Re: router ids

From: Asim Zafar (asim.mz@gmail.com)
Date: Fri Nov 16 2007 - 01:34:58 ART


What if one router have more then one routing protocol, should use same
loopback interface IP as id for all routing protocols ?

On 11/14/07, Tarun Pahuja <pahujat@gmail.com> wrote:
>
> Asim,
> Router-id plays a very important role in routing protocols.
> Please read the lab carefully to see if they have asked you to use a
> specific ipaddress or interface as the router-id, do what is required. If
> nothing is mentioned, it is highly recommended that you choose an interface
> ip address preferably a loopback to be the router-id. If you do not do it,
> you are bound to get into trouble.
>
> Ospf uses router-id for Virtual-links, DR elections,etc
> BGP can also uses router-id for best-path selection process.
>
> http://www.cisco.com/warp/public/459/25.shtml
> http://www.cisco.com/warp/public/104/2.html
>
> If you do not set the RID manually, there are chances that you might add
> additional loopbacks, which might cause router-id to change after a reboot
> or clearing of the routing protocol process.
>
> HTH,
> Tarun
>
>
> On Nov 14, 2007 7:23 AM, Asim Zafar <asim.mz@gmail.com> wrote:
>
> > Dear experts,
> >
> > Please guide me if nothing mentioned in the lab to configure router ids
> > for
> > any routing protocol and we configure it for the sake of our easiness;
> > will
> > that effect the lab score.
> >
> >
> >
> > --
> > Thanks & Regards,
> >
> > Asim Zafar
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
>
>

-- 
Thanks & Regards,

Asim Zafar



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