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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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(Optional) Configuring GR Session Parameters on the Helper

(Optional) Configuring GR Session Parameters on the Helper


  1. Run system-view

    The system view is displayed.

  2. Run ospf [ process-id ]

    The OSPF view is displayed.

  3. Run graceful-restart helper-role { [ { ip-prefix ip-prefix-name | acl-number acl-number | acl-name acl-name } | ignore-external-lsa | planned-only ] * | never }

    GR session parameters are set on the Helper.

    • The parameters ip-prefix, acl-number, and acl-name are used to configure a filtering policy. A switch enters the Helper mode only when it passes the filtering criteria in the policy.
    • The parameter ignore-external-lsa indicates that the Helper does not check AS-external LSAs. By default, the Helper checks AS-external LSAs.
    • The parameter planned-only indicates that the Helper supports only planned GR. By default, the Helper supports both planned GR and unplanned GR.
    • The parameter never indicates that the switch never enters the Helper mode.

Updated: 2019-04-08

Document ID: EDOC1100066165

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