Difference among SNMP support modules for general SNMP-aware devices

["Henrique F. Simoes via Tech-talk" <tech-talk at aps.anl.gov>]

Hi,

We are implementing an IOC for an Aruba switch using SNMPv2. We noticed there
are two SLAC repositories providing a device support for the protocol:

- slac-epics/snmp [1]
- slac-epics/epics-snmp [2]

The former repository seems to be older and it supports more record types [3,
4] than the latter.

The latter has been created on GitHub in 2022 as a fork of a previous version
of the module provided by NSCL/FRIB [5], as far as I could understand. I could
see from NSCL/FRIB documentation that is was focused on some power supply
crates, but it should work for other devices as well.

Does anyone have experience with them and know if there is any other
significant difference among them in 2024 for general SNMP-aware devices?

Digging a little bit in the tech-talk archive, I could see an older thread [6]
asking this same question in 2013, but it seems more forks existed by then.
Most links are dead by now, and I do not know if any of them is still around.

Any recommendation on which module is probably better to base this and our
future SNMP-based IOCs is very welcome.

Best regards,

Henrique F. Simões
Control Software Group (SwC)
Brazilian Synchrotron Light Laboratory (LNLS)
Brazilian Center for Research in Energy and Materials (CNPEM)

[1]: github.com/slac-epics/snmp
[2]: github.com/slac-epics/epics-snmp
[3]: github.com/slac-epics/snmp/blob/134fbfd91ac83974730093330781cd1217017382/devSnmpApp/src/devSnmp.dbd
[4]: github.com/slac-epics/epics-snmp/blob/12a9cfa7b5b07bee17ae8ba7a74b460dd72811e6/snmpApp/src/devSnmp.dbd
[5]: groups.nscl.msu.edu/controls/files/devSnmp.html
[6]: epics.anl.gov/tech-talk/2013/msg00537.php

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