Overview OSPFv3

OSPFv3 is the abbreviation of OSPF (Open Shortest Path First) Version 3. It mainly provides support for IPv6, follows RFC2328, RFC2740, and supports OSPF extensions defined by other related RFCs.

OSPFv3 is basically the same as OSPFv2, but there are some corresponding modifications for different IP protocols and address families. Their differences are mainly manifested in:

• OSPFv3 runs based on the link, and OSPFv2 runs based on the segment
• Each OSPFv3 link supports multiple instances
• OSPFv3 identifies the neighbor via Router ID, and OSPFv2 identifies the neighbor via the IP address.