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CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.
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(Optional) Configuring GR Session Parameters on the Helper

(Optional) Configuring GR Session Parameters on the Helper

Procedure

  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 configured on the Helper.

    • If ACL parameters are configured, the local router can enter the Helper mode only after neighbors pass the filtering policies of ip-prefix or acl.
    • If ignore-external-lsa is configured, the Helper does not check the LSAs outside the AS (AS-external LSA). By default, the Helper checks the LSAs outside the AS.
    • If planned-only is configured, the Helper supports only planned GR. By default, the Helper supports both planned GR and unplanned GR.
    • If never is configured, the router will not enter the Helper mode.

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Updated: 2019-05-20

Document ID: EDOC1100034072

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