Table of Contents

Integrated DOCSIS parameters – DS QAM CH

This page contains an overview of the DS QAM CH parameters available in the Integrated DOCSIS branch of the EPM Solution.

These parameters are displayed for the Node Segment and Service Group levels in the Integrated DOCSIS dashboards.

  • Name [IDX]: Direct value. The display name of the downstream channel.

    Concatenation of the CMTS name and the DS channel name, using "/" as a separator.

  • DS Service Group Name: Direct value. The display name of the downstream service groups associated with the downstream channel.

    Concatenation of the CMTS name, downstream port, and service group [fiber node] system name, using "/" as a separator.

  • DS Ch Name: Direct value. The display name of the downstream channel.

    Concatenation of the service group [fiber node] system name and DS channel system name, using "/" as a separator.

  • Service Group [Fiber Node] Name: Direct value. The display name of the service group [fiber node] associated with the downstream channel.

    Concatenation of the CMTS name, service group [fiber node] system name, cable interface, and alias of the first channel associated with the cable interface, using "/" as a separator.

  • Node Segment Name: Direct value. The display name of the node segment.

    Concatenation of the CMTS name and the unique combination of a DS port and US port, using "/" as a separator. This entity is dynamically created by the connector logic from the perspective of the Integrated DOCSIS service. There will be a node segment every time the connector detects a unique US/DS port combination serving at least one cable modem.

  • DS QAM Ch Frequency: Direct value. The DS QAM Ch Frequency from any of the CM-channel relations.

    OID: 1.3.6.1.2.1.10.127.1.1.1.1.2.

  • DS QAM Ch Width: Direct value. The DS QAM Ch Width from any of the CM-channel relations.

    OID: 1.3.6.1.2.1.10.127.1.1.1.1.3.

  • DS QAM Ch Modulation: Direct value. The DS QAM Ch Modulation from any of the CM-channel relations. Possible Values: Unknown, Other, QAM64, QAM256.

    OID: 1.3.6.1.2.1.10.127.1.1.1.1.4.

  • DS QAM Ch Rx Power: Calculated. Average value of the DS QAM Ch Rx power related to the cable modems served by the given channel.

    OID: 1.3.6.1.2.1.10.127.1.1.1.1.6.

  • DS QAM Ch SNR: Calculated. Average value of the DS QAM Ch SNR related to the cable modems served by the given channel.

    OID: 1.3.6.1.2.1.10.127.1.1.4.1.5.

  • DS QAM Ch MER: Calculated. Average value of the DS QAM Ch MER related to the cable modems served by the given channel.

    OID:1.3.6.1.4.1.4491.2.1.20.1.24.1.1.

  • DS QAM Ch Corrected Packet Ratio: Calculated. The average value of the DS QAM Ch Corrected Packet Ratio related to the cable modems served by the given channel.

    Calculated as follows: Corrected Ratio = (Corrected Difference * 100) / (Corrected Difference + Unerrored Difference + Uncorrected Difference).

    • Corrected: OID 1.3.6.1.2.1.10.127.1.1.4.1.9

    • Unerrored: OID 1.3.6.1.2.1.10.127.1.1.4.1.8

    • Uncorrected: OID 1.3.6.1.2.1.10.127.1.1.4.1.11

  • DS QAM Ch Uncorrectable Packet Ratio: Calculated. The average value of the DS QAM Ch Uncorrectable Packet Ratio related to the cable modems served by the given channel.

    Calculated as follows: Uncorrectable Ratio = (Uncorrected Difference * 1000,000) / (Corrected Difference + Unerrored Difference + Uncorrected Difference).

    • Corrected: OID 1.3.6.1.2.1.10.127.1.1.4.1.9

    • Unerrored: OID 1.3.6.1.2.1.10.127.1.1.4.1.8

    • Uncorrected: OID 1.3.6.1.2.1.10.127.1.1.4.1.11

  • DS QAM Ch Utilization: Direct value. Retrieved from the docsIfCmtsChannelUtilizationTable (OID 1.3.6.1.2.1.10.127.1.3.9) polled from the CCAP.

  • DS QAM Ch Output Bitrate: Calculated. The average value of the DS QAM Ch Output Bitrate related to the cable modems served by the given channel.

    Calculated as follows: DS QAM Ch Output Bitrate = (Current Nº octets transmitted - Nº octets transmitted previously) / (Delta * 1000.0).

    • Nº octets transmitted: OID 1.3.6.1.2.1.2.2.1.16
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