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Maintenance
4-73160-A2-GB21-50 January 1997
Table 4-3
(1 of 2)
Performance Registers
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 24 hours for aggregate performance and 8 hours
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
900 seconds.
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.
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.
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.
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 24 hours for aggregate
performance and 8 hours 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 24 hours for aggregate
performance and 8 hours for port performance.
LOFC The loss of frame count for the current interval.
This is a count of the number of times that an
LOF is declared. The maximum count is 255.
The total loss of frame count for the previous
x
hours, where
x
is 24 hours for aggregate
performance and 8 hours for port performance.
CSS
(Not valid for
Port registers.)
The number of controlled slip seconds for the
current interval.
The total number of controlled slip seconds for the
previous
x
hours, where
x
is 24 hours for aggregate
performance and 8 hours for port performance.