ifType showing as integer instead of string i.e not honoring translations as per the MIBs when custom snmp masks are added to SNMP collector manager. For example, ifType showing as 6 instead of ethernetCsmacd. PFB screenshot for reference from MODB:
Watch4net|M&R - 7.7
Described behavior occurs when loading MIBs that redefine or augment the ifTable.
<mib-file-name>
element for those masks causing this issue and restart the SNMP collector. For example:
<mib-files>
<!-- <mib-file-name>FORTINET-FORTIGATE-MIB.mib</mib-file-name> -->
</mib-files>
NOTE: The RFC1213-MIB is loaded by default, and referencing MIB files in masks is optional. Below is the screenshot from APG-SNMP-Collector-Admin-Guide.pdf