CRCErrors metric is not available in snmpcollector

Document ID : KB000117997
Last Modified Date : 23/10/2018
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Issue:
CRCErrors metric used to be collected for device 'Brocade Fibre Channel Switch 5300', but for no apparent reason it stopped working and it is no longer in the list of available metrics for Fibre Channel in snmpcollector.
Environment:
UIM 8.51
snmpcollector 3.41 and above
DCD 2.10
Cause:
The CRCErrors metric has changed in DCD 2.10:
 
swFCPortRxCrcs    1.3.6.1.4.1.1588.2.1.1.1.6.2.1.22 
CRCErrors = fcFxPortInvalidCrcs

After an issue with snmpcollector the probe got redeployed and it caused the metric to stop collecting.
Resolution:
Whenever the snmpcollector probe is redeployed the DCD package (Device_Certification_Deployer) needs to be redeployed as well because the snmpcollector redeployment overwrites the DCD package files.