EXFO EXpert IPTV Test Tools (FTB-200v2) - Manual (Page 27)

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 Check Summary metrics for a quick signal quality. Summary provides a list of industry
most used parameters for quick evaluation of IPTV service quality such as MOS Score,
PCR Jitter, Video Packet Loss, TR 101290 and IGMP Latency( zap time).
Definitions:
Tab Category Metric Name Range Description
Summary Summary Measurement Time 0‐12 hrs Total duration of test in seconds from the time START was
pressed to the time STOP was pressed
Average Audio/Video
MOS 1.0‐5.0 The average MOS‐AV across all completed audio/video
streams monitored on the logical
interface. (This does not include active streams.)
Max PCR Jitter ms The PCR jitter in milliseconds
Video Packet Loss Rate % Total proportion of stream transport packets lost or
discarded (minus corrected)
TR 101 290 Errors NA The occurrence of a TR101290 Priority 1 error, TR101290
Priority 2 error or both.
IGMP Latency 0‐3 sec The time from IGMP Join request to the stream arrival
time
Video
Description
Information IP Source Address NA The source IP address
IP Destination Address NA The destination IP address
Source Port NA The source transport port.
Destination Port NA The destination transport port
Protocols NA The encapsulation of the stream, for example UDP/RTP,
UDP, UDP/TCP, etc.
Codec Type NA The video codec used for the MPEG‐TS frames in the
stream
Group of Picture Type NA The GOP structure expressed as a series of ‘I’, ‘B’, ‘P’
characters describing the frame type series in the
structure.
Current GOP Length NA The current GOP length, in frames.
Average GOP Length NA The average GOP length, in frames.
Frame Width Pixels The video frame image width, in pixels.
Frame Height Pixels The video frame image height, in pixels.
Frame Rate Frames per
sec The video frame rate, in frames per one thousand
seconds – e.g. 29,970 equals 29.97 frames per second.
Interlaced 0 OR 1 A Boolean value indicating whether the stream is
interlaced (TRUE), with alternating scanning of even and
odd scan lines or progressive (FALSE), with scanning line
by line in order.
Average Number of Slices
in I‐frame The average number of slice contained in each I‐frame
Reference Clock Rate Khz The 33‐bit value of the MP2TS program clock reference
(PCR) 90kHz portion.
Average Video
Bandwidth Mbits/s The average bandwidth of the video stream in
Mbits/second.
Average Packet Size The average packet size of the video stream.