VeEX MPA, Руководство пользователя

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Protocol Tabs
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Scan - Displays a list of errors and alarms along with their count and
duration.
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ERR - Displays a list of errors along with their count, errored seconds,
average and current rates.
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ALARM - Displays a list of alarms along with the number of seconds spent
in the alarm condition.
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Count - Displays Packet and VLAN count statistics.
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Strm Rslt - Displays Stream ID specific statistics.
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Event - Displays a summary of error alarm activity.
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Large LEDs - Displays easy to read LEDs of error alarm activity.
What are RFC 2544 Tests?
RFC 2544 tests are used as a benchmark test for network devices. They were
developed to test throughput, latency, frame loss and burstability across a range of
packet sizes and bandwidths. RFC 2544 has become the de facto standard for
benchmarking Ethernet networks.
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Throughput Testing determines the maximum data rate which can be transported
at each of a series of packet sizes, defined by the standard, i.e. 64, 128, 256,
512, 1024, 1280, 1518 bytes. NOTE: The MPA offers the ability to send non-
standard packet sizes.
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Latency Testing measures the time interval required to transport a packet
through the device or network under test and back. Low and consistent latency is
vital for protocols such VoIP and video applications.
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Frame Loss Testing determines what percentage of frames can be sent across
the device or network under test at the series of packet sizes as listed above in
Throughput Testing.
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Back-to-Back Burst Testing determines the number of frames that can be sent in
a burst with minimum inter-packet gap through the device or network under test
without losing any frames.
The RFC 2544 methodology can be used to assess the parameters of service-level
agreements (SLAs). A carrier can then determine whether an Ethernet circuit complies
with the agreement, based on the test results.
Physical Connections
MPA_e_manual_D07-00-129P_RevA00