OSPF STUB Areas.
STUB AREA - External LSA (Type 5 LSA) stopped and dynamically converted to default route.
OE1/OE2 - converted to single default route O*IA
O*IA route
External route information store in ABR but ABR send only the default route.
Rules:
one ABR or More
one ABR or More
Not AREA 0
No virtual link go through this area.
Configuration
#Router ospf 1
#Area 100 stub
TOTALLY STUB AREA - NOT ONLY External LSA 5 , Summary LSA (Type 5 LSA IT ALSO INCLUDE
TYPE 3 LSA) stopped and dynamically converted to default route.
OE1/OE2 and OIA- converted to single default route O*IA
OE1/OE2 and OIA- converted to single default route O*IA
O*1A route
Configuration
#Router ospf 1
#Area 100 stub NO-SUMMARY
NO SO STUBBY AREA (NSSA)
It carring the external route information LSA 7 into no so stubby area then ABR those type
7 LSA converted into TYPE 5 (External LSA) & advertise to Different area.
Configuration
#Router ospf 1
#Area 100 NSSA
TOTALLY NO SO STUBBY AREA
Configuration
#Router ospf 1
#Area 100 NSSA NO-SUMMARY
No comments:
Post a Comment