[AGENT++] Help implementing common oids

[Frank Fock]

With AGENT++ you can easily implement both, built-in instrumentation as well as AgentX sub-agent implementations. The latter requires AgentX++ on top of AGENT++, but the interface to is nearly 100% the same. Except shared tables are only available in AgentX++, but those are not needed for a monolithic agent.

Using AgentX without need will increase complexity (and costs). AgentX, however, will provide more flexibility to integrate different modules or third-party products. 


> On 27. Sep 2017, at 08:54, rinn2883 <rinn2883 at mail.com> wrote:
> 
> I understand. I just thought i mustn't be the first to do these common oids for linux and agent++
> and that somebody on the mailing list could help me out and share their code.
> 
> Also I'm not really certain if it is better to implement the custom oids into the agent itself,
> or by using the agentX protocol?
> 
> 
> On 2017-09-26 20:30, Frank Fock wrote:
>> Hi,
>> 
>> AGENT++ does not include hardware specific MIB object implementations, because that would require all that hardware for testing. Nevertheless, there are a few examples. See the IF-MIB implementation you can find in the AgentX++ subagent examples.
>> 
>> MIB specifications are only needed at programming time (e.g. for stub code generation). The are not needed at runtime.
>> 
>> The implementation of the system group (including sysDescr) can be found in system_group.cpp
>> 
>> 
>> Best regards,
>> Frank
>> 
>>> On 26. Sep 2017, at 12:30, rinn2883 <rinn2883 at mail.com> wrote:
>>> 
>>> Hi
>>> 
>>> I want to provide some common oids (cpu, memory, iterfaces) from a linux system
>>> and extend it with some custom oids to read gios.
>>> 
>>> The examples are rather complex for a novice.
>>> Just an example with SNMPv3 and sysDescr would be nice :-D haha.
>>> SNMP has been around for a long time, so do I have to implement these common oids myself?
>>> Or can I get them somewhere?
>>> I already have the MIBs, I'm talking more about the agent++ implementation for them.
>>> I believe if I can look at the implementation of the common oids, i can figure out how to do
>>> the gpio oids myself.
>>> 
>>> One other small question. I think i don't need the MIB on the embedded machine?
>>> The MIB is more for clients, so that they know what data they are getting.
>>> The embedded device has only 40MB of space and I dont want to add the MIBs if I
>>> don't have to.
>>> 
>>> Kind regards
>>> 
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>