No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE40E-M2 V800R010C10SPC500 Configuration Guide - WAN Access 01

This is NE40E-M2 V800R010C10SPC500 Configuration Guide - WAN Access
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring a Working Mode for an LMSP Group

Configuring a Working Mode for an LMSP Group

A working mode can be configured for an LMSP group. The NE40E supports LMSP working modes, including automatic LMSP switching and a delayed switchback with the wait to restore (WTR) time configured. An LMSP working mode must be configured on a protection interface.

Context

Automatic LMSP switching modes are classified as 1:1 bidirectional or 1+1 unidirectional.

After a fault in the working link is rectified, services automatically switch from the protection link to the working link. During the switchback, some service traffic is dropped because some resources related to the working link or NE40E are being restored. To prevent service loss, the WTR time can be set on the NE40E to delay a switchback. Services can automatically switch from the protection link back to the working link in the specified WTR time after the working link becomes available.

Perform the following steps on a protection interface in an LMSP group:

Procedure

  • Configure an automatic protection switching mode for an LMSP group.
    1. Run system-view

      The system view is displayed.

    2. To display the interface view, run either of the following command:

      • interface interface-type interface-number
      • controller cpos cpos-number

    3. Run aps mode { one2one bidirection | one-plus-one { bidirection | unidirection } }

      A working mode is configured for the LMSP group. One of the following modes can be configured:

      • one2one bidirection:
        • Configures LMSP to work in 1:1 mode. Only the working link transmits traffic. The protection link only carries traffic if the working link is faulty.
        • Configures LMSP to work in bidirectional mode. If an interface fails, both the transmit and receive ends switch their traffic to the protection link.
      • one-plus-one unidirection:
        • Configures LMSP to work in 1+1 mode. Both the working link and the protection link transmit traffic.
        • Configures LMSP to work in unidirectional mode. If an optical fiber to an interface fails, only the receive end switches its traffic to the protection link.
      • one-plus-one bidirection:
        • Configures LMSP to work in 1+1 mode. Both the working link and the protection link transmit traffic.
        • Configures LMSP to work in bidirectional mode. If an interface fails, both the transmit and receive ends switch their traffic to the protection link.

  • Set the WTR time for an LMSP group.
    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-numbercontroller cpos cpos-number

      Or, run:

      The protection interface view of the LMSP group is displayed.

    3. Run aps revert wtr-time

      The WTR time is set for the LMSP group.

      The value ranges from 1 to 12 minutes.

      NOTE:

      If two different switchback delays are set on two protection interfaces in LMSP groups on two ends of a link, the effective switchback delay depends on one of the following situations:

      • If one-plus-one unidirection is configured, the switchback delays on both protection interfaces take effect after the working interfaces recover.
      • If one2one bidirection or one-plus-one bidirection is configured, the switchback delay on the protection interface of the device with the working interface recovering later than the other working interface takes effect on both protection interfaces.
      • In a single-chassis scenario, the switchback time must be the same on two LMSP devices.

Download
Updated: 2019-01-02

Document ID: EDOC1100058399

Views: 15551

Downloads: 43

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next