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3/22/2024
Smart Assurance - SMARTS
No affected releases provided.
No fixed releases provided.
After Smarts IP discovery for a certified device, an expected entity is not discovered within the device After Smarts IP discovery for a Cisco 3750 device, there is no Fan or Power Supply discovered within the device Device is certified in Smarts IP for specific entity Availability or performance monitoring, and the entity is available in the device, but the entity is not being discovered or monitored in the device
The environment contains Restricted MIBs. The absence of an expected entity (such as the Fan and Power Supply in the above problem symptom) can be caused by the MIB being restricted at the device level, which can impact Smarts IP discovery.Restricted MIBsRestricted MIBs are used in some locations for security purposes so that only a limited MIB is available to be polled from a device. For the Cisco 3750 Router device mentioned in the above problem symptom (SysOID .1.3.6.1.4.1.9.1.544), the Fan is created from FanState OID .1.3.6.1.4.1.9.9.13.1.4.1.3, while the power supply is created from PowerSupply OID .1.3.6.1.4.1.9.9.13.1.5.1.3.If you looked in the SNMP walk file of the device where the MIB has been restricted for these entities as in the following example, you would see that neither of these OIDs are present:ASL File: ic-cisco-router-health.aslciscoEnvMonFanDescrOID { ciscoMIBOID ".9.13.1.4.1.2" }ciscoEnvMonFanStateOID { ciscoMIBOID ".9.13.1.4.1.3" }ciscoEnvMonSupplyDescrOID { ciscoMIBOID ".9.13.1.5.1.2" }ciscoEnvMonSupplyStateOID { ciscoMIBOID ".9.13.1.5.1.3" }
To resolve this issue, you must allow the required OIDs to be polled at the device level.