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Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007
Chapter18 DLPs F300 to F399
DLP- F395 Change the STM-N Port ALS Maintenance Settings
DLP-F395 Change the STM-N Port ALS Maintenance SettingsNote For the default values and domains of user-provisionable card settings, refer to the “Network Element
Defaults” appendix in the Cisco ONS15600 SDH Reference Manual.
Step1 In node view, double-click the STM-16, STM-64, or ASAP card where you want to change the ALS
maintenance settings.
Step2 Click the Maintenance > ALS tabs.
Step3 Modify any of the settings described in Table18-9 by clicking in the field you want to modify. In some
fields you can choose an option from a drop-down list; in others you can type a value or select and
deselect a check box. The provisionable parameters are listed in the options column in the table.
Step4 Click Apply. If the change affects traffic, a warning message appears. Click Yes to complete the change.
Purpose This task changes the automatic laser shutdown (ALS) maintenance
settings for the STM-N ports. This feature is available for STM-16,
STM-64, and ASAP cards.
Tools/Equipment None
Prerequisite Procedures DLP-F181 Log into CTC, page 16-34
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
Table18-9 STM-N Maintenance Settings
Parameter Description Options
Port number (Display only) Port number —
ALS Mode Automatic laser shutdown mode. ALS
provides the ability to shut down the TX
laser when the RX detects a loss of signal
(LOS).
From the drop-down list, choose one
of the following:
•Disable—Deactivates ALS.
•Auto Restart—(Default) ALS is
active. The power is automatically
shut down when needed and the
laser automatically tries to restart
using a probe pulse until the cause
of the failure is repaired.
•Manual Restart—ALS is active,
but the laser must be manually
restarted when conditions that
caused the outage are resolved.
•Manual Restart for
Test—Manually restarts the laser
for testing.