Cisco Systems EDFA2 Operations Manual download pdf (Page 56)

FINAL DRAFT - CISCO CONFIDENTIAL

4-8

Cisco ONS 15216 EDFA2 Operations Guide

78-16033-01

Chapter 4 Provisioning Using ASH and SNMP

Set Alarm Thresholds

cerent15216Edfa

LOSHysteresis

Loss of

signal

(input

power)

hysteresis

Integer

(0 to 1000,

100

default)

Read-write Used to set the amount the input signal

must increase above the LOS Threshold

level before the alarm is cleared. This

attribute, in conjunction with the loss of

input signal alarm threshold, enables

efficient clearing of alarms. Set this

attribute at a value that is appropriate for

the application so that the alarm

condition will clear when input is stable.

Consult with the Cisco TAC to determine

the correct value for your application. As

a guideline, Cisco recommends setting

the value 1 dB above the LOS Threshold

value. With this setting, the module will

clear the alarm if it detects a signal level

of 1 dB above the current LOS Threshold

value. Valid entries are between 0 and

1000 and are in dB times 100. For

example, if the hysteresis required is 1

dB, the power alarm hysteresis is 100.

cerent15216Edfa

CtmpMin

Minimum

case

temperature

Integer

(–10 to 10,

–5 default)

Read-write Alarm notifies operations personnel if

the case temperature of the

ONS 15216 EDFA2 drops below a level

that impacts proper operation of the

optical network. The minimum case

temperature should be set at a value that

is appropriate for the intended

application and within product

specifications. Consult with the Cisco

TAC to determine the correct value for

your application. As a guideline, Cisco

recommends that minimum case

temperature be set at 1

°C. Valid entries

are between –10 and 10

°C.

cerent15216Edfa

CtmpMinHystere

sis

Minimum

case

temperature

hysteresis

Integer

(0 to 10,

1 default)

Read-write Used to set the amount that the case

temperature of the module must rise

above the minimum case temperature

alarm level before the alarm is cleared.

Set the hysteresis at a value that is

appropriate for the application so that the

alarm condition clears when the input is

stable. Consult with the Cisco TAC to

determine the correct value for your

application. As a guideline, Cisco

recommends that the hysteresis value be

set at 1

°C. Valid entries are between 0

and 10

°C. Setting this value to 0 disables

this option.

Table 4-1 Alarm Threshold Attribute Definitions (continued)

Attribute

Variable

Definition Syntax

Maximum

Access Description

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 279 280

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