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Fat AP and Cloud AP V200R010C00 Command Reference

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als restart pulse-width

als restart pulse-width


The als restart pulse-width command sets the ALS pulse width for the laser of an optical module.

The undo als restart pulse-width command restores the default ALS pulse width for the laser of an optical module.

By default, the ALS pulse width of the laser is 2s.


als restart pulse-width pulse-width

undo als restart pulse-width


Parameter Description Value

Specifies the ALS pulse width of the laser.

The value is an integer that ranges from 2 to 200, in seconds.


XGE interface view, port group view

Default Level

2: Configuration level

Usage Guidelines

The ALS pulse width refers to the period between rising edges of pulses. A short ALS pulse width is beneficial for energy saving, but the fiber link recovery cannot be detected immediately. In contrary, a long ALS pulse width consumes more power but the fiber link recovery can be detected immediately.


# Set the ALS pulse width on interfaces XGigabitEthernet0/0/1 to 3s.

<Huawei> system-view
[Huawei] interface xgigabitethernet 0/0/1
[Huawei-XGigabitEthernet0/0/1] als restart pulse-width 3
Updated: 2019-11-21

Document ID: EDOC1100064352

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