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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) Setting the Interval for Sending Advertisement Packets

(Optional) Setting the Interval for Sending Advertisement Packets


An interface in Advertisement state sends Advertisement packets. DLDP creates a neighbor entry, starts the entry timer, and transitions to the Probe state if the neighbor entry does not exist on the remote interface. DLDP updates the entry timer if the neighbor entry exists.

The interval for sending Advertisement packets must be smaller than one third of the STP convergence time. If the interval is too long, STP loops occur when a unidirectional link is still enabled on a DLDP interface. If the interval is too short, the traffic volume on the network increases.


  1. Run system-view

    The system view is displayed.

  2. Run dldp interval interval

    The interval for sending Advertisement packets is set.

    By default, the interval for sending the Advertisement packets is 5 seconds.


    The same interval for sending Advertisement packets must be set on the local and remote devices that are connected through optical fibers or copper twisted pairs; otherwise, DLDP cannot work properly.

Updated: 2019-04-08

Document ID: EDOC1100065654

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