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.


Configuration Guide - VPN

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of VPN, including GRE, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, and VPLS.
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).
Enabling MAC Address Withdraw

Enabling MAC Address Withdraw


The local device cannot detect failure of the AC. When the AC is Down, the VSI remains Up and the device does not delete the corresponding MAC address entry. This results in a black hole when the local device sends data flows to the remote device. The MAC address withdraw function solves this problem by enabling the local VSI to delete the local MAC address and notify all remote peers when AC is faulty and the VSI remains Up.


  1. Run system-view

    The system view is displayed.

  2. Run vsi vsi-name [ static ]

    The VSI view is displayed.

  3. Run pwsignal ldp

    LDP is configured as the PW signaling protocol and the VSI-LDP view is displayed.

  4. Run mac-withdraw enable

    MAC address withdraw is enabled.

    By default, MAC address withdraw is disabled.

  5. Run interface-status-change [ up | down ] mac-withdraw enable

    The PE is configured to send LDP MAC Withdraw messages to all peers when the status of the AC-side interface bound to the VSI changes.

    By default, the PE does not send LDP MAC Withdraw messages to all peers when the status of the AC-side interface bound to the VSI changes.

  6. Run commit

    The configuration is committed.

Updated: 2019-04-03

Document ID: EDOC1100075353

Views: 14401

Downloads: 25

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