OSPF Operations
Can be divided into 3 categories:
- Neighbor and adjacency initialisation
- LSA Flooding
- SPF Tree calculation
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The basic step-by-step operations of OSPF:
- OSPF routers send Hello packets out all interfaces taking part in the OSPF process. If 2 peers agree on the parameters contained in the Hello packet, neighbors are formed.
- Some neighbors form adjacencies, which depends on the type of network the Hello packet traverses and the types of routers exchanging the Hello packets.