VeEX MPA User Manual page 716

MPA_e_manual_D07-00-129P_RevA00
RFC Tests - Back-To-Back Burst Test (B2B Burst)
This is an RFC 2544 benchmark test. Back-to-Back Burst test is used to determine the
buffering capability of the Device Under Test (DUT). This is done by sending a burst of
frames to the unit, and then counting how many frames are forwarded by the unit.
During the test a burst of fixed length frames with the minimum inter-frame gap between
them is sent through the packet stream. The trial duration must be between 2 and 10
seconds. The RFC standard recommends (but does not required) that this trial should
be repeated at least 50 times with the average value reported.
If the unit successfully transmits all the frames that it receives, the frame burst size is
increased and the test is repeated. If this stage of the test fails, the frame burst size is
halved and the test is repeated until the unit successfully transmits the frame burst. The
default frame burst sizes used are 64, 128, 256, 512, 1024, 1280, and 1518 bytes.
Option
Stream ID
Trial Duration
Dest MAC Address
Dest Port
Resolution (in
frame:)
Description
Displays the ID number of the stream that will be used for the
RFC test.
The Stream ID is configured from the RFC Tests - Conf
screen.
Displays how long the test will run for each packet size. This
duration is used each time the test fails.
The Trial Duration
screen.
Important: The trial duration must be between 2 and 10
seconds.
Displays the destination MAC address of the device that will
receive the RFC test.
The Dest MAC Address
Stream ID from the Traffic Stream Profile on the Conf screen.
Displays the destination port that will receive the test signal.
The destination port configuration setting is not supported
on the MPA.
Sets the level of precision for the B2B test, by frames. The
value is the number of frames in the longest burst that the
DUT will handle without the loss of any frames. Valid values
is configured from the RFC Tests - Conf
is configured for the selected
Packet Tab
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