Hey, may you also add device support for some Zyxel xDSL Switches? Currently only standard interfaces information are fetched and non sensors or any other health information. The xDSL information are also missing. The attached MIB files should work for the 5k and 6k series. I also attached a full snmpwalk from every device model mentioned in case summary.
First I only added snmpwalk for ".1" OID tree. Some devices quit replying after minutes. Let me know which OID tree exactly you need from which device and I will try to collect the output.