I just need to be clear about something on OSPFv3 processes. I hear that different ospf processes in the same router maitains different topology databases and that by default, the processes do not communicate or exchange routing updates. I also hear that by default, OSPFv3 processes use the same multicast address and the same UDP port number; meaning that all the processes in the same multicast group and using the same UDP port number can exchange route updates. How do the above two default behaviors match up?
1. The multiple OSPFv3 processes in the same router populate the same routing table right? Which of the processes will perform the best path selection procedure? If multiple OSPFv3 processes are offering the same route, then what will be the basis of selecting the best route?
2. Which of the processes will exchange the resulting LSAs with other OSPF neighbors?