Explain the OSPF LSA types and their purposes. How do different LSAs contribute to the OSPF database?

Question

Accepted Answer

OSPF LSA types include Router LSA, Network LSA, Summary LSA, and ASBR Summary LSA, each serving a specific purpose in building the OSPF database.

Router LSA: Generated by each router to describe its directly connected links.
Network LSA: Generated by DR to describe the network and its attached routers.
Summary LSA: Generated by ABR to advertise routes between areas.
ASBR Summary LSA: Generated by ASBR to advertise external routes into OSPF domain.
Different LSAs contribute to OSPF database by exchanging routing information and building a topology map.
LSAs are flooded throughout the OSPF network to maintain consistent and up-to-date routing information.

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