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S600-E V200R013C00 Configuration Guide - IP Unicast Routing

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, Routing Policy, IP Routing Table Management, and PBR.

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Configuring a DR Priority for an Interface

Configuring a DR Priority for an Interface


The DR priority on a switch interface determines whether the interface is qualified for the DR election. If the DR priority is 0, the switch cannot be elected as a DR or BDR.

Perform the following operations on the switch that runs OSPFv3.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run ospfv3 dr-priority priority [ instance instance-id ]

    A DR priority is set for the interface.

Follow-up Procedure

After the DR priority is changed, you can re-elect a DR or BDR. However, this will interrupt OSPFv3 neighbor relationships between switches and is therefore only used when necessary. The methods to re-elect a DR or BDR are as follows:

  • Restart all switches.

  • Run the shutdown and undo shutdown commands on the interface on which the OSPFv3 neighbor relationship is set up.

Updated: 2019-04-08

Document ID: EDOC1100066165

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