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Configuration Guide - IP Unicast Routing

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

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 OSPF to Filter Received Routes

Configuring OSPF to Filter Received Routes

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run ospf [ process-id ]

    The OSPF process view is displayed.

  3. Run filter-policy { acl-number | acl-name acl-name | ip-prefix ip-prefix-name | route-policy route-policy-name [ secondary ] } import

    OSPF is configured to filter received routes.

    • The parameter acl-number specifies the number of a basic ACL.
    • The parameter acl-name acl-name specifies the name of an ACL.
    • The parameter ip-prefix ip-prefix-name specifies the name of an IP prefix list.

    OSPF is a link-state dynamic routing protocol, with routing information carried in LSAs. Therefore, the filter-policy import command cannot be used to filter advertised or received LSAs.

    The filter-policy import command is used to filter the routes calculated by OSPF. Only routes that pass the filtering criteria are added to the routing table. Routes that do not pass the filtering criteria are not added to the OSPF routing table but can be advertised.

  4. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100074760

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