docsPnmCmDsOfdmMerMarTable

The purpose of this item is to provide an estimate of the MER margin
available on the downstream data channel with respect to a candidate
modulation profile. This is similar to the MER Margin reported in the
OPT-RSP Message [MULPIv3.1].
          
The CM calculates the Required Average MER based on the bit loading for
the profile and the Required MER per Modulation Order provided in the
RequiredDsOfdmQamMer Table. The CM then measures the RxMER per
subcarrier and calculates the Average MER for the Active Subcarriers
used in the Profile and stores the value as MeasuredAvgMer.
          
The CM also counts the number of MER per Subcarrier values that are
below the threshold determined by the Required MER for the Modulation
Order and the ThrshldOffset. The CM reports that value as
NumSubcarriersBelowThrshld.
          
This table will have a row for each ifIndex for the modem.

MIB

DOCS-PNM-MIB

OID

.1.3.6.1.4.1.4491.2.1.27.1.2.6

Type

table

Status

current

Parent

docsPnmCmObjects

Children

1