Is is possible for snmpcollector to get access to an snmp-enabled device, but no metrics appear in OC or the database.
The following are some reasons that snmpcollector could connect to a device but not collect metrics:
2. This could also be a vendor certification problem.
In other words, snmpcollector does not have the correct MIBs to talk to on this device.
3. The target device is too busy to answer.
The management interface on most snmp devices is designed to give management traffic very low priority. Having said this, it is uncommon for metrics to be missed for more than one or two polling cycles.
4. This behavior has been observed when snmpcollector was unable to pull metrics from certain devices when it had some local memory issues.
The snmpcollector VM was configured to use dynamically assigned memory. When the VM was given dedicated memory, this problem was resolved.
For more information on performance tuning snmpcollector please refer to the following knowledge article: