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Nokia Network Voyager for IPSO 4.0 Reference Guide 261
Note
You might not see the codes. The SNMP manager or utility interprets the codes and displays
and logs the appropriate message.
The subsequent, or fourth field, contains the error index when the error-status field is nonzero,
that is, when the error-status field returns a value other than zero, which indicates that an error
occurred. The error-index value identifies the variable, or object, in the variable-bindings list
that caused the error. The first variable in the list has index 1, the second has index 2, and so on.
The next, or fifth field, is the variable-bindings field. It consists of a sequence of pairs; the first is
the identifier. The second element is one of the following five: value, unSpecified,
noSuchOjbect, noSuchInstance, and EndofMibView. The following table describes each
element.
GetRequest
The following table lists possible value field sets in the response PDU or error-status messages
when performing a GetRequest.
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Error status code Meaning Error status code Meaning
Variable-bindings
element Description
value Value associated with each object instance; specified in a PDU request.
unSpecified A NULL value is used in retrieval requests.
noSuchObject Indicates that the agent does not implement the object referred to by this object
identifier
noSuchInstance Indicates that this object does not exist for this operation.
endOfMIBView Indicates an attempt to reference an object identifier that is beyond the end of the
MIB at the agent.
Value Field Set Description
noSuchObject If a variable does not have an OBJECT IDENTIFIER prefix that exactly matches the
prefix of any variable accessible by this request, its value field is set to noSuchObject.
noSuchInstance If the variable's name does not exactly match the name of a variable, its value field is
set to noSuchInstance.