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


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


Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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).
Maintaining Ethernet Interfaces

Maintaining Ethernet Interfaces

This section describes how to maintain Ethernet interfaces, including using the loopback function to check the interface and deleting interface statistics.

Configuring Loopback Detection


  • After the loopback detection is enabled on an interface using the loopback command, the Ethernet interface or link on the interface cannot function properly. When the loopback detection test is complete, run the undo loopback command to disable it immediately.

Loopback detection needs to be enabled for special function testing, for example, Ethernet interface diagnosis. When loopback detection is enabled on an Ethernet interface, the interface works in the full-duplex mode. When loopback detection is disabled, the interface restores to the default configuration.

Table 6-8 describes the loopback detection classification.
Table 6-8  Loopback detection classification



Internal loopback

Packets sent from an interface are sent back to the local device.

Remote loopback

The local interface does not forward packets received from the remote interface based on their destination addresses. Instead, it sends the packets back to the remote interface.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    loopback { internal | remote }

    Loopback detection is configured on the Ethernet interface.

    By default,loopback detection is disabled on an Ethernet interface.

Clearing Interface Statistics


To monitor the status of an interface or locate faults on the interface, collect traffic statistics on the interface. Before collecting traffic statistics on an Ethernet interface, clear the existing traffic statistics on this interface.

Interface statistics cannot be restored after they are cleared. Confirm your action before you perform the operations.


  • Run the reset counters interface [ interface-type [ interface-number ] ] command to clear interface statistics.
  • Run the reset counters if-mib interface [ interface-type [ interface-number ] ] command to clear statistics on the network management interface.
Updated: 2019-01-11

Document ID: EDOC1000176006

Views: 117512

Downloads: 309

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