OSPF LSA types

1. Router LSA
2. Network LSA
3. Network summary LSA
4. ASBR summary LSA
5. AS external LSA
6. Group membership LSA
7. NSSA external LSA
8. External attributes LSA
9. Opaque LSA (link-local scope)
10. Opaque LSA (area-local scope)
11. Opaque LSA (AS-wide scope)