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D-Link DHS-3224V Switch User’s Guide
129
Figure7- 53. Rx Error Analysis window (Table)
The information is described as follows:
Time Interval
Select the desired setting between 1s and 60s, where “s” stands for
seconds. The default value is one second.
Record Number
Select number of times the Switch will be polled between 20 and 200.
The default value is 20.
CRCError
Counts otherwise valid frames that did not end on a byte (octet)
boundary.
UnderSize
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.
OverSize
Counts packets received that were longer than 1518 octets, or if a
VLAN frame, 1522 octets 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.
Jabber
The number of frames with lengths more than the MAX_PKT_LEN
bytes. Internally, MAX_PKT_LEN is equal to 1522
Drop
The number of frames which are dropped by this port since the last
Switch reboot.
Show/Hide
Check whether or not to display CrcError, UnderSize, OverSize,
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.