Page 74 - Dante Controller User Guide

Dante Controller User Guide

n The latency Setting for the histogram. In most cases, this will be the same as the latency setting on
the receiver. However, for some subscriptions, Dante will automatically apply a different latency. For
example:

o Multicast flows are automatically set to a minimum of 1ms
o If a transmitter does not support the latency set on the receiver (i.e. it can't guarantee delivery
within the required latency), Dante will increase the latency to the lowest setting supported by
the transmitter. Ultimo devices, for example, support a minimum latency of 2ms, so sub-
scriptions to Ultimo devices will use a minimum of 2ms latency.
n The Peak latency since measuring started
n The Average latency since measuring started
n The number of measurements taken that included one or more Late packets (note that each meas-
urement typically includes many packets)

Interpreting the Histogram
If all bars are green and falling well within the limit of the histogram (i.e. towards the left or middle of the
histogram), it indicates that the latency setting for the receiver is set high enough to prevent packet loss.
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If any bars are amber, it means that some packets are arriving near the limit of the latency setting. Network
traffic fluctuations could potentially lead to extra delay which could cause packets to arrive late. A
histogram of this type indicates that the receiver latency should be increased if possible.
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