib and compile in Spectrum which holds value for cpu/memory.
iii) Get the oid's from the mib holding these values
iV) Mib tools -> map tab --> Filter for these oid's and map them to an attribute. Make a note of the custom attribute id.
V) Select and reconfigure the brocade model . The attributes tab reflects this new attribute and the value for cpu or memory
VI ) Now filter for NRM_CPUUtilAttr and give the attribute id of custom attribute here. Reconfigure the model. Now look for the attribute nrmdevice cpu utlization / nrmdevice memory utlization and look for the values.
Follow the modelling infrastructure guide page no 197 for more information
Kalyan