User's Manual

Chapter 16 Test Results
Video results
SmartClass TPS User’s Guide
134 22035456, Rev 001 May 2014
Local and Remote QoS
This category provides quality of service (QoS) test results. The Local QoS reports what we receive
(in the test set), while the Remote QoS reports what they receive (at the far end). Tabl e 2 0 describes
the QoS results.
Video results
The following section describes the results available in IP Video mode. To view the different cate-
gories of statistics, use either the left and right arrows, or press the number for the desired result
category.
Stream Results
This category provides statistics for each test stream. Ta b l e 4 2 describes the Video Stream Results.
Table 40 QoS results
Result Definition
Delay End to end delay in milliseconds
Jitter Deviation in packet arrival times, in milliseconds)
Loss Packet loss based as a percentage lost divided by total packets
NOTE:
The Delay result is only calculated if the RTCP signaling is active.
Table 41 Stream results
Result Description
State Status of the stream
– Stream Up - Active
– Idle - No active stream
– Failed - A stream is no longer detected.
All streams brought up using RTSP protocol will eventually reach the Failed
state. This is because the SmartClass Triple Play Services does not detect
RTSP termination messages or RTSP messages used for special features
such as pause.
Media Type The type of media detected:
– udp (for MPEG-2 TS Video over UDP)
– rtp (MPEG-2 TS Video over RTP)
Media IP The IP address of the stream.
Media Port The RTSP port of the stream.
NOTE: The State, Type, IP address, and Port results refer to the media stream, not the signaling protocol
(IGMP or RTSP) that brought up the stream.
Packet Loss Stats Current, Maximum, and Total Packet Gap Errors, as well as the Maximum
Packet Gap in ms.
Packet Jitter Stats Current and Maximum results for PCR Jitter and IP Jitter.