Re: ASBR Selection

What version was this introduced in? I am also having trouble finding
anything on this gem.

On Tue, May 29, 2012 at 10:58 AM, Tom Kacprzynski <tom.kac_at_gmail.com> wrote:

> Can you provide us with any links to this command? I'm not able to find
> anything regarding it on IOS.
>
> Thank you
>
>
> Tom
>
>
> On Tue, May 29, 2012 at 12:45 PM, Cisco Router <angryrouter_at_gmail.com
> >wrote:
>
> > Tony,
> > It's not a selection but an election. Within each area an RDR
> > (Redistribution
> > Designated Router) is elected. The RDR is responsible for external route
> > redistribution within an area. Stub and totally stub areas do not have
> an
> > RDR since no redistribution occurs in these types of areas. When there
> is
> > only a single point of redistribution within an area there isn't any
> > election but once you have multiple points of redistribution the RDR is
> > elected.
> >
> > Under the OSPF process configure the preferred router to become the RDR
> as
> > such:
> >
> > router ospf 1
> > area X redistribution priority 100
> >
> > If there is a tie with the redistribution priority between routers, the
> > router with the longest host-id (aka hostname) wins. To disable this
> > behavior use the command below:
> >
> > router ospf 1
> > no redistribute compare host-id
> >
> > If you can't find these commands it could be because they are only in the
> > newer IOS versions.
> >
> > As a side note in production environments watch out for Juniper routers.
> > They will make a lot of pre-redistribution election promises but never
> > follow through once elected. Once again they over promise but under
> > deliver.
> >
> > Hope this helps!
> >
> > On May 28, 2012, at 1:54, Vincent Tay <vtay.75_at_gmail.com> wrote:
> >
> > Hi all,
> > If there are two ASBRs redistributing routes, will there be any
> selection?
> > From what i have try, the router that i clear the ospf process will end
> up
> > advertising the type 5 routes. I am quite confuse with it.
> > EIGRP
> > ____________________________________
> > | |
> > | |
> > | |
> > R3(ASBR)------------------------------R2(ASBR) !
> > Redistributing EIGRP into OSPF
> > | |
> > | |
> > | |
> > OSPF Area Routers
> > ___________________________________
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Received on Tue May 29 2012 - 16:29:33 ART