Overview:
OSPFv3 has the same functionality as OSPFv2, but uses IPv6 addresses to communicate with OSPFv3 peers.
Study Notes:
-
- OSPFv3 uses the same SPF algorithm as OSPFv2
- OSPFv3 has a separate process than OSPFv2
- OSPFv3 maintains separate neighbor tables, topology tables and routing tables from OSPFv2
- Similarities
- Link State
- SPF algorithm
- Metric is cost
- Heirarchical areas
- Packets exchanged: Hello, DBD, LSR, LSU, LSAck
- LSDB synchronization
- DR and BDR election on broadcast multi-access links
- Use 32-bit router-id and the same process in determining the router-id
- Differences
- IPv4 vs IPv6 addresses
- IPv4 source address vs IPv6 link-local address
- 224.0.0.5 vs FF02::5 for all OSPF routers
- 224.0.0.6 vs FF02::6 for DR/BDR election
- Configured using network command vs ip ospf area command
- ip routing command on by default vs ipv6 unicast-routing must be configured
Labs:
PacketTracer Lab (Single Area): CCNA-3.10-Configure-verify-and-troubleshoot-single-area-OSPFv3-for-IPv6.pkt
PacketTracer Lab (Multiarea): CCNA-3.10-Configure-verify-and-troubleshoot-multiarea-OSPFv3-for-IPv6.pkt
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