D-Link DGS-3024 - Switch Manual page 139

The following fields can be set:
Parameter Description
Select the desired setting between 1s and 60s, where "s" stands for seconds. The default value
Time Interval
is one second.
Record Number Select the number of times the Switch will be polled between 20 and 200. The default value is
20.
CrcError Counts otherwise valid packets that did not end on a byte (octet) boundary.
UnderSize The number of packets detected that are less than the minimum permitted packets size of 64
bytes and have a good CRC. Undersize packets usually indicate collision fragments, a normal
network occurrence.
Counts packets received that were longer than 1518 octets, or if a VLAN frame is 1522 octets,
OverSize
and less than the MAX_PKT_LEN. Internally, MAX_PKT_LEN is equal to 1522.
Fragment The number of packets less than 64 bytes with either bad framing or an invalid CRC. These are
normally the result of collisions.
The number of packets with lengths more than the MAX_PKT_LEN bytes. Internally,
Jabber
MAX_PKT_LEN is equal to 1522.
The number of packets that are dropped by this port since the last Switch reboot.
Drop
Show/Hide Check whether or not to display Crc Error, Under Size, Over Size, Fragment, Jabber, and Drop
errors.
Clear Clicking this button clears all statistics counters on this window.
View Table Clicking this button instructs the Switch to display a table rather than a line graph.
View Line Chart Clicking this button instructs the Switch to display a line graph rather than a table.
DGS-3024 Gigabit Ethernet Switch Manual
Figure 10- 9. Rx Error Analysis window (table)
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