DES-3226 NWay Standalone Fast Ethernet Switch User’s Guide
• 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 200.
• 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.
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