we have a couple of 3750Gs and sveral 3650Gs in my company lan, and I'm looking for the SNMP OIDs supported with which the very basic status of these switches can be retrieved. I mean generic status like the switch is being active, or experiencing technical error etc...
I was advised to take 220.127.116.11.18.104.22.168.0 (IPForwarding), but I'm not sure if it is the right one. I'd appreciate if someone can give me a hint..
Your request is pretty generic. There are a lot of OIDs which can provide device health. You might want to start with ifInOctets, ifOutOctets, ifInErrors, and ifOutErrors. Those will give you per-port byte and error counts in both the ingress and egress directions.
As for whole-device help, take a look at the moduleTable from the CISCO-STACK-MIB. The object moduleStatus will tell you the status of the fixed switch itself.