D-Link DFE-2600 User Manual page 74

Dual-Speed Stackable Hubs User's Guide
frame delimiter is valid but less than 2 bytes are received. This type
of error may indicate noise on the line.
Late Events. This statistic counts collisions that occur at or after the
64th byte (octet) in the frame. A high count here may indicate that
delays on your Ethernet are too long, and you have either exceeded
the repeater count or cable length specified in the Fast Ethernet stan-
dard.
Runt Frames. This statistic counts frames shorter than the 64-byte
(octet) minimum defined by the Fast Ethernet standard. Runts are of-
ten caused by collisions.
Collisions. This statistic counts collisions on the Ethernet segment.
FCS Errors. This statistic counts otherwise valid frames that fail the
CRC check.
Alignment Errors. This statistic counts otherwise valid frames that
did not end on a byte (octet) boundary.
Readable Frames. This statistic counts valid frames.
Multicast. This statistic counts the number of good multicast packets
received. Multicast events are messages sent from one node to multi-
ple nodes on the segment.
Broadcast. This statistic counts the number of good broadcast pack-
ets received. Broadcast events are messages sent to all nodes on the
segment.
Auto Partitions. This statistic counts events where the port was par-
titioned off from the rest of the network due to excessive collisions or
cabling problems.
DRM (Data Rate Mismatch). This statistic counts events where
there is a frequency mismatch between the received signal and the hub
internal clock. A high count in this field may indicate a hardware
problem in the hub or in an Ethernet interface.
62 Master Hub Setup and Management