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Configuration Guide - Reliability

S2720, S5700, and S6720 V200R013C00

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

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Enabling DLDP

Enabling DLDP


Unidirectional links can be detected only when the devices on both ends of optical fibers or copper twisted pairs support DLDP functions.

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.


  1. Run system-view

    The system view is displayed.

  2. Run dldp enable

    DLDP is enabled globally.

    By default, DLDP is disabled globally and on each interface.

  3. Run interface interface-type interface-number

    The interface view is displayed.


    DLDP cannot be configured on logical interfaces.

  4. Run dldp enable

    DLDP is enabled on the interfaces.

Updated: 2019-04-04

Document ID: EDOC1100065682

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