From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Nov 05 2004 - 12:24:37 GMT-3
Zubin,
This is the correct behavior as per the standard. The network
itself is not advertised, only the endpoints.
<RFC 2328>
12.4.1.4. Describing Point-to-MultiPoint interfaces
For operational Point-to-MultiPoint interfaces, one or
more link descriptions are added to the router-LSA as
follows:
o A single Type 3 link (stub network) is added with
Link ID set to the router's own IP interface
address, Link Data set to the mask 0xffffffff
(indicating a host route), and cost set to 0.
</RFC 2328>
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Zubin Chagpar
> Sent: Thursday, November 04, 2004 6:21 PM
> To: ccielab@groupstudy.com
> Subject: ip ospf point-to-multipoint
>
> I'm trying out different scenarios with frame-relay and OSPF. I have
> three routers, all physical interfaces with frame-relay map
> statements.
>
> When I use the default OSPF network type, non-broadcast - everything
looks
> fine.
>
> When I convert it to point-to-multipoint, I get ospf routes for my
> peers on all three routers, /32s.
>
> This might be acceptable behavior and if it is, I missed something in
> my OSPF studying. Clarification would be appreciated. Thanks!
>
> R1 192.168.123.1
> show ip route
> O 192.168.123.2/32 [110/64]
> O 192.168.123.3/32 [110/64]
>
> R2 192.168.123.2
> show ip route
> O 192.168.123.1/32 [110/64]
> O 192.168.123.3/32 [110/64]
>
> R3 192.168.123.3
> show ip route
> O 192.168.123.1/32 [110/64]
> O 192.168.123.2/32 [110/64]
>
>
This archive was generated by hypermail 2.1.4 : Thu Dec 02 2004 - 06:57:38 GMT-3