10/100 Fast Ethernet Switch User’s Guide
56
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.
