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Packet over SDH (POS)
Throughput Testing
Throughput Testing
Description
Packet over SDH chipsets and line cards will have performance limits imposed by
the hardware architecture and by the size and management of buffers. To test these
components it will be necessary to check that IP packets can be passed at the
following:
• Minimum packet size and/or
• Maximum packet rate.
Using the OmniBER you can generate a continuous stream of packets of any size,
and with any inter-packet gap.
In the following example the OmniBER is set up to generate a packet stream of
75-byte IP packets with a 17-byte gap between packets. The instrument displays (at
the bottom of the screen) the actual transmitted packet rate in packets/s (2995200).
To obtain the desired packet rate it is necessary to understand the factors
determining packet rate, this is explained in the following text.
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