D-Link DFE-2624iX User Guide - 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 standard. ♦ Runt Frames. This statistic counts frames shorter than the 64-byte (octet) minimum defined by the Fast Ethernet standard. Runts are often 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 multiple nodes on the segment. ♦ Broadcast. This statistic counts the number of good broadcast packets received. Broadcast events are messages sent to all nodes on the segment. ♦ Auto Partitions. This statistic counts events where the port was partitioned 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