Explain LSA Types in detail

Question

Accepted Answer

LSA Types are used in OSPF to describe the type of information contained in the LSA.

Type 1: Router LSA - contains information about the router and its directly connected networks
Type 2: Network LSA - describes the networks connected to a multi-access network
Type 3: Summary LSA - contains information about networks outside of the area
Type 4: ASBR Summary LSA - describes the ASBR router to the rest of the OSPF domain
Type 5: External LSA - contains information about external networks
Type 6: Multicast OSPF LSA - used for multicast traffic
Type 7: NSSA External LSA - used in NSSA areas to describe external networks
Type 8: Link LSA - used for OSPFv3 to describe link-local information
Type 9: Intra-Area Prefix LSA - used for OSPFv3 to describe prefixes within an area

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