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10/100 Fast Ethernet Switch User’s Guide
52
Using the Console Interface
Figure 6-17. Statistics Counters
The statistic counters displayed are defined as follows:
♦
MAC Rx Errors (MAC Received Errors):
The number of frames
with received MAC Errors (assertion of RXEr).
♦
CRC Errors:
The number of frames with valid packet length and
misalignment (or odd number of nibbles).
♦
Oversize Frames:
The number of good frames with length greater
than 1518 bytes and therefore are greater than the maximum legal
length.
♦
Fragments:
The number of good frames with length less than the
64-byte (octet) minimum defined by the Ethernet standard. These are
usually caused by collisions.
♦
Jabber:
The number of frames with length more than 1518 bytes
and with CRC error or misalignment (bad framing).
♦
Collisions:
The number of collision errors.
♦
Late Collisions:
The number of collisions that occur at or after the
64
th
byte (octet) in the frame.