For Push and Pull Sources from a Broadcaster (v13 and above), this graph shows a heat map of the packet arrival times over time. The scale for the latency is shown along the left side of the graph. The darkness of each cell represents the number of packets recovered at that latency at that point in time, with darker shades representing higher volume of recovered cells. So that, if stream delivery is good, the dark cells should appear only at the bottom of the graph. This information can be helpful in choosing the latency setting for the stream, since there is no need to allow longer latency than the time that is actually being used for packet recovery.
Dynamic use of FEC in the Zixi protocol can compensate for minor fluctuations in packet recovery times.
