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optics_power_and_bias_current_test

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Github Action edited this page Oct 17, 2023 · 4 revisions

gNMI-1.13: Optics Telemetry, Instant, threshold, and miscellaneous static info

Summary

Validate optics related streaming telemetry performance monitoring parameters like input power, output power, bias current and so on.

Setup

Optics test requirements alongside the platform funtional tests require 2 optics DUT samples each optics part number, connect both two optical ethernet interfaces to Automatic Test Equipment (ATE).

Procedure

  • Connect at least one optical ethernet interface to ATE.

  • Step 1: Using components/component/[name=%s]/state get the list of transceivers and validate following leafs are set:

    • /components/component/state/mfg-name

    • /components/component/transceiver/state/form-factor

    • /components/component/state/serial-no

    • /components/component/state/part-no

    • /components/component/state/firmware-version

    • Using /interfaces/interface/state get the list of Interfaces and validate following leafs are set:

      • /interfaces/interface/state/physical-channel
      • /interfaces/interface/state/transceiver

    • Verify that the list of transceivers received are the same. This is only a consistency check that the vendor implemented the model correctly.

      • /components/component/state
      • /interfaces/interface/state/transceiver

  • Step 2: Get list of components of type TRANSCEIVER. Verify the instant value is between the corresponding lower and upper thresholds for both [severity]=WARNING and [severity]=CRITICAL. In case of multiple physical channels or lanes relevant PMs like TX and RX power should be reported for all the lanes.

    • Module case temperature
      • /components/component/transceiver/thresholds/threshold/state/module-temperature-lower
      • /components/component/transceiver/thresholds/threshold/state/module-temperature-upper
      • /components/component/transceiver/thresholds/threshold/state/severity
      • /components/component/state/temperature/instant
    • Tx output power
      • /components/component/transceiver/thresholds/threshold/state/output-power-lower
      • /components/component/transceiver/thresholds/threshold/state/output-power-upper
      • /components/component/transceiver/thresholds/threshold/state/severity
      • /components/component/transceiver/physical-channels/channel/state/output-power/instant
    • Rx input power
      • /components/component/transceiver/thresholds/threshold/state/input-power-lower
      • /components/component/transceiver/thresholds/threshold/state/input-power-upper
      • /components/component/transceiver/thresholds/threshold/state/severity
      • /components/component/transceiver/physical-channels/channel/state/input-power/instant
    • Laser bias-current
      • /components/component/transceiver/thresholds/threshold/state/laser-bias-current-lower
      • /components/component/transceiver/thresholds/threshold/state/laser-bias-current-upper
      • /components/component/transceiver/thresholds/threshold/state/severity
      • /components/component/transceiver/physical-channels/channel/state/laser-bias-current/instant

  • Step 3:

    • Verify the telemetry is updated after the optics power cycle.
    • Disable the DUT transceiver (power off module 3.3V supply).
    • Verify /interfaces/interface/state/oper-status is DOWN.
    • Enable the DUT transceiver (power on module 3.3V supply)
    • Verify /interfaces/interface/state/oper-status is UP.
    • Repeat Step1 and Step2.

  • Step 4: Verify the telemetry is updated after the interface is flapped.

    • Disable/shutdown the interface of the DUT.
    • Verify the optics input power and output power are updated to below the corresponding low alarm threshold.
    • Verify /interfaces/interface/state/oper-status is DOWN
    • Re-enable the interface of the DUT
    • Verify /interfaces/interface/state/oper-status is UP.
    • Repeat Step1 and Step2.

Config Parameter coverage

  • /interfaces/interface/config/enabled
  • /components/component/transceiver/state/enabled (transceiver 3.3V power supply on/off)

Telemetry Parameter coverage

  • /components/component/transceiver/physical-channels/channel/state/input-power/instant
  • /components/component/transceiver/physical-channels/channel/state/output-power/instant
  • /components/component/transceiver/physical-channels/channel/state/laser-bias-current/instant
  • /components/component/state/temperature/instant
  • /components/component/state/mfg-name
  • /components/component/transceiver/state/form-factor
  • /components/component/state/serial-no
  • /components/component/state/part-no
  • /components/component/state/firmware-version
  • /components/component/transceiver/thresholds/threshold/state/output-power-lower
  • /components/component/transceiver/thresholds/threshold/state/output-power-upper
  • /components/component/transceiver/thresholds/threshold/state/input-power-lower
  • /components/component/transceiver/thresholds/threshold/state/input-power-upper
  • /components/component/transceiver/thresholds/threshold/state/module-temperature-lower
  • /components/component/transceiver/thresholds/threshold/state/module-temperature-upper
  • /components/component/transceiver/thresholds/threshold/state/laser-bias-current-lower
  • /components/component/transceiver/thresholds/threshold/state/laser-bias-current-upper
  • /components/component/transceiver/thresholds/threshold/state/severity
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