docsPnmCmtsUsOfdmaAQProbeFileName
DOCS-PNM-MIB ·
.1.3.6.1.4.1.4491.2.1.27.1.3.3.1.11
Object
This attribute is the name of the file, with the captured probe data,
at the CMTS that is to be downloaded using TFTP to the PNM server.
This value can only be changed while a test is not in progress. An attempt
to set this value while the value of 'docsPnmCmtsUsOfdmaAQProbeMeasStatus'
is 'busy' will return 'inconsistentValue'.
If the value of this object is the DEFVAL (empty string), then a default
filename value will be used. Otherwise the value set will be used as
the filename.
If a default filename value is used, it is generated as the test name
plus a unique CCAP identifier (either a loopback address (IPv4 or IPv6)
or FQDN), plus the 'epoch time'. The epoch time (also known as 'unix time')
is defined as the number of seconds that have elapsed since midnight
Coordinated Universal Time (UTC), Thursday, 1 January 1970.
Hence, the format would be:
PNMCcapAQProbe_<Unique CCAP Identifier>_<epoch>
For example: PNMCcapAQProbe_cap1.boulder.cablelabs.com_1403405123
The data file is comprised of a header plus the Probe Capture Data.
The header is comprised of ordered fixed-length fields. Unless
otherwise specified, the header fields contain hex values that are
right-justified within the field. If necessary the field is left-padded
with zero values.
Syntax of the file is as follows:
File Type set to '504E4D66' (without the quotes) 4 bytes
Capture Time 4 bytes
ifIndex 4 bytes
Unique CCAP ID 256 bytes
Subcarrier zero frequency in Hz 4 bytes
Subcarrier Spacing in kHz 1 byte
Length in bytes of Excluded Subcarrier data 4 bytes
Excluded subcarrier data ExclSubCarrierType
Length in bytes of Probe Capture data 4 bytes
Probe Capture data CompexData
Context
- MIB
- DOCS-PNM-MIB
- OID
.1.3.6.1.4.1.4491.2.1.27.1.3.3.1.11- Type
- column
- Access
- readwrite
- Status
- current
- Parent
- docsPnmCmtsUsOfdmaAQProbeEntry
- Table
- docsPnmCmtsUsOfdmaAQProbeTable
- Siblings
- 10
Syntax
SNMP-FRAMEWORK-MIBSnmpAdminString
- Source
- SNMP-FRAMEWORK-MIBSnmpAdminString
- Base type
OctetString
Values & Constraints
Type Constraints
range: 0..255
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| docsPnmCmtsUsOfdmaAQProbeCmMacAddr This attribute represents the MAC address of the CM transmitting the
probe to be measured.
This object cannot be changed while a capture is in progress. It will
ret… | column | SNMPv2-TCMacAddress | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.1 |
| docsPnmCmtsUsOfdmaAQProbeMeasStatus This attribute is used to determine the status of the measurement.
When the Status = 'SampleReady', the CCAP has completed the measurement
and the Enable attribute has been cleare… | column | MeasStatusType | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.10 |
| docsPnmCmtsUsOfdmaAQProbeUseIdleSid This attribute, when enabled, causes the CMTS to measure the channel
during a quiet period when no CM is transmitting.
This object cannot be changed while a capture… | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.2 |
| docsPnmCmtsUsOfdmaAQProbePreEqOn This attribute, when enabled, causes the CMTS to enable
pre-equalization in the Probe Information Element for the CM
transmitting the probe to be measured.
This obj… | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.3 |
| docsPnmCmtsUsOfdmaAQProbeEnable This attribute causes the CMTS to begin the measurement of a probe for
the selected CM or for a quiet period if the UseIdleSid attribute is
enabled. The Enable attribute is cleare… | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.4 |
| docsPnmCmtsUsOfdmaAQProbeTimeout This attribute provides a timeout for the measurement if the CMTS is
unable to perform the measurement for some reason. A value of zero for
the Timeout attribute means that the me… | column | seconds Unsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.5 |
| docsPnmCmtsUsOfdmaAQProbeNumSymToCapt This object represents the number of symbols the CMTS is to capture
for the modem whose probe is being measured or the number of symbol
times to measure for the idle Sid.
… | column | symbols Unsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.6 |
| docsPnmCmtsUsOfdmaAQProbeMaxCaptSymbols This object represents the number of symbols the CMTS can capture for
one measurement. Typically for a 50kHz Subcarrier Spacing the CMTS can
capture two symbols and for 25kHz, the… | column | Unsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.7 |
| docsPnmCmtsUsOfdmaAQProbeNumSamples This object represents the number of FFT samples used for the
measurement. | column | samples Unsigned32 | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.8 |
| docsPnmCmtsUsOfdmaAQProbeTimeStamp This object represents the timestamp corresponding to the time when the
measurement was performed. In the case in which the Primary Downstream
is an OFDM channel this is the 64 bi… | column | OctetString | .1.3.6.1.4.1.4491.2.1.27.1.3.3.1.9 |