Operation

Performance Report

Network performance is continuously monitored and maintained in internal memory registers when the network interface is configured for ESF operation. The DSU/CSU maintains two sets of registers: Carrier Network Interface Registers (Telco) and User Network Interface Registers (User). The User registers contain an extra status register (Status Event).

These registers are accumulators or status registers that collect performance data for the previous 24-hour period.

Registers shown on the front panel LCD are listed in Table 3-11. This data is updated in 15-minute intervals. After 15 minutes, the current interval is rolled over into a set of registers that represent the previous 96 15-minute intervals for the register.

An interval total of how many of the 96 registers contain valid data is also kept, as well as a 24-hour total for each accumulator register. The relationship of the registers is shown in Figure 3-35.

Table 3-11

(1 of 2)

Performance Registers

Register

Interval Description

Totals Description

 

 

 

Event=xx,xxx

ESF error events counter. An error event is an

N/A

 

ESF frame with either a CRC error or an OOF

 

 

event. Maximum count is 65,535. This register

 

 

must be reset via a reset command from the

 

 

network. This register is valid for the current

 

 

interval only.

 

 

 

 

CurTimer

Current interval timer. Records the number of

N/A

 

seconds in the current 15-minute interval

 

 

(maximum 900 seconds). This register is valid

 

 

only for the current interval.

 

 

 

 

VldIntvl=xx

N/A

Valid interval total. Records the number of valid

 

 

15-minute intervals in the previous 24 hours

 

 

(maximum 96 intervals). This register is valid for the

 

 

24-hour total and the 15-minute interval only.

 

 

 

ES

The number of errored seconds for the current

The total number of errored seconds for the previous

 

interval (any second with one or more ESF

24 hours (maximum 65,535 seconds).

 

error events \M maximum 900 seconds).

 

 

 

 

UAS

The number of unavailable seconds for the

The total number of unavailable seconds for the

 

current interval (any one second interval when

previous 24 hours (maximum 65,535 seconds).

 

service is unavailable, maximum 900 seconds).

 

 

 

 

SES

The number of severely errored seconds for the

The total number of severely errored seconds for the

 

current interval (any second with 320 or more

previous 24 hours (maximum 65,535 seconds).

 

CRC errors or one or more OOF event,

 

 

maximum 900 seconds).

 

 

 

 

BES

The number of bursty errored seconds for the

The total number of bursty errored seconds for the

 

current interval (any second with more than

previous 24 hours (maximum 65,535).

 

one, but less than 320 CRC error, maximum

 

 

900 seconds).

 

 

 

 

LOFC

The loss of frame (LOF) count for the current

The total loss of frame count for the previous 24 hours

 

interval (a count of the number of times that an

(maximum 255).

 

LOF is declared, maximum 255 times).

 

 

 

 

3160-A2-GB22-10

December 1996

3-57

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Paradyne 316x manual Performance Report, Event=xx,xxx, CurTimer, VldIntvl=xx