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Open-Network-Models-and-Interfaces-ONMI / TAPI

LF ONMI Transport API Repository (TAPI)
https://github.com/Open-Network-Models-and-Interfaces-ONMI/TAPI/wiki
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ITU-T G.709 ODU PM delay measurement (DMp) #450

Closed amazzini closed 5 months ago

amazzini commented 5 years ago

TAPI ODU MEP (OduMepPac) includes the attributes necessary for triggering On Demand Delay Measurement (dmSource and dmValue, applicable only on ODU Trail Termination and Tandem Connection Termination), but the delay counter, result of this measurement, seems missing. It appears missing also in current ITU-T G.874 and G.875. It is suggested to check: 1) whether currently defined dmSource and dmValue attributes are appropriate in the light of TAPI network view, 2) add the delay counter (likely) to OduPmPac, evaluating the introduction of ODU Current/History Data etc.

bzeuner commented 5 years ago

According to my understanding, the dmValue is not relevant for management. A function that toggles the value is enough.

amazzini commented 4 years ago

The apparently missing delay counter is defined in G.798: 14.2.1.2 ODUP trail termination sink function (ODUP_TT_Sk) 14.5.1.1.2 ODUT trail termination sink function (ODUT_TT_Sk) pN_delay <-- nN_delay (Ʃ number of frames between the DMValue toggle event and the received DMp signal value toggle event)

amazzini commented 4 years ago

ODU FM & PM enhancements #454 introduces the pN_delay counter. Still to be agreed the removal of dmSource and dmValue.

amazzini commented 5 months ago

This issue has been closed due to the lack of activity for more than one year. Please reopen it if follow up is necessary.