EXFO EXpert IPTV Test Tools (FTB-200v2) - Manual (Page 32)

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Definitions:
Tab Category Metric Name Range Description
Packets Video
Transport
Packet
Metrics
Packets Received NA Number of video transport packets received properly for playout during the
interval by the end system or observed at the monitoring point, excluding
any duplicate packets.
Packets Lost NA Number of video transport packets identified as lost at the endpoint or
monitoring point during the interval
Packets Discarded NA Number of video transport packets discarded by the receiving jitter buffer
during the interval or an estimate of this value made at the monitoring point.
Packets Out of
Sequence NA Number of video transport packets arriving out of sequence during the
interval.
Packets Duplicated NA Number of duplicate video transport packets received during the interval.
Lost% 0-100% Total proportion of stream transport packets lost or discarded (minus
corrected)
Corrected and Lost % 0-100% The proportion of stream transport packets lost in the transport network after
error correction algorithms have been applied, e.g. FEC or Reliable UDP.
Discarded % 0-100% The proportion of stream transport packets discarded due to late arrival.
Out Of Sequence % 0-100% The proportion of stream transport packets arriving out-of-sequence.
Duplicated % 0-100% The proportion of stream transport packets arriving as duplicates of
previously received
packets.
Burst Count NA The number of transport packet loss/discard burst occurrences over the
duration of the
stream.
Burst Loss Rate 0-100% The proportion of packets lost (before application of error correction
algorithms)
during burst periods.
Average Burst Length packets The average length of a packet loss burst, in transport packets.
Gaps Count NA The number of transport packet loss/discard gap occurrences over the
duration of the
stream.
Gaps Loss Rate 0-100% The proportion of packets lost (before application of error correction
algorithms)
during gap periods.
Average Gap Length packets The average length of a gap, in transport packets.
Jitter Metrics PCR Jitter ms The PCR jitter in milliseconds
Max PCR Jitter ms The maximum PCR Jitter in ms
RTP Packet
Metrics Packets Received NA A count of a number of stream RTP transport packets received during the
interval
Packets Corrected NA A count of a number of stream RTP transport packets corrected by FEC
during the interval
Packets Lost NA A count of a number of stream RTP transport packets lost during the interval
Packets Discarded NA A count of a number of stream RTP transport packets discarded lost during
the interval
Packets Out of
Sequence NA A count of a number of stream RTP transport packets out-of-sequence lost
during the interval
Packets Duplicated NA A count of a number of stream RTP transport packets duplicated lost during
the interval
Packets w/Timestamp
Errors NA A count of a number of stream RTP transport packets with a timestamp error
during the interval