docsPnmCmUsPreEqLastUpdateFileName

DOCS-PNM-MIB · .1.3.6.1.4.1.4491.2.1.27.1.2.10.1.9

Object

column r/w SNMP-FRAMEWORK-MIBSnmpAdminString

This attribute is the name of the file at the CM which is to be
transferred to the PNM server. The data represents the values sent
to the CM by the CMTS in the last RNG-RSP that contained
Pre-Equalization updates and is stored as 16 bit integers for the I
and Q data.
              
This object cannot be changed while a file generation is in progress.
It will return a value of 'inconsistentValue' if set while the value of
'docsPnmCmUsPreEqMeasStatus' is set to a value of 'busy'.
              
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 the CM MAC Address 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:
              
    PNMUsPreEqLastUpdate_<CM MAC address>_<epoch>
              
For example:  PNMUsPreEqLastUpdate_0010181A2D11_1403405123
              
The data file is comprised of a header plus the Pre-EQ Data.
The header is composed 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 '504E4D07' (without the quotes)      4 bytes
 Capture Time                                          4 bytes
 Upstream Channel Id                                   1 byte
 CM MAC Address                                        6 bytes
 CMTS MAC Address                                      6 bytes
 Subcarrier zero frequency in Hz                       4 bytes
 FirstActiveSubcarrierIndex                            4 bytes
 Subcarrier spacing in kHz                             1 byte
 Length in bytes of Pre-EQ Data that follows           4 bytes
 Pre-EQ coefficient Data                               ComplexData

Context

MIB: DOCS-PNM-MIB
OID: .1.3.6.1.4.1.4491.2.1.27.1.2.10.1.9
Type: column
Access: readwrite
Status: current
Parent: docsPnmCmUsPreEqEntry
Table: docsPnmCmUsPreEqTable
Siblings: 9

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
docsPnmCmUsPreEqFileEnable This object causes the files defined by the 'docsPnmCmUsPreEqFileName' and the 'docsPnmCmUsPreEqlastUpdateFileName' objects to be created. The files, once created, are available v…	column	SNMPv2-TCTruthValue	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.1`
docsPnmCmUsPreEqFileName This attribute is the name of the file at the CM which is to be transferred to the PNM server. The data represents the current value of the Pre-Equalization values for all of the …	column	SNMP-FRAMEWORK-MIBSnmpAdminString	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.10`
docsPnmCmUsPreEqRipplePkToPk This attribute represents the value of the peak to peak ripple in the magnitude of the equalizer coefficients. This attribute represents the ripple across the entire OFDMA channel…	column	DOCS-IF-MIBTenthdB	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.2`
docsPnmCmUsPreEqRippleRms This attribute represents the value of the RMS ripple in the magnitude of the equalizer coefficients. This attribute represents the ripple across the entire OFDMA channel. This at…	column	DOCS-IF-MIBTenthdB	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.3`
docsPnmCmUsPreEqTiltDbPerMhz This attribute represents the tilt in dB per MHz in the magnitude of the equalizer coefficients. This attribute represents the tilt across the entire OFDMA channel. This attribute…	column	DOCS-IF-MIBTenthdB	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.4`
docsPnmCmUsPreEqGrpDelayVarPkToPk This attribute represents the pk to pk GroupDelayVariation expressed in units of nSec. This attribute represents the group delay variation across the entire OFDMA channel. This at…	column	nSeconds SNMPv2-SMIUnsigned32	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.5`
docsPnmCmUsPreEqGrpDelayVarRms This attribute represents the pk to pk GroupDelayVariation expressed in units of nSec. This attribute represents the group delay variation across the entire OFDMA channel. This at…	column	nSeconds SNMPv2-SMIUnsigned32	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.6`
docsPnmCmUsPreEqPreEqCoAdjStatus This object represents whether the last set of Pre-Equalization coefficient adjustments that were fully applied or were only partially applied due to excessive ripple or tilt in t…	column	Enumeration	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.7`
docsPnmCmUsPreEqMeasStatus 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. Summary Metrics: These va…	column	MeasStatusType	`.1.3.6.1.4.1.4491.2.1.27.1.2.10.1.8`