3Com Switch 8800 Advanced Software V5 Configuration Guide

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IPV6 OSPFV3 CONFIGURATION
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The term "router" refers to a router in a generic sense or an Ethernet switch
running routing protocols in this document.
When configuring OSPF, go to these sections for information you are interested in:
■ “Introduction to OSPFv3” on page 353
■ “IPv6 OSPFv3 Configuration Task List” on page 355
■ “Configuring OSPFv3 Basic Functions” on page 356
■ “Configuring OSPFv3 Area Parameters” on page 357
■ “Configuring OSPFv3 Routing Information Management” on page 358
■ “Tuning and Optimizing an OSPFv3 Network” on page 360
■ “Displaying and Maintaining OSPFv3” on page 363
■ “OSPFv3 Configuration Examples” on page 363
■ “Troubleshooting OSPFv3 Configuration” on page 370
Introduction to
OSPFv3
OSPFv3 Overview OSPFv3 is OSPF (Open Shortest Path First) version 3 for short, supporting IPv6 and
compliant with RFC2740 (OSPF for IPv6).
Identical parts between OSPFv3 and OSPFv2:
■ 32 bits router ID and area ID
■ Packets: Hello, DD (Data Description), LSR (Link State Request), LSU (Link State
Update), LSAck (Link State Acknowledgment)
■ Mechanisms for finding neighbors and establishing adjacencies
■ Mechanisms for LSA flooding and aging
Differences between OSPFv3 and OSPFv2:
■ OSPFv3 now runs on a per-link basis, instead of on a per-IP-subnet basis.
■ OSPFv3 supports multiple instances per link.
■ OSPFv3 identifies neighbors by Router ID, while OSPFv2 by IP address.
OSPFv3 Packets OSPFv3 has also five types of packets: hello, DD, LSR, LSU, and LSAck.