Your area border router (ABR) receives type 1.2 and 5 link-state advertisements (LSAs) from a non-backbone area.
What would the ABR do with the information learned from the non-backbone area?
A.
The ABR will generate type 2 and 3 LSAs and flood type 5 LSAs to the backbone area
B.
The ABR will generate only type 3 LSAs and flood only type 5 LSAs to the backbone area
C.
The ABR will generate type 3 and 4 LSAs. And flood type 5 LSAs to the backbone area
D.
The ABR will generate only type 4 LSAs and flood only type 5 LSAs to the backbone area
The correct is B, ABR will generate only type 3 LSA and flood only type 5 LSAs to the backbone area, I think the ASBR will generate type 4 LSA
No, Type 4 LSA is generated by ABR. ASBR still generates LSA 1 and has a bit to indicate it’s ASBR. After receiving this LSA, ABR will generate LSA 4 to announce to their neighbor that it has a path to ASRB. So C is correct.
C is correct
No, B is correct. Type 4 LSA is generated by ABR to NON-backbone area. http://packetlife.net/blog/2008/apr/21/where-are-type-4-lsas-generated/
hei hei hei nfs5;-).. you’re actually pointing to C as correct answer.
no, definitely is C, ABR generate LSA type 3 and 4 and LSA type 5 are flooded to all areas (except stub in case of 4 and 5).