Re: Mutual Redistribution between different EIGRP AS

Hi Nathan,

 Thank you for clarifying.

Regards
Anantha Subramanian Natarajan

On Wed, Aug 26, 2009 at 4:43 AM, Nathan Richie <nathanr_at_boice.net> wrote:

> Anantha,
>
> You should not have any routing loops when you only have 1 router doing
> redistribution between 2 protocols (and/or 1 router doing redistribution
> between 2 AS's). The router is intelligent enough to know what routes it
> injected into the other routing process. Also, physically it is not
> possible to have a loop in your topology that you described below.
>
> Hope this helps.
>
> Nathan
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Anantha Subramanian Natarajan
> Sent: Wednesday, August 26, 2009 1:12 AM
> To: Cisco certification
> Subject: Mutual Redistribution between different EIGRP AS
>
> Hi All,
>
> I have a question based on mutual redistribution between 2 EIGRP AS .I was
> reading,blind redistribution between 2 EIGRP process(AS) may cause routing
> loops.I am trying to understand a possible scenario that may happen.
>
> I am assuming the scenario to have only one mutual redistribution point,as
> below
>
> R1 --*EIGRP AS 10*---R2 -*EIGRP AS 20*---R3 ---*RIPV2*---R4
>
> R2 is doing mutual redistribution between EIGRP AS 10 and EIGRP AS 20.R3 is
> redistributing RIPV2 into EIGRP AS 20.Will there be any routing loops in
> the
> above topology.
>
> I am assuming EIGRP 10 routes going to AS 20 will not return back and
> similarly the other way.Also assuming for RIPV2 routes redistributed into
> eigrp 10 will not return back to AS 20.If that is not right,kindly correct
> me.
>
> So trying to understand a looping scenario which would be possible when we
> do mutual redistribution between 2 EIGRP AS process on the same router.
>
> Kindly help me to understand .
>
> Thanks for the assistance.
>
> Regards
> Anantha Subramanian Natarajan
>
>
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Received on Wed Aug 26 2009 - 07:10:59 ART