EXPRESSION-MIB Download

personEntry

The minimum expExpressionDeltaInterval this system will accept. A system may use the larger values of this minimum to lessen the impact of constantly computing deltas. The value -1 indicates this system will not accept deltaValue as a value for expObject ...

expResourceDeltaWildcardInstanceMaximum

The maximum number of dynamic instance entries this system will support for wildcarded delta objects in expressions. These are the entries that maintain state, one for each instance of each deltaValue object for each value of an expression. A value of 0 i ...

expResourceDeltaWildcardInstances

The number of currently active instance entries as defined for expResourceDeltaWildcardInstanceMaximum.

expResourceDeltaWildcardInstancesHigh

The highest value of expResourceDeltaWildcardInstances that has occurred since initialization of the management system.

expResourceDeltaWildcardInstanceResourceLacks

The number of times this system could not evaluate an expression because that would have created a value instance in excess of expResourceDeltaWildcardInstanceMaximum.

expNameLastChange

The value of sysUpTime the last time an expression was created or deleted or had its name changed using expExpressionName.

expNameHighestIndex

The highest value of ExpressionIndex ever assigned on this system. Preferrably this value is preserved across system reboots. A managed system that is unable to store expressions across reboots need not preserve this value across reboots. If all express ...

expNameTable

A table of expression names, for creating and deleting expressions.

expNameEntry

Information about a single expression. New expressions can be created using expNameStatus. To create an expression first create the named entry in this table. Then use expExpressionIndex to populate expExpressionTable and expObjectTable. For expression ...

expName

The name of the expression. Choosing names with useful lexical ordering supports using GetNext or GetBulk to retrieve a useful subset of the table.

expExpressionIndex

The numeric identification of the expression. Applications may select this number in ascending numerical order by using expNameHighestIndex as a hint or may use any other acceptable, unused number. Once set this value may not be set to a different value.

expNameStatus

The control that allows creation/deletion of entries.

expExpressionTable

A table of expression definitions.

expExpressionEntry

Information about a single expression. An entry appears in this table when an entry is created in expNameTable. Deleting that expNameTable entry automatically deletes this entry and its associated expObjectTable entries. Values of read-write objects in t ...

expExpressionName

The unique name of the expression, the same as expName. Use this object to change the expression's name without changing its expExpressionIndex.

expExpression

The expression to be evaluated. This object is the same as a DisplayString (RFC 1903) except for its maximum length. Except for the variable names the expression is in ANSI C syntax. Only the subset of ANSI C operators and functions listed here is allow ...

expExpressionValueType

The type of the expression value. One and only one of the value objects in expValueTable will be instantiated to match this type. If the result of the expression can not be made into this type, an invalidOperandType error will occur.

expExpressionComment

A comment to explain the use or meaning of the expression.

expExpressionDeltaInterval

Sampling interval for objects in this expression with expObjectSampleType 'deltaValue'. This object is not instantiated if not applicable. A value of 0 indicates no automated sampling. In this case the delta is the difference from the last time the expre ...

expExpressionPrefix

An object prefix to assist an application in determining the instance indexing to use in expValueTable, relieving the application of the need to scan the expObjectTable to determine such a prefix. See expObjectTable for information on wildcarded objects. ...

expExpressionErrors

The number of errors encountered while evaluating this expression. Note that an object in the expression not being accessible is not considered an error. It is a legitimate condition that causes the corresponding expression value not to be instantiated.

expExpressionErrorTime

The value of sysUpTime the last time an error caused a failure to evaluate this expression. This object is not instantiated if there have been no errors.

expExpressionErrorIndex

The 1-based character index into expExpression for where the error occurred. The value zero indicates irrelevance. This object is not instantiated if there have been no errors.

expExpressionError

The error that occurred. In the following explanations the expected timing of the error is in parentheses. 'S' means the error occurs on a Set request. 'E' means the error occurs on the attempt to evaluate the expression either due to Get from expValue ...

expExpressionInstance

The expValueInstance being evaluated when the error occurred. A zero-length indicates irrelevance. This object is not instantiated if there have been no errors.

