RE: OSPF Path selection question

Thanks Bryan for your reply;
  yes of course, I have increased the cost between R3 and R5 to 1000, And
lower the cost of R5-R4 and R4-R2 to 1, And still taking the R3 path, I feel
it's prefer Area 1 over Area 0 for a reason, Note that the connection between
R5 and R4 is area 0, I also shut down the link between R5-R3, I found it's
taking the path via R4 with the 2 cost as expected, I think the problem is why
it's prefering Area 1 over area 0, thanks

> Date: Sat, 20 Mar 2010 16:39:01 -0600
> Subject: Re: OSPF Path selection question
> From: bbartik_at_ipexpert.com
> To: mohamed_kamar_at_hotmail.com
> CC: ccielab_at_groupstudy.com
>
> Mohamed,
>
> E1 routes increment throughout the network. So from your topology, you must
> add the cost of the links between R5 and R4 and R2 as well. What's the
total
> metric of each link? Have you looked the entries of the OSPF database? What
> other troubleshooting have you done?
>
> On Sat, Mar 20, 2010 at 4:25 PM, mohamed kamar
<mohamed_kamar_at_hotmail.com>wrote:
>
> > Hi Friends;
> >
> > Any one has idea what's going on in the below?
> >
> >
> > R1
> >
> > | (BGP)
> >
> > |------------------------|
> >
> > R3---------------------R2
> >
> > | OSPF Area1 |
> >
> > R5-------------------- R4
> >
> > OSPF Area 0
> >
> >
> >
> >
> > -R1 is running BGP with R2 and R3
> >
> > -R2 is primary router So it's redistribute BGP into OSPF metric 100 type
E1
> >
> > -R3 is Secondry router So it's redistribute BGP into OSPF metric 200 type
> > E1
> >
> >
> > The problem is R5 always using R3 path to reach R1 however the metric of
> > this
> > path is higher than the one coming from R4, Any Idea, Thanks
> >
> >
> > Best Regards;
> >
> > M.Kamar
> >
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> --
> Bryan Bartik
> CCIE #23707 (R&S, SP), CCNP
> Sr. Support Engineer - IPexpert, Inc.
> URL: http://www.IPexpert.com
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Received on Sat Mar 20 2010 - 22:56:49 ART