OSPFv3 Features
The latest version of the OSPF protocol. It supports both IPv4 and IPv6 address families. its Protocol ID 89. Supports multiple instances on a link. New LSA types have been introduced to carry out IPv6 prefixes.
Includes a new link-state type field that is used to :
- Determine the flooding scope of LSA
- Handling of unknown LSA types
Configuring OSPF For IPv6 – OSPFv3 in Cisco
Prerequisites: OSPF Implementation and Open Shortest Path First (OSPF) protocol States
Open Shortest Path First (OSPF) is a link-state routing protocol used to find the best path between the source and destination router using its own shortest path first). OSPF was developed by the Internet Engineering Task Force (IETF) as one of the Internal Gateway Protocols (IGP), i.e., a protocol aimed at moving packets within a large autonomous system or routing domain. . It is a network layer protocol that operates on protocol number 89 and uses the AD value 110. OSPF uses the multicast address 224.0.0.5 for normal communication and 224.0.0.6 for updates to the Designated Router (DR)/ Backup Designated Router (BDR).