When the device is modeled as GnSNMPDev serial number is populated but the Manufacturer field is empty.
When the device is modeled as Rtr_Cisco the serial number is empty.
Release : ALL
Component : Spectrum Core / SpectroSERVER
The deviceSerialAttr/0x3d0063 by default points to the chasisid/0x210b5d attribute for the serial number value. In some cases, the chassisid OID on the device is not correctly populated.
deviceSerialAttr/0x3d0063 Value: 0x210b5d
chassisid/0x210b5d OID: 188.8.131.52.184.108.40.206.6.3.0
1. Fix the device-level issue so chasisid attribute (0x210b5d) is populated (Recommended Solution).
2. Change DeviceSerialAttr atribute value to 0x0 and reconfigure the model and Spectrum will try and obtain the Serial number from the ENTITY-MIB