dcxMACUpChannelLogSnrAveTimeconstant
ARRIS-C3-MAC-MIB ·
.1.3.6.1.4.1.4115.1.4.3.6.1.3.1.15
Object
column
r/w
Unsigned32
The averaging timeconstant used to calculate the per-logical channel MIB variable docsIfSigQSignalNoise. The averaging uses a logarithmic scale, so that the actual timeconstant used is 2^X, where X is the value configured for this object. Increasing the value of X increases the degree to which the SNR results are averaged over time, and reduces the sensitivity of the reported channel SNR to local oscillations in signal quality. Averaging can effectively be disabled by setting this object to 0
Context
- MIB
- ARRIS-C3-MAC-MIB
- OID
.1.3.6.1.4.1.4115.1.4.3.6.1.3.1.15- Type
- column
- Access
- readwrite
- Status
- current
- Parent
- dcxMACUpstreamChannelEntry
- Table
- dcxMACUpstreamChannelTable
- Siblings
- 22
Syntax
Unsigned32
Values & Constraints
Object Constraints
range: 0-10
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| dcxMACUpChannelMacMode Indicates the mode in which this upstream is operating. A read or
write to this may consist only of the values docsis or euroDocsis. | column | DocsisMacType | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.1 |
| dcxMACUpChannelMaxCmMapProcTime The maximum time in microseconds allowed for modems on this logical
channel to process the Upstream Bandwidth Allocation MAP. | column | Unsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.10 |
| dcxMACUpChannelConcatenation Enables or disables the use of packet concatenation by Cable Modems on
this logical channel. | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.11 |
| dcxMACUpChannelSpMgtTriggerIndex An index into spectral management trigger table, identical
to dcxMACSpMgtTriggerIndex in that table. All entries with
the same value of dcxMACSpMgtTriggerIndex form a trigger gr… | column | Unsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.12 |
| dcxMACUpChannelLowPowerOffset The maximum power offset of a burst below the nominal
input power to the CMTS that will not cause a RNG-RSP
with status continue. Valid range is from -10 dBmV to
-1 dBmV in 1 dB i… | column | Integer32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.13 |
| dcxMACUpChannelHighPowerOffset The maximum power offset of a burst above the nominal
input power to the CMTS that will not cause a RNG-RSP
with status continue. Valid range is from +1 dBmV to
+10 dBmV in 1 dB i… | column | Integer32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.14 |
| dcxMACUpChannelImpulseMitigation Enables or disables impulse noise mitigation for this
logical channel. | column | Enumeration | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.16 |
| dcxMACUpChannelRngPreambleGuardSymbols Number of guard symbols before the preamble pilot pattern for
ranging bursts. Guard symbols may help the receiver to mitigate
the effects of ISI and\or help with the detection o… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.17 |
| dcxMACUpChannelNrngPreambleGuardSymbols Number of guard symbols before the preamble pilot pattern for
non-ranging bursts. Guard symbols may help the receiver to mitigate
the effects of ISI and\or help with the detecti… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.18 |
| dcxMACUpChannelExtendedFrequencyErrorDetect Offsets in carrier frequency in the modem are corrected by the CMTS
during ranging. Typically most if not all off the frequency error is
removed in the initial ranging response wi… | column | Enumeration | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.19 |
| dcxMACUpChannelAmpAttenuation The amplifier attenuation level for this logical
channel. | column | DOCS-IF-MIBTenthdBmV | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.2 |
| dcxMACUpChannelLogC3SnrTimeconstant The averaging timeconstant used to calculate the per-logical channel
MIB variable dcxMACUpChannelSignalNoise. The averaging uses a logarithmic
scale, so that the actual timeconst… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.20 |
| dcxMACUpChannelSignalNoise A measurement of the average signal/noise ratio for the logical upstream.
The averaging may be controlled using the dcxMACUpChannelLogC3SnrTimeconstant
variable | column | dB DOCS-IF-MIBTenthdB | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.21 |
| dcxMACUpChannelSafeConfig If true, MIB SETs which would cause this logical channel to go offline will return
a failure | column | SNMPv2-TCTruthValue | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.22 |
| dcxMACUpChannelInitialRangingDelay The number of extra microseconds to allow in a broadcast IUC3
grant to compensate for modems that perform initial ranging later
than expected. | column | microseconds Unsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.23 |
| dcxMACUpChannelIngressCancellation Sets the ingress noise cancellation mode for this
logical channel. Not all modes may be valid for a
given logical channel configuration or hardware. | column | Enumeration | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.3 |
| dcxMACUpChannelGroupId The group ID for this logical channel used to associate it
with other upsteams on the same physical network. The group ID
is an index into the dcxMACUpstreamGroupTable which def… | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.4 |
| dcxMACUpChannelShortPollInterval The short interval for initial unicast maintanance on this logical
channel. | column | Integer32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.5 |
| dcxMACUpChannelPeriodicPollInterval The periodic station maintanance interval on this logical channel. | column | Integer32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.6 |
| dcxMACUpChannelInputPowerMode The receiver input power mode for this logical channel. In fixed
mode the input power to the demodulator will remain fixed across
symbol rate changes. In automatic mode the demod… | column | Enumeration | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.7 |
| dcxMACUpChannelPower The nominal receiver input power for this logical channel. | column | DOCS-IF-MIBTenthdBmV | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.8 |
| dcxMACUpChannelPlantLength The cable length in km to the most distant CM on this logical
upstream. | column | Unsigned32 | .1.3.6.1.4.1.4115.1.4.3.6.1.3.1.9 |