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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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Overview of OSPFv3

Overview of OSPFv3


The Open Shortest Path First (OSPF) protocol is a link-state Interior Gateway Protocol (IGP) developed by the Internet Engineering Task Force (IETF).

OSPF Version 3 (OSPFv3), as defined in RFC 2740 and expanded in RFC 5340, is a modification of OSPFv2 allowing IPv6 support.


The primary purpose of OSPFv3 is to develop a routing protocol independent of any specific network layer. The internal routing information of OSPFv3 is redesigned to serve this purpose.

OSPFv3 and OSPFv2 differ as follows:

  • •OSPFv3 is used in IPv6, while OSPFv2 is used in IPv4.

    OSPFv3 does not insert IP-based data in the header of an IP packet or Link State Advertisement (LSA).

  • •OSPFv3 uses protocol-independent information to execute crucial tasks that originally required the use of the data in the IP packet header, for example, to identify LSAs that advertise routing data.

Updated: 2019-03-21

Document ID: EDOC1000166601

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