Testing ATM Networks
Monitoring an ATM Network
6
6-13
9. Press the
Left
or
Right Arrow
key to view the remaining ATM error displays.
These include the following:
•
ERRORS, LAST SECOND
•
BIT ERROR RATE
•
ERRORED SECONDS
•
THRESHOLD ERRD SECS
•
% SECONDS ERROR FREE
Following are two examples of displays from this list and the information they
provide:
ERRORS, LAST SECOND
CELL DELNT 0
HCS 0
za088f.eps
The
ERRORS, LAST SECOND
display gives you the number of errors received
in the previous second. Following from the previous example, this display
indicates that of the 23 cell delineation errors detected, none (
0
) occurred in
the previous second, and of the 132 header checksum errors detected, none (
0
)
occurred in the previous second.
Consider this next display:
ERRORED SECONDS
CELL DELNT 11
HCS 10
za089f.eps
The
ERRORED SECONDS
display provides the number of seconds in which
one or more errors occurred. Following from the previous example, these
results indicate that of the 23 cell delineation errors detected, there were
11
seconds in which one or more of the errors occurred, and that of the 132
header checksum errors, there were
10
seconds in which one or more of these
types of errors occurred.
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