Did you get my response to your original post?

The route on r2 is a E2 route so it is not intra-area,
but a externally learned route so different rules come
into play. With external routes, there is a forwarding
address (next-hop value) of the lowest cost route to
that destination. Look at the RFC again - pages 23-25
or so, the section dealing with external routes. They
explain it there well and have an example. 

--- Jaeheon Yoo  wrote:
> Hi, all
> According to rfc2328. p.175, when we have multiple
> intra-area paths to
> ASBR,a intra-area path using non-backbone area
> should be chosen over
> one using backbone area.
> But I always have opposite result. doesn't Cisco's
> implementation yet
> conform to rfc2328 in this respect?
> 
> Here's from my cisco 2501 router.
> 
> r2#sh ip ospf data
>
-------------------------------------------------omitted
>                Type-5 AS External Link States
> 
> Link ID         ADV Router      Age         Seq#    
>   Checksum Tag
> 131.108.0.0     192.168.40.3    324        
> 0x80000003 0xE930   0
> r2#
> r2#sh ip ospf border
> 
> OSPF Process 10 internal Routing Table
> 
> Codes: i - Intra-area route, I - Inter-area route
> 
> i 192.168.40.3 [74] via 172.16.2.2, Serial0,
> ABR/ASBR, Area 0, SPF 7
> i 192.168.40.3 [1562] via 172.16.30.33, Serial1,
> ABR/ASBR, Area 6, SPF
> 5
> 
> r2#sh ip route
> -----------------omitted
> O E2 131.108.0.0/16 [110/20] via 172.16.2.2,
> 00:03:38, Serial0
> r2#
> 
> Could somebody explain this to me?
> Thanks in advance.



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