CP Route v1 Vocabulary Ch07

Question 1

No-so-stubby area

Answer 1

a type of OSPF area, which acts like other stub areas in that ABRs inject default routes into the area, but unlike other stub areas in that external routes can be injected into the area

Question 2

Stub area

Answer 2

an OSPF area into which external (Type 5) LSAs are not introduced by its ABR; instead, the ABRs originate an inject default routes into the area

Question 3

Totally stubby area

Answer 3

a type of OSPF stub area for which neither external (Type 5) LSAs are introduced, nor Type 3 summary LSAs; instead, the ABRs originate and inject default routes into the area; external routes cannot be injected into this type of area

Question 4

Type 3 LSA Filtering

Answer 4

the process of causing an ABR to not create and flood a Type 3 LSA into another area

Question 5

Type 5 External LSA

Answer 5

an LSA type that describes an external subnet as advertised into OSPF by an ASBR; also called an external LSA

Question 6

Type 7 AS External LSA

Answer 6

an LSA type that describes an external subnet as injected into an NSSA area