Counters - ProfiTap PROFISHARK 1G User Manual

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Counters

In the Counters tab are listed every counter embedded in the PROFISHARK
for both network ports. The counters are 64 bits hardware counters, they are
cleared at hardware startup only.
Statistics can be reset individually for each port or for the two ports at the
same time using the buttons on the left.
Clearing the counters using the buttons does not clear the hardware counters,
but stores all counters in reference counter. Then, the displayed counters are
result of the formula (hardware counter - reference counter).
Counters description:
size < 64 bytes: the CRC valid frames with a size under 64 bytes.
64< size < 1518: the CRC valid frames with a size over or equal to 64 bytes
and under or equal to 1518 bytes.
size > 1518 bytes: the CRC valid frames with a size over 1518 bytes.
Collisions: the CRC error frames with a size under 64 bytes.
CRC Errors: the CRC error frames with a size over or equal to 64 bytes and
under or equal to 1518 bytes.
Jabbers: the CRC errors frames with a size over 1518 bytes.
Valid frames: the CRC valid frames of any size.
Invalid frames: the CRC error frames of any size.
Total bytes: the valid frame bytes.