docsPnmCmDsHistSymmetry
DOCS-PNM-MIB ·
.1.3.6.1.4.1.4491.2.1.27.1.2.9.1.4
Object
This attribute is used to indicate whether 256 or 255 bins were used
for the measurement.
Even Symmetry = 'false' (default):
The histogram has even symmetry about the origin. There is no bin center
lying directly at the origin; rather, two bin centers straddle the origin
at 0.5. All bins with indices 0-255 contain valid hit-count data.
The histogram bin centers are offset from the corresponding 8-bit
twos-complement integer values by 1/2, that is, bin center = twos complement
value + 0.5.
Odd Symmetry = 'true':
The histogram has odd symmetry about the origin. There is a bin center
lying at the origin. The bin with index 0 is not used and returns the
value 0. The bins with indices 1 to 255 contain valid hit-count data.
The histogram bin centers are located on the corresponding 8-bit
twos-complement integer values.
The following table shows the defined histogram bin centers for the
cases of even and odd symmetry.
Bin Bin Center Bin Center
Index Even Symmetry Odd Symmetry
0 -127.5 Bin not used
1 -126.5 -127
2 -125.5 -126
... ... ...
127 -0.5 -1
128 0.5 0
129 1.5 1
... ... ...
253 125.5 125
254 126.5 126
255 127.5 127
This object cannot be changed while a capture is in progress. It will
return a value of 'inconsistentValue' if set while the value of
'docsPnmCmDsHistMeasStatus' is set to a value of 'busy'.
Context
- MIB
- DOCS-PNM-MIB
- OID
.1.3.6.1.4.1.4491.2.1.27.1.2.9.1.4- Type
- column
- Access
- readwrite
- Status
- current
- Units
- Bins
- Parent
- docsPnmCmDsHistEntry
- Table
- docsPnmCmDsHistTable
- Siblings
- 9
Values & Constraints
Type Values
1 | true |
2 | false |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| docsPnmCmDsHistEnable Setting this object to a value of 'true' instructs the CM to begin
collection of histogram data and when enabled, the CM continues
producing new data at its own rate.
… | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.1 |
| docsPnmCmDsHistFileName This object is the name of the file at the CM which is to be
transferred to the PNM server. The data is stored as 32 bit integers
for the hit and dwell count values.
… | column | SNMP-FRAMEWORK-MIBSnmpAdminString | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.10 |
| docsPnmCmDsHistRestart This attribute is used to restart collection of histogram data.
If 'docsPnmCmDsHistEnable' is 'true' then setting this object to
'true' clears the old data and starts collecting a… | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.2 |
| docsPnmCmDsHistTimeOut This object sets a seconds time-out timer for capturing histogram data.
When the timeout expires the 'docsPnmCmDsHistEnable' object will be set to
'false' and the c… | column | seconds Unsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.3 |
| docsPnmCmDsHistDwellCnts This attribute represents the total number Dwell Counts for each
bin for the Current capture. If the dwell count for all bins is the
same then only a single value is reported. The… | column | OctetString | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.5 |
| docsPnmCmDsHistHitCnts This attribute represents the total number Hit Counts for each bin
for the Current capture. If odd symmetry is used then there will be 255 bins.
The value for each bin is reported… | column | OctetString | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.6 |
| docsPnmCmDsHistCntStartTime This attribute represents the time when the collection of
histogram data was started.
This value is the 'epoch time'. The epoch time (also known as
'unix time') is … | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.7 |
| docsPnmCmDsHistCntEndTime This attribute represents the time when the collection of
histogram data was stopped.
This value is the 'epoch time'. The epoch time (also known as
'unix time') is … | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.8 |
| docsPnmCmDsHistMeasStatus This attribute is used to determine the status of the measurement.
The PNM server will query this value to determine when the file
is ready for transfer. | column | MeasStatusType | .1.3.6.1.4.1.4491.2.1.27.1.2.9.1.9 |