HP 30-10022-01 Loop Switch User Guide (5697-5674, May 2006)

34 Switch Management
The Frame Counts statistic page displays the following information:
The Class 2 Traffic, Class 3 Traffic, Class F Traffic, and All Traffic statistic pages display the following
information:
Diagnostic Description
CRC Errors The number of Cyclic Redundancy Check (CRC) errors that are detected in frames
passing through the port since the last switch reset or since the counters were cleared.
CRC errors can be caused by the following conditions:
• Connection problems with a remote device
• Link data corruption caused by a high number of Invalid TX words
• Bad cabling or other electromagnetic interference
• Partial SFP insertion
Short Frames The number of frames that are shorter than the minimum allowed frame size.
Long Frames The number of frames that have exceeded the maximum allowed frame size.
Invalid Words The number of invalid 10-bit words received on the port. This is typically caused by a
link corruption such as a code violation (10b/8b decoding), framing error, or a disparity
error.
Missing SOF/EOF The number of frames that are missing their Start-of-Frame (SOF) and/or
End-of-Frame (EOF) ordered sets.
Figure 17 Advanced Statistics Frame Counts page