EXFO AXS-200/635, Руководство пользователя

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Configure Tests for DSL/IP Triple-Play Verification
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AXS-200/635
Configure DSL/IP Tests
IPTV Analysis
The IPTV Analysis tab allows you to configure the unit for video testing.
The parameters are the following:
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Join Multicast Address is the
multicast address of the channel
that is automatically requested to
join when running the video
analysis during the auto test.
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Monitoring Interval
is a list of
time interval values - 8 , 16 , 32 , or
64 min
- to set the length of time
for which data is plotted on a graph.
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Test Thresholds
allow you to set critical quality of service (QoS)
values for delivering IPTV over DSL.
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Max Packet Jitter (ms)
is a value in accordance with the network
characteristics, ranging from 0 through 99 milliseconds, to be used
as the pass or fail criteria for QoS.
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Max Lost Packet Ratio (%) is a percentage of the total packet rate,
ranging from 0 through 10.00, to use as pass/fail criteria for QoS.
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Max ZAP Time(ms) is the time in milliseconds, ranging from
0 through 999, required for a channel change and to be considered
when evaluating IPTV QoS.
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MAX PCR Jitter (ms)
is the short-term variation in milliseconds,
ranging from 0 through 999, of the arrival of the PCR (program
clock reference) information at the video decoder.
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Max MDI:DF (ms) is the media delivery index (MDI) to delay factor
(DF) in milliseconds, ranging from 0 through 999.
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Max MDI:MLR (packs/s) is the media delivery index (MDI) to
media loss rate (MLR) in packets lost per second, ranging from
0 through 999.