D-Link DES-3624 - Switch - Stackable User manual - page 196
Stackable NWay Ethernet Switch User’s Guide
♦ Fragments The number of packets less than 64 bytes
with either bad framing or an invalid CRC. These are
normally the result of collisions.
♦ Jabber The number of frames with length more than
1536 bytes and with CRC error or misalignment (bad
framing).
♦ Late Collision Counts collisions that occur at or after
the 64
th
byte (octet) in the frame. This may indicate
that delays on your Ethernet are too long, and you
have either exceeded the repeater count or cable length
specified in the Ethernet standard.
♦ MAC Rx Error Counts data errors detectable as
10BASE-TX “symbol errors,” bit patterns with illegal
encodings. This may indicate noise on the line.
♦ Dropped Frames The number of frames which are
dropped by this port since the last Switch reboot.
♦ Undersize Frames The number of frames detected
that are less than the minimum permitted frame size of
64 bytes and have a good CRC. Undersize frames
usually indicate collision fragments, a normal network
occurrence.
♦ Total Errors The sum of the CRC Error, Oversize
Frames, Fragments, Jabber, Late Collision, MAC Rx
Error, Dropped Frames, and Undersize Frames
counters.
♦ Collisions The best estimate of the total number of
collisions on this Ethernet segment.
176 Web-Based
Network
Management