expExpressionOwner

The entity that configured this entry and is therefore using the resources assigned to it.

expObjectTable

A table of object definitions for each expExpression. Wildcarding instance IDs: It is legal to omit all or part of the instance portion for some or all of the objects in an expression. (See the DESCRIPTION of expObjectID for details. However, note that i ...

expObjectEntry

Information about an object. An application uses expObjectStatus to create entries in this table while in the process of defining an expression. Values of read-create objects in this table may be changed at any time.

expObjectIndex

Within an expression, a unique, numeric identification for an object. Prefixed with a dollar sign ('$') this is used to reference the object in the corresponding expExpression.

expObjectID

The OBJECT IDENTIFIER (OID) of this object. The OID may be fully qualified, meaning it includes a complete instance identifier part (e.g., ifInOctets.1 or sysUpTime.0), or it may not be fully qualified, meaning it may lack all or part of the instance ide ...

expObjectIDWildcard

A true value indicates the expObjecID of this row is a wildcard object. False indicates that expObjectID is fully instanced. If all expObjectWildcard values for a given expression are FALSE, expExpressionPrefix will reflect a scalar object (ie will be 0. ...

expObjectSampleType

The method of sampling the selected variable. An 'absoluteValue' is simply the present value of the object. A 'deltaValue' is the present value minus the previous value, which was sampled expExpressionDeltaInterval seconds ago. This is intended primarily ...

expObjectDeltaDiscontinuityID

The OBJECT IDENTIFIER (OID) of a TimeTicks or TimeStamp object that indicates a discontinuity in the value at expObjectID. This object is not instantiated if expObject is not 'deltaValue'. The OID may be for a leaf object (e.g. sysUpTime.0) or may be wild ...

expObjectDiscontinuityIDWildcard

A true value indicates the expObjectDeltaDiscontinuityID of this row is a wildcard object. False indicates that expObjectDeltaDiscontinuityID is fully instanced. This object is not instantiated if expObject is not 'deltaValue'. NOTE: The simplest implem ...

expObjectDiscontinuityIDType

The value 'timeTicks' indicates the expObjectDeltaDiscontinuityID of this row is of syntax TimeTicks. The value 'timeStamp' indicates that expObjectDeltaDiscontinuityID is of syntax TimeStamp. This object is not instantiated if expObject is not 'deltaVal ...

expObjectConditional

The OBJECT IDENTIFIER (OID) of an object that overrides whether the instance of expObjectID is to be considered usable. If the value of the object at expObjectConditional is 0 or not instantiated, the object at expObjectID is treated as if it is not inst ...

expObjectConditionalWildcard

A true value indicates the expObjectConditional of this row is a wildcard object. False indicates that expObjectConditional is fully instanced. NOTE: The simplest implementations of this MIB may not allow wildcards.

expObjectStatus

The control that allows creation/deletion of entries. Objects in this table may be changed while expObjectStatus is in any state.

expValueTable

A table of values from evaluated expressions.

expValueEntry

A single value from an evaluated expression. For a given instance, only one 'Val' object in the conceptual row will be instantiated, that is, the one with the appropriate type for the value. For values that contain no objects of expObjectSampleType 'del ...

expValueInstance

The final instance portion of a value's OID according to the wildcarding in instances of expObjectID for the expression. The prefix of this OID fragment is 0.0, leading to the following behavior. If there is no wildcarding, the value is 0.0.0. In other ...

expValueCounter32Val

The value when expExpressionValueType is 'counter32'.

expValueUnsigned32Val

The value when expExpressionValueType is 'unsignedOrGauge32' or 'timeTicks'.

expValueInteger32Val

The value when expExpressionValueType is 'integer32'.

expValueIpAddressVal

The value when expExpressionValueType is 'ipAddress'.

expValueOctetStringVal

The value when expExpressionValueType is 'octetString'.

expValueOidVal

The value when expExpressionValueType is 'objectId'.

expValueCounter64Val

The value when expExpressionValueType is 'counter64'.

expressionResourceGroup

Expression definition resource management.

expressionDefinitionGroup

Expression definition resource management.

expressionValueGroup

Expression definition resource management.