[SNMP4J] Handling Requests Where Data Is Unavailable, or Error Handling

[Frank Fock]

Hi,

According to the SNMP standard GETNEXT (and also GET) request should not 
return
errors (an error status).
Instead GETNEXT should skip unaccessible objects and GET should return a 
noSuchInstance
exception (or noSuchObject if the object is not supported at all).

Thus, the best way would be to temporaly set the access of non available 
objects to NOACCESS.
The rest would then do SNMP4J-Agent.

If you really want to return an error, you may return genErr or 
resourceUnavailable.

Best regards,
Frank


Am 15.11.2013 15:29, schrieb m k:
> Hello,
>
> In our project, there is a possibility that certain resources may become unavailable, limiting the values we can offer for polling. Rather than return a cached value or a default value that may mislead the user into thinking this is the "real" data, we'd prefer to let them now that the resource can't be retrieved presently. Is there a good way to do this in SNMP4J? I've noticed the protocol supports a "General SNMP Error", is there a way to deliver this when a value cannot be polled?
>
>    Regardless, if the above approach is not feasible, then is there a standard practice (sending some default values, etc.)?
>
> Thank you
>   		 	   		
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