I am interested to know what is the point of having Type 2 LSA's.
My understanding is that a Type 2 LSA will provide details of attached routers to a subnet - usually generated by the DR.
However every router will generate a Router Type 1 LSA, covering the links, neighbor ID or DR ID, Interface address. Surely a whole picture of a network within an area can be determined from Type 1's without the need for Type 2's.
I am obviously missing something, but I cannot tell what