Agilent Technologies 622Vu Advisor, User Manual

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12.3 Defining a Round-Trip Delay
(RTD) Session
Type of session
(select Round Trip
Delay in this case).
With a Round-Trip Delay (RTD) session, data travels from the sending device,
out through the network over a preconfigured VPI/VCI, then back to the same
analysis device. QoSMeter measures the latency of transmission, and provides
average, best, and worst latency statistics.
To define an RTD session, first select that type of test at the top of the General
Tab. Then:
•
Use the rest of the General tab to define general settings, separately for
generation and analysis purposes (VPI/VCI, device to use, etc.).
•
Use the Traffic Pattern tab to specify the size of your test data stream
(remember that each session comprises one or more tests), the percent of
bandwidth to use to transmit the test, and any background traffic you want to
run simultaneously with the test data.
•
Use the Options tab to specify various options that apply for test execution
and/or analysis. For example, on the execution side, you’ll use this tab to
specify the number of times to transmit the test, and the interval between the
start of one test and the start of the next test. On the analysis side, you’ll use
it to specify such limits as the CDV tolerance.
The sections that follow detail these tabs further. When you’re through with all
three tabs, click OK to start the session.
12: Using QoSMeter
12.3 Defining a Round-Trip Delay (RTD) Session
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