DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
200.
ExDefer
Counts the number of packets for which the first transmission attempt on a particular
interface was delayed because the medium was busy.
CRC Error
Counts otherwise valid packets that did not end on a byte (octet) boundary.
LateColl
Counts the number of times that a collision is detected later than 512 bit-times into the
transmission of a packet.
ExColl
Excessive Collisions. The number of packets for which transmission failed due to excessive
collisions.
SingColl
Single Collision Frames. The number of successfully transmitted packets for which
transmission is inhibited by more than one collision.
Coll
An estimate of the total number of collisions on this network segment.
Show/Hide
Check whether or not to display ExDefer, LateColl, ExColl, SingColl, and Coll 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.
Packet Size
The Web Manager allows packets received by the Switch, arranged in six groups and classed by size, to be viewed as either a line
graph or a table. Two windows are offered. To select a port to view these statistics for, select the port by using the Port pull-down
menu. The user may also use the real-time graphic of the Switch at the top of the web page by simply clicking on a port.
Figure 11- 13. Rx Size Analysis window (line graph)
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