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S12700 V200R010C00 Configuration Guide - Reliability

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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DLDP Working Process

DLDP Working Process

DLDP processes a received DLDP packet as follows:

  1. Authenticates the DLDP packet and discards the DLDP packet if it fails to be authenticated.

  2. Discards the DLDP packet if the interval for sending Advertisement packets in the DLDP packet is different from that on the local device.

  3. Processes the DLDP packet if the packet is authenticated and contains the same Advertisement interval as that configured on the local device.

For details about how DLDP detects unidirectional links, see Unidirectional Link Detection When a Single Neighbor Exists and Unidirectional Link Detection When Multiple Neighbors Exist.

For details about how DLDP processes unidirectional links, see Unidirectional Link Processing. For details about how DLDP recovers a link, see Link Auto-Recovery Mechanism.

Updated: 2019-08-21

Document ID: EDOC1000142090

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