Finisar Surveyor - Manual (Page 319)

10-115
Expert Features
MAC Layer
10
Oversized Frame
Counter
The Oversize Frame counter increments when a frame has a CRC error and is
greater than 1518 bytes in length. A count of all Oversize Frames is included in the
Bad Frames counter that displays in the Overview counters of Expert View. The
Oversize Frame counter is used for Expert Alarms.
Expert Symptom
Oversized Frame events are automatically logged as expert symptoms. The
Symptom Summary field contains the following information:
Oversized frame has more than 1518 bytes
Diagnostic Details
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Problem Description:
A packet with more than 1518 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.