docsIfExt2CmtsCmMscStatusEffectiveSNR
DOCS-IFEXT2-MIB ·
.1.3.6.1.4.1.4491.2.1.5.1.3.2.1.6
Object
The signal to noise ratio estimated for this cable modem on the upstream logical channel, referenced to 64QAM modulation. It is defined as the measured SNR at the last station maintenance, minus the CM power shortfall, plus the Power Headroom, minus the constellation gain of the station maintenance burst. Note that the value of the object docsIfCmtsCmStatusSignalNoise will be identical to the value of this object when Maximum Scheduled Codes is enabled.
Context
- MIB
- DOCS-IFEXT2-MIB
- OID
.1.3.6.1.4.1.4491.2.1.5.1.3.2.1.6- Type
- column
- Access
- readonly
- Status
- current
- Units
- TenthdB
- Parent
- docsIfExt2CmtsCmMscStatusEntry
- Table
- docsIfExt2CmtsCmMscStatusTable
- Siblings
- 5
Syntax
TenthdB DOCS-IF-MIBTenthdB
- Source
- DOCS-IF-MIBTenthdB
- Base type
Integer32
Values & Constraints
No enumerated values or constraints recorded.
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| docsIfExt2CmtsCmMscStatusPowerShortfall Indicates the Power Shortfall at the CM, in units of
tenth dB.
The value is provided by the CM and is sent in the
RNG-REQ message. It is internally calculated in units
of quarter … | column | TenthdB DOCS-IF-MIBTenthdB | .1.3.6.1.4.1.4491.2.1.5.1.3.2.1.1 |
| docsIfExt2CmtsCmMscStatusCodeRatio Indicates the maximum ratio of number of active codes to
Maximum Scheduled Codes that the CM reported in the
Ranging Request. | column | Unsigned32 | .1.3.6.1.4.1.4491.2.1.5.1.3.2.1.2 |
| docsIfExt2CmtsCmMscStatusMaximumScheduledCodes Indicates the Maximum Scheduled Codes value in use by
the CM. The value is provided by the CMTS through a TLV
in the RNG-RSP message. Note that not all values from
4..128 are vali… | column | Unsigned32 | .1.3.6.1.4.1.4491.2.1.5.1.3.2.1.3 |
| docsIfExt2CmtsCmMscStatusPowerHeadroom Indicates the Maximum Scheduled Codes Power Headroom
in use by the CM, in units of tenth dB. The value is
provided by the CMTS in units of quarter dB through a
TLV value in the RN… | column | TenthdB DOCS-IF-MIBTenthdB | .1.3.6.1.4.1.4491.2.1.5.1.3.2.1.4 |
| docsIfExt2CmtsCmMscStatusMeasuredSNR The signal to noise ratio perceived for this cable modem
on the upstream logical channel as of the last station
maintenance. | column | TenthdB DOCS-IF-MIBTenthdB | .1.3.6.1.4.1.4491.2.1.5.1.3.2.1.5 |