From: KS Anpu (ksanpu@gmail.com)
Date: Mon Apr 28 2008 - 00:42:29 ART
I am sending this mail again as i didnot get any reply for this. I think you
all might not receive the earlier mail .
Hi All ,
> I am expecting help to clear one doubt in ospf nssa , i did a
> small lab setup to clear ospf nssa , and find the difference between the
> 1, *area 2 nssa default-information-originate*
> 2, *area 2 nssa no-summary
> AND
> *3, *area 2 nssa no-summary default-information-originate
>
> area 1 area0
> area0 area 2(nssa)
>
> R1---------------------R2------------------------R3-------------------------R4--------------------------R5
>
> I did the following configuration on R4 and observe the result in R5**
> *
> 1 , when i am using the *area x nssa default-information-originate * --->
> default route injected under the Type -7 LSA in the ospf database and the
> routing table has a new *O*N2*
> route as *O*N2 0.0.0.0/0 [110/1] via 131.1.45.4, 00:10:27,
> FastEthernet0/1
> *
> 2, when i am using the *area x nssa no-summary *---> default route is
> injected under the Summary Net Link LSA in the ospf database and the routing
> table has a new *O*IA* route as *O*IA 0.0.0.0/0 [110/2] via 131.1.45.4,
> 00:00:29, FastEthernet0/1*
>
> BUT
>
> 3 , when i am using *area x nssa no-summary default-information-originate
> *---> default route is injected under both Type-7 and Summary Net Link LSA
> in the ospf database but in the rouing table it is select only *O*IA
> 0.0.0.0/0 [110/2] via 131.1.45.4, 00:00:12, FastEthernet0/1
>
> So i want know the difference in between the following commands ?
>
> *2, *area 2 nssa no-summary
> AND
> *3, *area 2 nssa no-summary default-information-originate*
*
>
>
> *Regards,
> Anbu.*
>
> **
>
>
> *
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