Sunrise telecom XTT 5000, User Manual

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Throughput Testing
Stream - Ramp Traffic Shape Setup Home
From the Throughput Stream Table or Pattern on the Signal tab, press 'Traffic Shape'
to configure the traffic.
The traffic is transmitted at a variable rate from Start Bandwidth (between 0.00%
and 100.00%) to Stop Bandwidth (between 0.00% and 100.00%), with increments
of Step Size (between 0.01% and 100.00%).
Parameter Options Details
Rate Percentage, IPG
(ns), Bit Rate
Determine the traffic rate.*
Rate:
Percentag
e
0.01% to
100.00% Ethernet traffic is expressed in terms of
the percentage of bandwidth used.
At 100%, the gap between frames is at
its minimum. As the percentage is
reduced, the IPG is increased.
Rate:
IPG (ns) The minimum IPG
is 12 bytes or 96
bit times.
The interpacket gap (IPG) is the delay
between successive frames.
Rate:
Bit Rate
The bit rate, given as a number of kbps,
is a direct function of the bandwidth
percentage.
Because the frame length can be
random, there is no fixed relationship
between bit rate and data rate.
* When changing units from Percentage to IPG to Bit Rate, the display will reset back
to the last value entered for those units.
The following parameters are explained in terms of percentages, but would appear as
ns or kpbs if Percentage was not selected as the Rate.
Parameter Options Details
Start
Bandwidth
Enter the bandwidth percentage the XTT 5000
will start transmitting at the beginning of the
test.
Stop
Bandwidth Enter the bandwidth percentage where the
XTT 5000 will stop ramping. After
transmitting at this bandwidth (e.g. 100%)
for the determined Step Duration, the unit
will continue transmitting frames at this
maximum rate.
Step Duration 1-60
seconds
Number of seconds the XTT 5000 will
transmit each bandwidth step.
The time scale on the graph is based on this
unit of time.
Step
Bandwidth Enter the bandwidth percentage the unit will
increase each step up.
Where do you want to go next?
Throughput Stream Table Setup
Throughput Applications
69