A high round trip time between the packager and origin networks causes high push latency. Associated symptoms could be:
Fragments dropping at the packager:
By default, the packager is configured to push fragments to one origin server in a serial manner. If the average rate at which the fragments are pushed goes below the rate at which they are generated, the queue size continues to increase at the packager. This occasionally causes fragments to be dropped when it reaches the threshold maximum (default 5).
Out-of-order delivery
Pushing smaller fragments usually take less time. Therefore, the origin server finds the fragments arriving out of order for a single stream from the same packager.
The stream with the highest bitrate displays these symptoms in a severe form. Streams with lower bitrates rarely exhibit these symptoms.
To resolve this problem, you should make one or more of the following configuration changes in the packager and origin and tune the origin machine for larger TCP window size.