DGS-3024 Gigabit Ethernet Switch Manual
Figure 10- 9. Rx Error Analysis window (table)
The following fields can be set:
Parameter Description
Time Interval
Select the desired setting between 1s and 60s, where "s" stands for seconds. The
default value 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.
OverSize
Counts packets received that were longer than 1518 octets, or if a VLAN frame is
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 packets with lengths more than the MAX_PKT_LEN bytes. Internally,
MAX_PKT_LEN is equal to 1522.
Drop
The number of packets that are dropped by this port since the last Switch reboot.
Show/Hide
Check whether or not to display Crc Error, Under Size, Over Size, Fragment, Jabber,
and Drop errors.
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