OSPF: Difference between revisions
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;Type 2 - Network LSAs
Generated by the DR on a multi access segment
Represents the pseudonode
Provides similar information to an LSA type 1 for the multi access segment and subnet which it belongs
;Type 3 - Network Summary LSA / ABR Summary Route
Generated by ABRs
Contain the subnets & costs
Omit the topological data from all subnets in one area and sent to another area via the ABR
;Type 4 - ASBR summary LSA / ASBR Location
Injected by an ABR into the backbone to advertise the presence of an ASBR within an area
Represents ASBRs
Identical in structure to a type 3 LSA
;Type 5 - AS external LSA / ASBR Summary Route
Generated by ASBRs
;Type 7 - NSSA External LSA
Generated by the ASBR in an NSSA area
Used in stub areas in place of a type 5 LSA.
Converted into a type 5 LSA by the ABR when leaving the area
* LSA as per Areas<ref>www.ericsson.com/in</ref>:-
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