D-Link xStack DGS-3600 User Manual page 263

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 number of times the Switch will be polled between 20 and 200. The default value is 200.
Crc Error Counts otherwise valid packets that did not end on a byte (octet) boundary.
Under Size 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.
Over Size Counts packets received that were longer than the MAX_PKT_LEN. Internally, MAX_PKT_LEN
is equal to 1536 octets, or if a VLAN frame of 1540 octets was received.
The number of packets less than 64 bytes with either bad framing or an invalid CRC. These are
Fragment
normally the result of collisions.
Jabber Counts the error packets that were received that exceeded 1518 bytes, or for VLAN frames,
1522 bytes, and less than the MAX_PKT_LEN. The MAX_PKT_LEN is equal to 1536 bytes, and
1540 bytes for a VLAN frame.
Drop The number of packets that are dropped by this port since the last Switch reboot.
Symbol Counts the number of packets received that have errors received in the symbol on the physical
labor.
Show/Hide Check whether or not to display Crc Error, Under Size, Over Size, Fragment, Jabber, and Drop
errors.
Clicking this button clears all statistics counters on this window.
Clear
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.
xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch
Figure 12- 12. Rx Error Analysis window (table)
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