OSPF: Difference between revisions

232 bytes added ,  5 years ago
Line 228:
Block Type 5 LSAs.
A default route is substituted for external routes.
Config:
# router ospf 1
# area 2 stub
 
;Totally stubby areas
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Block LSAs Type 3,4,5.
The type 3 LSA describes a default route, substituted for all external and inter-area routes.
Config:
# router ospf 1
# area 2 stub no-summary
 
;Not-soSo-stubbyStubby areas
Implement stub or totally stubby functionality yet contain an ASBR.
Type 7 LSAs generated by the ASBR are converted to type 5 by ABRs when entering Backbone Area to be flooded to the rest of the OSPF domain.
Config:
# router ospf 1
# area 2 nssa
 
;Not-So-Stubby Totally-Stubby areas
# router ospf 1
# area 2 nssa no-summary
 
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