MP217 'Obtaining Timestamps to allow Target Response Time Measurements'

The implementation of MP122A led to a revised suite of reports and dashboards that are measuring the Round Trip Time (RTT) of a request or transaction, and not the Target Response Time (TRT). This is due to the MP122A legal text referring to RTTs as TRTs.
TRTs set the expected performance for messages transiting the Data Communications Company (DCC) networks and systems. They only measure performance within the DCC environment (DCC User Gateway to Communications Hub and reverse). They do not provide a holistic view of a message journey, as they do not measure the time spent on the HAN.
The DCC does not currently have the capability to measure TRTs at an individual Service Reference Variant (SRV) level and in real-time, as required by the MP122A legal text in Sections H13.1 and H13.1A. At present, the TRT reporting requirements are met using a combination of real-time and test messages.

Any proposed solution(s) for this proposal are still under review