Finisar Surveyor - Manual (Page 323)

10-119
Expert Features
MAC Layer
10
Runt Frame
Counter
The Runt Frame counter increments when a frame is less than 64 bytes in length.
The Runt Frame counter is used for Expert Alarms. A count of all Runt Frames is
included in the Bad Frames counter that displays in the Overview counters of
Expert View.
Expert Symptom
Runt Frame events are automatically logged as expert symptoms. The Symptom
Summary field contains the following information:
Runt frame has less than 64 bytes
Diagnostic Details
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Problem Description:
A packet with less than 64 bytes of data has been received.
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Probable Cause(s):
1. A faulty hub/switch/router device.
2. An end station may have a faulty network interface card.
3. 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.