DISMAN-EXPRESSION-MIB Table View

Table-centric layout grouping table, row, and column objects.

Tables
4
Rows
4
Columns
32
.1.3.6.1.2.1.90.1.2.1 · 1 row entry · 9 columns
A table of expression definitions.
expExpressionEntry entry .1.3.6.1.2.1.90.1.2.1.1
Information about a single expression. New expressions
can be created using expExpressionRowStatus.

To create an expression first create the named entry in this
table. Then use expExpressionName to popula…
Indexes
expExpressionOwner expExpressionName
Column Syntax OID
expExpressionOwner
The owner of this entry. The exact semantics of this
string are subject to the security policy defined by the
security administrator.
OctetString
Constraints:
range: 0-32
.1.3.6.1.2.1.90.1.2.1.1.1
expExpressionName
The name of the expression. This is locally unique, within
the scope of an expExpressionOwner.
OctetString
Constraints:
range: 1-32
.1.3.6.1.2.1.90.1.2.1.1.2
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 …
OctetStringr/w
Constraints:
range: 1-1024
.1.3.6.1.2.1.90.1.2.1.1.3
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 invali…
Enumerationr/w
Enumerated Values:
1counter32
2unsigned32
3timeTicks
4integer32
5ipAddress
6octetString
7objectId
8counter64
.1.3.6.1.2.1.90.1.2.1.1.4
expExpressionComment
A comment to explain the use or meaning of the expression.
SNMP-FRAMEWORK-MIBSnmpAdminStringr/w
Textual Convention: SNMP-FRAMEWORK-MIBSnmpAdminString OctetString
Type Constraints:
range: 0..255
.1.3.6.1.2.1.90.1.2.1.1.5
expExpressionDeltaInterval
Sampling interval for objects in this expression with
expObjectSampleType 'deltaValue'.

This object has no effect if the the expression has no
deltaValue objects.

A value of 0 indicates no …
secondsInteger32r/w
Constraints:
range: 0-86400
.1.3.6.1.2.1.90.1.2.1.1.6
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 exp…
ObjectIdentifier .1.3.6.1.2.1.90.1.2.1.1.7
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. An example of an inaccessible
object is when the …
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.90.1.2.1.1.8
expExpressionEntryStatus
The control that allows creation and deletion of entries.
SNMPv2-TCRowStatusr/w
Textual Convention: SNMPv2-TCRowStatus Enumeration
Type Values:
1active
2notInService
3notReady
4createAndGo
5createAndWait
6destroy
.1.3.6.1.2.1.90.1.2.1.1.9
.1.3.6.1.2.1.90.1.2.2 · 1 row entry · 4 columns
A table of expression errors.
expErrorEntry entry .1.3.6.1.2.1.90.1.2.2.1
Information about errors in processing an expression.

Entries appear in this table only when there is a matching
expExpressionEntry and then only when there has been an
error for that expression as reflecte…
Indexes
expExpressionOwner expExpressionName
Column Syntax OID
expErrorTime
The value of sysUpTime the last time an error caused a
failure to evaluate this expression.
SNMPv2-TCTimeStamp
Textual Convention: SNMPv2-TCTimeStamp Unsigned32
.1.3.6.1.2.1.90.1.2.2.1.1
expErrorIndex
The one-dimensioned character array index into
expExpression for where the error occurred. The value
zero indicates irrelevance.
SNMPv2-SMIInteger32
Textual Convention: SNMPv2-SMIInteger32 Integer32
Type Constraints:
range: -2147483648..2147483647
.1.3.6.1.2.1.90.1.2.2.1.2
expErrorCode
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 eval…
Enumeration
Enumerated Values:
1invalidSyntax
2undefinedObjectIndex
3unrecognizedOperator
4unrecognizedFunction
5invalidOperandType
6unmatchedParenthesis
7tooManyWildcardValues
8recursion
9deltaTooShort
10resourceUnavailable
11divideByZero
.1.3.6.1.2.1.90.1.2.2.1.3
expErrorInstance
The expValueInstance being evaluated when the error
occurred. A zero-length indicates irrelevance.
ObjectIdentifier .1.3.6.1.2.1.90.1.2.2.1.4
.1.3.6.1.2.1.90.1.2.3 · 1 row entry · 10 columns
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
if more than one object in the same expression is wildcarded
in this way, they all must be objects where that portion of
the instance is the same.  In other words, all objects may be
in the same SEQUENCE or in different SEQUENCEs but with the
same semantic index value (e.g., a value of ifIndex)
for the wildcarded portion.
expObjectEntry entry .1.3.6.1.2.1.90.1.2.3.1
Information about an object. An application uses
expObjectEntryStatus to create entries in this table while
in the process of defining an expression.

