RE: OSPF Virtual Links

Quick thought: If they are area 5 routes, then shouldn't the summary
command be "area 5 range..." I believe the command references the source
area.

HTH,

-Bob Sinclair

> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> cgrammer_at_essilorusa.com
> Sent: Tuesday, June 22, 2010 6:52 PM
> To: ccielab_at_groupstudy.com
> Subject: OSPF Virtual Links
>
> I am having a difficult time finding information regarding a detailed
> explanation of OSPF virtual links with regards to route summarization
> on the
> remote end of the virtual link router.
>
> I am working on a practice lab that:
>
> (area5) R1 --(area0)--- R2 ----(area1) ---R3 ---(area3) --- R4
>
> The requirement is to connect R2 to R3 with a virtual link to allow
> area5
> routes to be propagated to R4.
> 1.1.0.0/24
> 1.1.1.0/24
> 1.1.2.0/24
> 1.1.3.0/24
>
> The routes show up on R4 as expected, but the next requirement is to
> summarize
> the routes at R3 so that it shows up as 1.1.0.0/22 on R4.
>
> Since R3 is now a member of Area0, I would think i can use
> area 0 range 1.1.0.0 255.255.252.0
>
> But,this doesn't work.
> It seems that there are some peculiar characteristics regarding virtual
> links
> and area 0, but there isn't much documentation outside of the
> rudimentary
> explanation and troubleshooting commands.
>
> Thanks in advance for everyones help,
>
>
> Chris
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.829 / Virus Database: 271.1.1/2955 - Release Date:
> 06/22/10 14:36:00

Blogs and organic groups at http://www.ccie.net
Received on Tue Jun 22 2010 - 19:05:09 ART