Finisar Surveyor - Manual (Page 316)

10-112
Surveyor
User’s Guide
Jabber Frame
Counter
The Jabber Frame counter increments when a frame has a CRC error and is greater
than 1518 bytes in length. A count of all Jabber Frames is included in the Bad
Frames counter that displays in the Overview counters of Expert View. The Jabber
counter is used for Expert Alarms.
Expert Symptom
Jabber Frame events are automatically logged as expert symptoms. The Symptom
Summary field contains the following information:
CRC error with more than 1518 bytes
Diagnostic Details
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Problem Description:
A packet with more than 1518 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.