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Home > Archive > CCNP > December 2000 > ospf->totally stuby->default route->lsa type 3?
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ospf->totally stuby->default route->lsa type 3?
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| if i'm not wrong, in a stub, default route generated by the abr is lsa type 3.
but lsas type 3 are not allowed in "stub no-summary"...
have you read something saying that such route is a SPECIAL lsa type 3?
unless, my assumptions are wrong...
thanks for your comments
frans
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| The OSPF specifications define three types of areas: normal (type-5 capable) area, stub area and not-so-stubby-area. The "totally stubby" area is a Cisco extension, defined as a stub area in which only the default route is flooded. You won't find a "area totally-stubby" in the command reference; you'll find only "area stub" and "area nssa". The only way to make a stub area "totally stubby" is to include the "no-summary" option. Therefore:
- "area x stub" configures a stub area in which summaries, including a summary for 0.0.0.0, are flooded
- "area x stub no-summary" configures a totally stubby area, in which only the summary for 0.0.0.0 is flooded.
Hope this answers your question.
Cheers!
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