Albedo xGenius - Choosing the Test Payload for Ethernet

Traffic Generation
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4.1.4. Choosing the Test Payload for Ethernet
The traffic generated by xGenius is synthetic. It does not contain any real user data. In
fact, the user payload of the internally generated frames is replaced by a test payload.
Many times, test payloads are much more than dummy bit sequences designed to
replace the user traffic. Test payloads may contain time stamps or sequence numbers
that determine which test metrics are available from the result panels or which tests will
be run. For this reason, configuration of the right test payload is important to get the
required results.
Selection of the test pattern is relevant both for the generator and the analyser. When
you generate a test payload or pattern in Port A, the same port is automatically
configured so that it is waiting for frames carrying the same pattern in the receiver.
Settings related with test payload / pattern selection are available both in Port A and
Port B. The procedure to select the test payload in the tester is as follows:
1. Make sure that your tester is connected to the network. The physical layer must
be up and working (See section 4.1.1).
2. From the Home panel, go to CONFIG,
The test port settings panel is displayed.
3. Select either Port A or Port B to enter in the port specific configuration.
4. Enter in the Payload menu.
5. Optionally, if you need to generate the SLA payload, configure a custom Ethertype
value by setting SLA EtherType from to Manual and then entering the Ethertype in
SLA EtherType value,
Transmission rate This control displays an editable table that enables the user
to enter the parameters associated with the traffic to be gen-
erated by the current stream. Parameters to be configured
depend on the current bandwidth profile generation mode:
• Continuous traffic: The relevant bandwidth parameter is
the transmission Rate configured in fr/s, Mb/s or percent-
age.
• Periodic burst: Values to be entered are the high and low
transmission rates (in fr/s, Mb/s or percentage) and the
high and low durations expressed in seconds or frames.
• Ramp: Relevant configuration parameters are the initial
and final transmission rates (in fr/s, Mb/s or percentage),
the Step duration configured in seconds and the Number
of steps.
• Random: The bandwidth parameter to be configured is
the average transmission rate in fr/s, Mb/s or percentage.
Table 4.2: Ethernet Payload Settings
Setting Description