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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 13

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Energy-Saving Management Configuration

Energy-Saving Management Configuration

Configuring ALS

You can configure ALS for optical interfaces to control the pulse of an optical module's laser. When the fiber of an optical interface is not properly installed or the connected optical link fails, the laser is shut down to save energy and prevent eye damage.

Enabling ALS on an Interface

Context

The constraints on ALS are as follows:
  • Only optical interfaces support ALS. Electrical interfaces do not support ALS.

  • When optical interfaces transmit services unidirectionally, they do not support ALS.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    als enable

    ALS is enabled on an interface.

    After ALS is enabled on an interface, ALS takes effect on this interface.

    By default, ALS is disabled on an interface.

  4. Run:

    commit

    The configuration is committed.

Setting the Restart Mode of the Laser

Context

After ALS is enabled, the laser is automatically shut down when a fiber is not properly installed on an interface or the connected optical link fails. However, the laser still needs to send pulses at a certain interval. When a fiber is installed on an interface or the connected optical link recovers, the laser is automatically restored to set up a connection for data communication. Therefore, you need to configure the restart mode of the laser after ALS is enabled.

The laser of an optical module works in automatic restart mode or manual restart mode.
  • Automatic restart mode: The laser automatically sends a pulse at an interval to detect whether the link recovers.

  • Manual restart mode: When a fiber is installed or an optical link recovers, you must start the laser manually. Then the laser sends a pulse to detect whether the link recovers.

By default, a laser works in automatic restart mode.

Procedure

  • Configure automatic restart mode

    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface—number

      The interface view is displayed.

    3. Run:

      als restart mode automatic

      The laser of the optical module is configured to work in automatic restart mode.

      By default, a laser works in automatic restart mode.

    4. Run:

      commit

      The configuration is committed.

  • Configure manual restart mode

    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface—number

      The interface view is displayed.

    3. Run:

      als restart mode manual

      The laser of the optical module is configured to work in manual restart mode.

    4. Run:

      commit

      The configuration is committed.

    5. Run:

      als restart

      The laser of the optical module is started manually.

      After a fiber is installed on the interface or the connected optical link recovers, you must use this command to manually start the laser of the optical module.

Setting the ALS Pulse Interval and Width of the Laser

Context

The ALS pulse interval indicates the time between two consecutive pulse transmissions and applies to the automatic restart mode. The ALS pulse width indicates the pulse period and applies to the automatic restart mode and manual restart mode.

  • In automatic restart mode, a small pulse width and a long pulse interval save more energy but cannot ensure that optical link recovery can be detected in a timely manner.

  • In manual restart mode, a small ALS pulse width saves energy but cannot ensure that optical link recovery can be detected in a timely manner. In contrary, a large ALS pulse width ensures that optical link recovery can be detected in a timely manner but wastes energy.

You can set a proper laser pulse interval and width to ensure energy conservation and timely detection of optical link recovery.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    als restart pulse interval pulse-interval

    The ALS pulse interval of the laser is set.

    By default, the ALS pulse interval is 100s.

  4. Run:

    als restart pulse width pulse-width

    The ALS pulse width of the laser is set.

    By default, the ALS pulse width is 2s.

  5. Run:

    commit

    The configuration is committed.

Checking the Configuration

Procedure

  • Run the display als { all | slot slot-id } command to check ALS configurations on the device.
  • Run the display als interface interface-type interface-number command to check ALS configuration on a specified interface.

Configuring Electrical Port Dormancy

The electrical port dormancy function can automatically shut down idle ports to save power.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    port-auto-sleep enable

    Electrical port dormancy is enabled.

    By default, electrical port dormancy is disabled.

    Only the CX110 switch module GE switching plane and CX111&CX915 switch module GE switching plane supports the configuration of the electrical port dormancy function.

Checking the Configuration

  • Run the display this command in the interface view to check whether electrical port dormancy is enabled.

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Updated: 2019-12-13

Document ID: EDOC1000041694

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