Serial number for certain Cisco devices is not always populated in Spectrum

Document ID : KB000020547
Last Modified Date : 14/02/2018
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Description:

Occasionally for some Cisco devices Spectrum displays the Serial Number field as empty even though the serial number is available in the mib.

Solution:

Spectrum by default gets Serial information from DeviceSerialAttr attribute 0x3d0063

It points to attribute 0x210b5d ChassisId:

ChassisId 0x210b5d Text String 1.3.6.1.4.1.9.3.6.3.0

1.3.6.1.4.1.9.3.6.3.0 is included in OLD-CISCO-CHASSIS-MIB

For some Cisco devices a serial number could be populated in another way.

Set attribute DeviceSerialAttr 0x3d0063 to point to attribute 0x12a6e NRM_ChassisSerialNumber.

Right click on the device and choose reconfigure model.