Re-install stock Net-SNMP?

Apologies in advance if this has been answered. What is the exact procedure to reset Net-SNMP to "factory defaults" on, say, OSX 10.10 - or any other OSX flavor? A number of our Xserves were upgraded from 10.6 to 10.8 to 10.9 or 10.10 and in the process appear to have their Net-SNMP executables and/or configuration corrupted - e.g. snmpd daemons crashing frequently, not reporting CPU/mem loads, etc. Tried comparing folder structures between affected and unaffected nodes and haven't gotten too far. **Edit**: just to be clear, this isn't about snmpd.conf - but about snmp executables, MIBs and what not. Appreciate any ideas!