Test cases
This table describes the test cases concerning DDM functions.
Note: Bidirectional QSFP+ modules are not required to have sensors. Some SFP+/SFP modules have
limited DDM functionality. A feature is only tested if it is supported by the device.
Test Case | Description |
---|---|
Read temperature | Verify that it is possible to read the QSFP28/CFP4/QSFP+/SFP28/SFP+/SFP temperature. |
Read voltage | Verify that the voltage sensor value can be read from the DDM data. |
Read RX power | Verify that the RX power sensor value can be read from the DDM data. |
Read TX power | Verify that the TX laser can be enabled (where applicable), and that the TX power sensor value read from the DDM data is larger than 0 when the laser is on. |
Verify that the TX laser can be disabled (where applicable), and that the TX power sensor value read from the DDM data is 0 when the laser is off. |