Status; Analysis - JDS Uniphase HST-3000 User Manual

Chapter 3 Interpreting Test Results
Class of Service results
There are two cursors (selected using the Actions soft key)
which can be used to determine time intervals, shown in
Table 16 with the delta symbol. The Actions soft key also
allows zoom in and zoom out.
Use the up and down keys to move among the graphs.

Status

This category provides summary status information for each
application, such as whether a stream is up or Qos analysis
passed or failed.

Analysis

The Analysis screen provides multi-layer analysis to view
correlation. For example, if there is video packet loss or
excessive jitter, this would help identify which network
segment may be responsible. See Figure 17.
Figure 17 CoS Analysis screen
When two or three similar (SD to SD or HD to HD) video
broadcast streams are up with QoS data present, compare
PCR jitter. If a stream shows a PCR jitter value of 10% or more
above the other stream or streams, there is a content issue.
Any Error Indicator count indicates a content issue.
Any PMT or PAT error condition due to scrambling "on" is a
content issue.
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HST-3000 IP Video Testing User's Guide