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3166-A2-GB20-20
9. When you have selected the number of the interval you want to display, press
F3 (Dsply) to display the registers for the interval selected. Use the scroll
keys to view additional register information.
User Intvl: xx
ES= xxx
F1
Table 4-3. Performance Registers (1 of 3)
Register
Interval Description
Event
ESF error events counter. An error
event is an ESF frame with either a
Cyclic Redundancy Check (CRC)
error or an Out Of Frame (OOF)
event. The maximum count is
65,535. This register is only reset
as a result of a reset command
from the network. This register is
valid for the current interval only.
CurTimer
Current interval timer. This register
records the number of seconds in
the current 15-minute interval. The
maximum is 900 seconds. This
register is valid for the current
interval only.
VldIntvl
N/A
ES
The number of errored seconds for
the current interval. An errored
second is any second with one or
more ESF error events. The
maximum is 900 seconds.
UAS
The number of unavailable
seconds for the current interval. An
unavailable second is any one
second interval when service is
unavailable. (Detection occurs with
10 consecutive unavailable
seconds.) The maximum is
900 seconds.
March 1999
F2
F3
Totals Description
N/A
N/A
Valid interval total. Records the
number of valid 15-minute intervals
in the previous x hours, where x is
24 hours for aggregate
performance and 8 hours for port
performance. This register is not
valid for the current interval.
The total number of errored
seconds for the previous x hours,
where x is 24 hours for aggregate
performance and 8 hours for port
performance.
The total number of unavailable
seconds for the previous x hours,
where x is 24 hours for aggregate
performance and 8 hours for port
performance.
Monitoring and Testing
4-7
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