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Configuration Guide - IP Unicast Routing

CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, and PBR.

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Configuring a Route Calculation Delay to Suppress Frequent LSA Flapping

Configuring a Route Calculation Delay to Suppress Frequent LSA Flapping


Frequent OSPFv3 LSA flapping may lead to route flapping, adversely affecting services. To address this problem, run the maxage-lsa route-calculate-delay command to configure the device to delay route calculation when it receives a MaxAge Router LSA, which suppresses the frequent OSPFv3 LSA flapping that may occur.


  1. Run system-view

    The system view is displayed.

  2. Run ospfv3 [ process-id ]

    The OSPFv3 view is displayed.

  3. Run maxage-lsa route-calculate-delay delay-interval

    A route calculation delay is configured and will be triggered when the device receives a MaxAge Router LSA.

    By default, the delay is 20s.

  4. Run commit

    The configuration is committed.

Verifying the Configuration

Run the display ospfv3 [ process-id ] statistics maxage-lsa command to display information about MaxAge Router LSAs.

Updated: 2019-03-21

Document ID: EDOC1000166601

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