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DOCSIS 4.0 FDD Diplexer Band-Edge Capability

Exposes A Cable Modem’s Supported FDD Diplexer Band Edges For Downstream And Upstream Planning In DOCSIS 4.0.

Endpoint

POST /docs/fdd/diplexer/bandEdgeCapability

Request

Use the SNMP-only format: Common → Request TFTP parameters are not required.

Response

This endpoint returns the standard envelope described in Common → Response (mac_address, status, message, data).

data is an array of capability sets. Each item contains a capability index and an entry with the upstream upper, downstream lower, and downstream upper diplexer band-edge frequencies (in MHz).

Abbreviated Example

{
  "mac_address": "aa:bb:cc:dd:ee:ff",
  "status": 0,
  "message": null,
  "data": [
    {
      "index": 1,
      "entry": {
        "docsFddDiplexerUsUpperBandEdgeCapability": 85,
        "docsFddDiplexerDsLowerBandEdgeCapability": 108,
        "docsFddDiplexerDsUpperBandEdgeCapability": 1794
      }
    },
    {
      "index": 2,
      "entry": {
        "docsFddDiplexerUsUpperBandEdgeCapability": 204,
        "docsFddDiplexerDsLowerBandEdgeCapability": 258,
        "docsFddDiplexerDsUpperBandEdgeCapability": 1794
      }
    },
    {
      "index": 3,
      "entry": {
        "docsFddDiplexerUsUpperBandEdgeCapability": 396,
        "docsFddDiplexerDsLowerBandEdgeCapability": 468,
        "docsFddDiplexerDsUpperBandEdgeCapability": 1794
      }
    }
  ]
}

Response Fields

Field Type Units Description
mac_address string — MAC address of the queried device.
status int — Operation status (0 = success; non-zero = failure).
message string — Optional result message.
data array — Array of diplexer capability sets.
data[].index int — Capability set identifier.
data[].entry.docsFddDiplexerUsUpperBandEdgeCapability int MHz Supported upstream upper band-edge frequency.
data[].entry.docsFddDiplexerDsLowerBandEdgeCapability int MHz Supported downstream lower band-edge frequency.
data[].entry.docsFddDiplexerDsUpperBandEdgeCapability int MHz Supported downstream upper band-edge frequency.

Response Summary (Example)

Index Upstream Upper (MHz) Downstream Lower (MHz) Downstream Upper (MHz)
1 85 108 1794
2 204 258 1794
3 396 468 1794

Notes

  • Frequencies are reported in MHz and reflect capability (not necessarily the currently configured split).
  • A value of 0 indicates the device does not advertise extended spectrum for that band edge.
  • Use this data to validate modem-CMTS spectrum compatibility when planning FDD profiles and extended splits.