VeEX MPA, User Manual

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Protocol Tabs
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To assign a user-defined frame size:
a. Select a Packet Size button (for example, 64). A keypad appears.
b. Enter a new value and select OK . Value ranges are 64 - 16000.
c. By default, packet sizes 64 - 1518 are already selected, but packet size
9000 is not selected. You can enable 9000 if your test needs to include
Jumbo packets.
d. To return frame sizes to default settings, select the Restore to RFC
Standard Settings .
8. Select the type of RFC test that you wish to run by choosing its tab from along
the left side of the RFC Tests screen. Complete any necessary configurations
these tabs.
•
To run a Thru Put test see Throughput Testing
•
To run a Frame Loss test see Frame Loss Testing
•
To run a B2B Burst test see Back-to-Back Burst Testing
RFC-2544 - Thru Put Testing
Throughput testing is an RFC 2544 benchmark test that calculates your network's
throughput rate. The fastest throughput speed is indicated by the rate at which the
transmission and reception of the Ethernet test stream is accomplished without packet
loss.
For example, the Throughput test starts by transmitting a stream at 100% using a
packet size of 64 bytes. If it fails (i.e., an unacceptable number of packets are lost), the
stream transmission rate falls back a certain percentage and is transmitted again. This
process continues until the test passes without losing packets. The test then tries to
zero in on the best throughput rate based on the Resolution Rate. he final rate appears
as the Passing Rate.
Once this is completed, the packet size is increased to 128 bytes, and the test is
repeated until a passing rate is achieved. Subsequent tests are performed using default
packet sizes of 256, 512, 1024, 1280, and 1518 bytes, or any user-defined sizes.
When performing a throughput test, you can adjust the following parameters to fine-tune
your test results:
•
Accept Lost Rate
– Defines the percentage of frames that can be lost without
being considered a failure.
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