From: Rick Mur (rickmur@me.com)
Date: Tue Aug 26 2008 - 14:00:39 ART
If your router with router-id 4.4.4.4 goes down, the virtual-link goes
down. So if you are required to keep the ospf working if that router
goes down, you should have another router that's an ABR from area 1 to
area 0.
The DR/BDR election has totally no effect on virtual-links, you can
configure a virtual-link on any ABR that's touching area 0.
Rick
On 26 aug 2008, at 09:45, Zealist Hamamd wrote:
> Hie Experts,
>
> I came across a question that If I have a multi area ospf network,
>
> AREA 0 --- AREA 1 --- AREA 3
>
> If I configure a virtual link from area 3 to area 0 using AREA 1 as
> transit. area 1 virtual-link 4.4.4.4
>
> 1- now, what happens if the router 4.4.4.4 in bw area 0 and 100
> goes down
> ?? do I have to reconfigure the virtual link ?
> 2- What happens if the DR router in area 0 goes down, and an
> election
> takes place, so the BDR on area 0 becomes the DR.do I have to
> reconfigure
> the
> virtual link??
>
>
> My understanding in this regard is
>
> Ans 1- If router 4.4.4.4 down the link will down and untill u have
> some
> backup link configure , area 3 wil be dosconnected(Kindly shed some
> views
> on how to configure backup Virtual links).
>
> Ans 2- DR / BDR have no effect on Virtual links, ABR wil calc the
> current DR
> and fwd LSAs to that.
>
> Kindly correct me if i m wrong somewhere.
> Regards
> Hammad
> zealist@gmail.com
>
>
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