Values of read-create objects in this table may be
chan…
Indexes
expExpressionOwner expExpressionName expObjectIndex
Column Syntax OID
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.
Unsigned32
Constraints:
range: 1-4294967295
.1.3.6.1.2.1.90.1.2.3.1.1
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 …
ObjectIdentifierr/w .1.3.6.1.2.1.90.1.2.3.1.2
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 ref…
SNMPv2-TCTruthValuer/w
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
.1.3.6.1.2.1.90.1.2.3.1.3
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 e…
Enumerationr/w
Enumerated Values:
1absoluteValue
2deltaValue
3changedValue
.1.3.6.1.2.1.90.1.2.3.1.4
expObjectDeltaDiscontinuityID
The OBJECT IDENTIFIER (OID) of a TimeTicks, TimeStamp, or
DateAndTime object that indicates a discontinuity in the value
at expObjectID.

This object is instantiated only if expObjectSampleType is
'deltaVa…
ObjectIdentifierr/w .1.3.6.1.2.1.90.1.2.3.1.5
expObjectDiscontinuityIDWildcard
A true value indicates the expObjectDeltaDiscontinuityID of
this row is a wildcard object. False indicates that
expObjectDeltaDiscontinuityID is fully instanced.

This object is instantiated only if expOb…
SNMPv2-TCTruthValuer/w
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
.1.3.6.1.2.1.90.1.2.3.1.6
expObjectDiscontinuityIDType
The value 'timeTicks' indicates the expObjectDeltaDiscontinuityID
of this row is of syntax TimeTicks. The value 'timeStamp' indicates
syntax TimeStamp. The value 'dateAndTime indicates syntax
DateAndTime.
Enumerationr/w
Enumerated Values:
1timeTicks
2timeStamp
3dateAndTime
.1.3.6.1.2.1.90.1.2.3.1.7
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 expObje…
ObjectIdentifierr/w .1.3.6.1.2.1.90.1.2.3.1.8
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…
SNMPv2-TCTruthValuer/w
Textual Convention: SNMPv2-TCTruthValue Enumeration
Type Values:
1true
2false
.1.3.6.1.2.1.90.1.2.3.1.9
expObjectEntryStatus
The control that allows creation/deletion of entries.

Objects in this table may be changed while
expObjectEntryStatus is in any state.
SNMPv2-TCRowStatusr/w
Textual Convention: SNMPv2-TCRowStatus Enumeration
Type Values:
1active
2notInService
3notReady
4createAndGo
5createAndWait
6destroy
.1.3.6.1.2.1.90.1.2.3.1.10
.1.3.6.1.2.1.90.1.3.1 · 1 row entry · 9 columns
A table of values from evaluated expressions.
expValueEntry entry .1.3.6.1.2.1.90.1.3.1.1
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…
Indexes
expExpressionOwner expExpressionName expValueInstance
Column Syntax OID
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 ther…
ObjectIdentifier .1.3.6.1.2.1.90.1.3.1.1.1
expValueCounter32Val
The value when expExpressionValueType is 'counter32'.
SNMPv2-SMICounter32
Textual Convention: SNMPv2-SMICounter32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.90.1.3.1.1.2
expValueUnsigned32Val
The value when expExpressionValueType is 'unsigned32'.
SNMPv2-SMIUnsigned32
Textual Convention: SNMPv2-SMIUnsigned32 Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.90.1.3.1.1.3
expValueTimeTicksVal
The value when expExpressionValueType is 'timeTicks'.
SNMPv2-SMITimeTicks
Textual Convention: SNMPv2-SMITimeTicks Unsigned32
Type Constraints:
range: 0..4294967295
.1.3.6.1.2.1.90.1.3.1.1.4
expValueInteger32Val
The value when expExpressionValueType is 'integer32'.
SNMPv2-SMIInteger32
Textual Convention: SNMPv2-SMIInteger32 Integer32
Type Constraints:
range: -2147483648..2147483647
.1.3.6.1.2.1.90.1.3.1.1.5
expValueIpAddressVal
The value when expExpressionValueType is 'ipAddress'.
SNMPv2-SMIIpAddress
Textual Convention: SNMPv2-SMIIpAddress OctetString
Type Constraints:
range: 4
.1.3.6.1.2.1.90.1.3.1.1.6
expValueOctetStringVal
The value when expExpressionValueType is 'octetString'.
OctetString
Constraints:
range: 0-65536
.1.3.6.1.2.1.90.1.3.1.1.7
expValueOidVal
The value when expExpressionValueType is 'objectId'.
ObjectIdentifier .1.3.6.1.2.1.90.1.3.1.1.8
expValueCounter64Val
The value when expExpressionValueType is 'counter64'.
SNMPv2-SMICounter64
Textual Convention: SNMPv2-SMICounter64 Unsigned64
Type Constraints:
range: 0..18446744073709551615
.1.3.6.1.2.1.90.1.3.1.1.9