docsIf31CmtsCmUsOfdmaChannelThresholdRxMerValue
DOCS-IF31-MIB ·
.1.3.6.1.4.1.4491.2.1.28.1.4.1.5
Object
column
HundredthdB
This attribute is the RxMER value corresponding to the specified docsIf31CmtsCmUsOfdmaChannelRxMerThreshold percentile value. The CCAP sorts the subcarriers in ascending order of RxMER, resulting in a post-sorting subcarrier index ranging from 1 to the number of active subcarriers. If the percentile value corresponds to a non- integer post-sorting subcarrier index, the post-sorting index is truncated (floor function is applied); that is, the post-sorting index is selected which is the greatest integer less than or equal to the corresponding percentile value. For example, if there are 3677 active subcarriers and the 2nd percentile is specified, the CCAP computes floor(3677*0.02) = 73. That is, the RxMER value of the 73rd subcarrier in the sorted list is associated with the 2nd percentile. This is displayed in hundredth of a dB, but is only accurate to a quarter dB.
Context
- MIB
- DOCS-IF31-MIB
- OID
.1.3.6.1.4.1.4491.2.1.28.1.4.1.5- Type
- column
- Access
- readonly
- Status
- current
- Parent
- docsIf31CmtsCmUsOfdmaChannelStatusEntry
- Table
- docsIf31CmtsCmUsOfdmaChannelStatusTable
- Siblings
- 14
Syntax
HundredthdB
- Source
- HundredthdB
- Base type
Integer32
Values & Constraints
No enumerated values or constraints recorded.
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| docsIf31CmtsCmUsOfdmaChannelRxPower This attribute is the total received power in a specified
OFDMA channel, normalized to power in a 1.6 MHz bandwidth, at
the RF input port of the CMTS for a given CM. | column | DOCS-IF-MIBTenthdBmV | .1.3.6.1.4.1.4491.2.1.28.1.4.1.1 |
| docsIf31CmtsCmUsOfdmaChannelRangingStatus This attribute denotes the ranging state of the CM. | column | DOCS-IF3-MIBRangingState | .1.3.6.1.4.1.4491.2.1.28.1.4.1.10 |
| docsIf31CmtsCmUsOfdmaChannelCurPartialSvcReasonCode This attribute returns the current CM-STATUS Event Code which
indicates the reason that this CM is experiencing Partial Service
with a bonding group utilizing this upstream OFDMA … | column | PartialSvcReasonType | .1.3.6.1.4.1.4491.2.1.28.1.4.1.11 |
| docsIf31CmtsCmUsOfdmaChannelLastPartialSvcTime This attribute returns the date and time when the MAC indicated
that this CM recovered from its most recent Partial Service
incident on this upstream OFDMA channel. | column | SNMPv2-TCDateAndTime | .1.3.6.1.4.1.4491.2.1.28.1.4.1.12 |
| docsIf31CmtsCmUsOfdmaChannelLastPartialSvcReasonCode This attribute returns the last CM-STATUS Event Code which
indicates the reason that this CM was experiencing Partial
Service on this upstream OFDMA channel. (Note: if the CM is
c… | column | PartialSvcReasonType | .1.3.6.1.4.1.4491.2.1.28.1.4.1.13 |
| docsIf31CmtsCmUsOfdmaChannelNumPartialSvcIncidents This attribute returns the number of Partial Service incidents
the MAC layer has reported for this CM on this upstream OFDMA
channel. | column | SNMPv2-SMICounter32 | .1.3.6.1.4.1.4491.2.1.28.1.4.1.14 |
| docsIf31CmtsCmUsOfdmaChannelNumPartialChanIncidents This attributes returns the number of Partial Channel incidents
the MAC layer has reported for this CM on this upstream OFDMA
channel. | column | SNMPv2-SMICounter32 | .1.3.6.1.4.1.4491.2.1.28.1.4.1.15 |
| docsIf31CmtsCmUsOfdmaChannelMeanRxMer This attribute is the mean of the dB values of the RxMER
measurements of all active subcarriers. The mean is computed
directly on the dB values as follows:
Mean = s… | column | HundredthdB | .1.3.6.1.4.1.4491.2.1.28.1.4.1.2 |
| docsIf31CmtsCmUsOfdmaChannelStdDevRxMer This attribute is the standard deviation of the dB values of
the RxMER measurements of all active subcarriers. The standard
deviation is computed directly on the dB values as foll… | column | HundredthdB | .1.3.6.1.4.1.4491.2.1.28.1.4.1.3 |
| docsIf31CmtsCmUsOfdmaChannelRxMerThreshold This attribute specifies the percentile (such as 2nd percentile
or 5th percentile) of all active subcarriers in an OFDM channel
at which the ThresholdRxMerValue occurs. That is, (… | column | percentile SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4491.2.1.28.1.4.1.4 |
| docsIf31CmtsCmUsOfdmaChannelThresholdRxMerHighestFreq This attribute is the frequency in Hz of the highest-frequency
subcarrier having RxMER = ThresholdRxMer value. | column | Hz SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4491.2.1.28.1.4.1.6 |
| docsIf31CmtsCmUsOfdmaChannelMicroreflections This attribute represents microreflections received on this
upstream channel in dBc. | column | dBc SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4491.2.1.28.1.4.1.7 |
| docsIf31CmtsCmUsOfdmaChannelHighResolutionTimingOffset This attribute represents the current measured round trip
time on this CM's upstream channel in units of
(6.25 microseconds/(64*256)).
This attribute returns zero if the value is … | column | time tick/(64*256) SNMPv2-SMIInteger32 | .1.3.6.1.4.1.4491.2.1.28.1.4.1.8 |
| docsIf31CmtsCmUsOfdmaChannelIsMuted This attribute has a value 'true' to indicate that the CM's
upstream channel has been muted via CM-CTRL-REQ/CM-CTRL-RSP
message exchange. | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4491.2.1.28.1.4.1.9 |