D-Link DES-3250TG, Руководство пользователя

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D-Link DES-3250TG Standalone Layer 2 Switch
Figure 9- 10. Rx Error Analysis window (table)
The following fields can be set:
Parameter Description
Time Interval [ 1s ] Select the desired setting between 1s and 60s ,
where “s” stands for seconds. The default
value is one second.
Record Number [ 200 ] 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.
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