4. Maintenance
3160-A2-GB21-90 February 2001 4-9
Table 4-3. Performance Registers (1 of 2) Register Interval Description Totals 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.
N/A
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.
N/A
VldIntvl N/A Valid interval total. Records the
number of valid 15-minute intervals
in the previous
x
hours, where
x
is
24hours for aggregate performance
and 8hours for port performance.
This register is not valid for the
current interval.
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 900seconds.
The total number of errored seconds
for the previous
x
hours, where
x
is
24hours for aggregate performance
and 8hours for port performance.
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
10consecutive unavailable
seconds.) The maximum is
900seconds.
The total number of unavailable
seconds for the previous
x
hours,
where
x
is 24hours for aggregate
performance and 8hours for port
performance.
SES The number of severely errored
seconds for the current interval. A
severely errored second is any
second with 320 or more CRC
errors, or any second with one or
more OOF events. The maximum is
900 seconds.
The total number of severely errored
seconds for the previous
x
hours,
where
x
is 24hours for aggregate
performance and 8hours for port
performance.
BES The number of bursty errored
seconds for the current interval. A
bursty errored second is any
second with more than one, but less
than 320, CRC errors. The
maximum is 900 seconds.
The total number of bursty errored
seconds for the previous
x
hours,
where
x
is 24hours for aggregate
performance and 8hours for port
performance.