5.1 OSPFv3 Overview
OSPFv3 uses the same implementation mechanism as OSPFv2 but is not compatible with
OSPFv2.
The Open Shortest Path First Version 3.0 (OSPFv3) supports the version 6 of the Internet
Protocol (IPv6). OSPFv3 conforms to RFC 2740 (OSPF for IPv6).
OSPFv3 and OSPFv2 have the following in common:
l 32-bit Router ID, Area ID, and Link State Advertisement (LSA) link-state ID
l Five types of packets such as Hello, Database Description (DD), Link State Request (LSR),
Link State Update (LSU), and Link State Acknowledgement (LSAck) packets
l Neighbor discovery and adjacency establishment mechanisms
l Flooding and aging mechanisms of LSAs
l LSA types
OSPFv3 and OSPFv2 differ as follows:
l OSPFv3 runs based on a link; OSPFv2 runs based on a network segment.
l OSPFv3 can run multiple instances on the same link.
l The topology of OSPFv3 is independent of IPv6 address prefixes.
l OSPFv3 identifies its neighbors with the IPv6 link-local addresses.
l OSPFv3 has three new types of LSA flooding scopes.
5.2 OSPFv3 Features Supported by S6700
The S6700 supports various OSPFv3 features, including multi-process.
The S6700 supports the following OSPFv3 features:
l Basic features stipulated in RFC 2740
l OSPFv3 stub areas
l OSFPv3 multi-process
l Multiple OSPFv3 processes can run on a switch.
5.3 Configuring Basic OSPFv3 Functions
Before building OSPFv3 networks, you need to configure basic OSPFv3 functions.
5.3.1 Establishing the Configuration Task
You need to enable OSPFv3 and specify interfaces and area IDs before configuring other
functions.
Applicable Environment
Enable the OSPFv3 process and specify its router ID before configuring OSPFv3; otherwise,
other functions cannot take effect.
S6700 Series Ethernet Switches
Configuration Guide - IP Routing 5 OSPFv3 Configuration
Issue 01 (2012-03-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
187
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