Finisar Surveyor - Manual (Page 314)

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Surveyor
User’s Guide
Fragment Frame
Counter
The Fragment Frame counter increments when a frame has a CRC error and is less
than 64 bytes in length. The Fragment Frame counter is used for Expert Alarms. A
count of all Fragment Frames is included in the Bad Frames counter that displays in
the Overview counters of Expert View.
Expert Symptom
Fragment Frame events are automatically logged as expert symptoms. The
Symptom Summary field contains the following information:
CRC error with less than 64 bytes
Diagnostic Details
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Problem Description:
A packet with less than 64 bytes of data and a CRC error has been received.
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Probable Cause(s):
1. The network is overloaded, resulting in too many collisions.
2. A faulty hub/switch/router device.
3. An end station may have a faulty network interface card.
4. A protocol analyzer has been transmitting error packets.
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Recommended Action(s):
1. Find out the source device and fix the problem.