The Link Report provides message round-trip time from the source to the destination components. Each component performs Link Test periodically that it sends Query Link to the known destination components. The destination component replies Report Link back to the sending component to calculate the round-trip message time. The Link Test is performed for a predefined period of time.
The message round-trip time is part of the component status details that the component registers to the Subsystem Manager.
Figure 5 Link Test Interaction