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AR500, AR510, and AR530 V200R007 Commands Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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Energy-saving Configuration Commands

Energy-saving Configuration Commands

NOTE:

The AR500 series does not support Energy-Saving Management.

als

Function

The als command enables ALS on an interface.

The undo als command disables ALS on an interface.

By default, ALS is disabled on an interface.

Format

als

undo als

Parameters

None

Views

Ethernet interface view, GE interface view

Default Level

2: Configuration level

Usage Guidelines

Only optical interfaces support ALS, and electrical interfaces do not support ALS.

Example

# Enable ALS on GigabitEthernet1/0/0.

<Huawei> system-view
[Huawei] interface gigabitethernet 1/0/0
[Huawei-GigabitEthernet1/0/1] als
Related Topics

als restart

Function

The als restart command manually restarts the laser of an interface.

Format

als restart

Parameters

None

Views

Ethernet interface view, GE interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When the laser of an optical module works in manual restart mode, if the faulty fiber link is recovered, you need to manually open the laser so that the laser sends one pulse to clear LOS of the optical interface. Then the data communication is recovered.

Prerequisites

ALS has been enabled on the interface using the als command and the restart mode of the laser has been set to manual restart mode using the als restart mode command.

Example

# Restart lasers on GigabitEthernet1/0/0 manually.

<Huawei> system-view
[Huawei] interface gigabitethernet 1/0/0
[Huawei-GigabitEthernet1/0/1] als
[Huawei-GigabitEthernet1/0/1] als restart mode manual
[Huawei-GigabitEthernet1/0/1] als restart
Related Topics

als restart mode

Function

The als restart mode command sets the mode of restarting the laser of the optical module.

By default, a laser works in automatic restart mode.

Format

als restart mode { manual | automatic }

Parameters

Parameter Description Value
manual

Sets the mode of restarting the laser of the optical module to manual.

-

automatic

Sets the mode of restarting the laser of the optical module to automatic.

-

Views

Ethernet interface view, GE interface view

Default Level

2: Configuration level

Usage Guidelines

The laser of an optical module works in automatic restart mode or manual restart mode.
  • In automatic restart mode, the laser sends pulses at the interval set using the als restart pulse interval pulse-interval command to detect whether the link is recovered. The pulse width is set through the als restart pulse width pulse-width command.

  • In manual restart mode, you must manually start the laser using the als restart command so that the laser can send a pulse. The ALS pulse width is set using the als restart pulse width pulse-width command.

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.

Example

# Configure lasers on GigabitEthernet1/0/1 to work in manual restart mode.

<Huawei> system-view
[Huawei] interface gigabitethernet 1/0/1
[Huawei-GigabitEthernet1/0/1] als restart mode manual

als restart pulse

Function

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

By default, the ALS pulse width of the laser is 2s, the ALS pulse interval of the laser is 100s.

Format

als restart pulse { width pulse-width | interval pulse-interval }

Parameters

Parameter Description Value
width pulse-width

Specifies the ALS pulse width of the laser.

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

interval pulse-interval

Specifies the ALS pulse interval of the laser.

The value is an integer that ranges from 100 to 20000, in seconds.

Views

Ethernet interface view, GE interface 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.

In automatic restart mode, the ALS pulse interval affects the frequency of detecting the LOS on the interface. A long ALS pulse interval is beneficial for energy saving, but the fiber link recovery cannot be detected in a timely manner. In contrary, a short ALS pulse interval wastes power but the fiber link recovery can be detected immediately.

Example

# Set the ALS pulse width on GigabitEthernet1/0/1 to 3s.

<Huawei> system-view
[Huawei] interface gigabitethernet 1/0/1
[Huawei-GigabitEthernet1/0/1] als restart pulse width 3

# Set the ALS pulse interval of lasers on GigabitEthernet1/0/1 to 150s.

<Huawei> system-view
[Huawei] interface gigabitethernet 1/0/1
[Huawei-GigabitEthernet1/0/1] als restart pulse interval 150
Related Topics

display als

Function

The display als command displays ALS configuration.

Format

display als all

display als controller

display als interface interface-type interface-number

Parameters

Parameter Description Value
all

Displays ALS configuration on all interfaces.

-

interface interface-type interface-number
Displays ALS configuration on a specified interface.
  • interface-type specifies the interface type.

  • interface-number specifies the interface number.

-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

None

Example

# Display ALS configuration on GigabitEthernet1/0/0.

<Huawei> display als interface gigabitethernet 1/0/0
Interface                      Mode     Pulse Interval Pulse Width              
GigabitEthernet1/0/0           AUTO     100            2          
Table 3-47  Description of the display als command output

Item

Description

Interface

Interface type and number.

Mode

ALS restart mode.
  • AUTO: automatic restart mode.

  • MANUAL: manual restart mode.

The ALS restart mode is set to manual using the als restart mode command.

Pulse Interval

ALS pulse interval, expressed in seconds. The ALS pulse interval is set using the als restart pulse interval pulse-interval command.

Pulse Width

ALS pulse width, expressed in seconds. The ALS pulse width is set using the als restart pulse width pulse-width command.

energy-efficient-ethernet enable

Function

The energy-efficient-ethernet enable command enables the Energy Efficient Ethernet (EEE) function on an electrical interface.

The undo energy-efficient-ethernet enable command disables the EEE function on an electrical interface.

By default, EEE is disabled on an electrical interface.

Format

energy-efficient-ethernet enable

undo energy-efficient-ethernet enable

Parameters

None

Views

Ethernet interface view, GE interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The system provides power for each interface. Even though an interface is idle, it consumes the same power as working interfaces. The energy-efficient-ethernet enable command enables the system to reduce the power on an interface when the interface is idle and restore the power when the interface starts to transmit data. This reduces system power consumption.

Prerequisites

If an electrical interface works in non-auto negotiation mode, run the negotiation auto command to enable auto-negotiation.

Precautions

The EEE function can be configured only on electrical interfaces. Optical interfaces or combo interfaces do not support the EEE function.

Ethernet electrical interfaces on AR513W-V3M8 support the EEE function.

Example

# Enable the EEE function on electrical interface Eth0/0/1.

<Huawei> system-view
[Huawei] interface ethernet 0/0/1
[Huawei-Ethernet0/0/1] 
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Updated: 2019-05-29

Document ID: EDOC1000097293

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