Optional) Setting The Restart Mode Of The Laser; Optional) Starting The Laser Manually - Huawei Quidway S3700 Series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Device Management
Step 3 Run:
als enable
ALS is enabled on the interface.
By default, ALS is disabled on an interface.
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10.3.3 (Optional) Setting the Restart Mode of the Laser

The laser can work in automatic restart mode or manual restart mode. By default, the laser works
in automatic restart mode.
Prerequisite
ALS is enabled on the interface.
Context
If the laser of an optical module works in automatic restart mode, the laser starts automatically
at ALS pulse intervals. If the laser of an optical module is set to work in manual restart mode,
you must start the laser manually. Then the laser sends a pulse.
If the fiber link recovery is detected in time, you can use the manual restart mode so that the
laser can send pulses immediately. Therefore, data communication can be recovered rapidly.
By default, the laser works in automatic restart mode after ALS is enabled on all the interfaces.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
als restart mode manual
The restart mode of the laser is set to manual.
The ALS pulse width of the interface in manual restart mode is the same as that in automatic
restart mode.
----End

10.3.4 (Optional) Starting the Laser Manually

When the laser works in automatic restart mode, you need to manually open the laser so that the
laser sends one pulse.
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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