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S12700 V200R013C00 Configuration Guide - Reliability

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, NSR Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, MAC Swap Loopback Configuration, EFM Configuration, CFM Configuration, Y.1731 Configuration.

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(Optional) Configuring the DLDP-Compatible Mode

(Optional) Configuring the DLDP-Compatible Mode


This configuration is required if the device works with the following Huawei switches to provide the DLDP function:

  • S8500

  • S7800

  • S6500

  • S5600 series

  • S5100-EI

  • S3900

  • S3500 series

  • S3100 series

DLDP can be configured on Layer 2 and Layer 3 Ethernet interfaces. By default, an Ethernet interface works in Layer 2 mode. Before configuring DLDP on a Layer 3 Ethernet interface, switch the Ethernet interface to Layer 3 mode.


In compatible mode, the default BPDU MAC address carried in a DLDP packet is 010F-E200-0001.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run dldp compatible-mode enable

    The DLDP compatible mode is enabled.

    The DLDP compatible mode must be enabled or disabled on both the two interfaces.

  4. Run dldp compatible-mode local-mac mac-address

    The DLDPDUs sent in the DLDP compatible mode contain MAC addresses.

    After the DLDP compatible mode is enabled on the device, the remote device may discover multiple neighbors, which leads to DLDP flapping. The dldp compatible-mode local-mac command can prevent this problem.


    At least one bit in the MAC address must be 0, and the MAC address cannot be a multicast MAC address.

Updated: 2019-04-08

Document ID: EDOC1100065654

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