Re: Route Reflection

From: Hoogen <hoogen82_at_gmail.com>
Date: Wed, 2 Dec 2009 12:23:16 -0800

This wasn't for real design :) This was for my studies.. the "what if"
questions that keep popping up in my head.. Cause I would assume the exam
would probably want us to know most options..

Mark when you say bad design choice.. do you mean disabling the route
reflection or having no peering between R3 and R4... ?? I would assume that
having no peering between R3 and R4 is not a bad choice since there is no
BGP routes installed on them that needs to be passed on..Or is this a
mandatory desing requirement that when reflection is disabled we need to
have full mesh peering.

-Hoogen

On Wed, Dec 2, 2009 at 12:08 PM, Marko Milivojevic <markom_at_ipexpert.com>wrote:

> On Wed, Dec 2, 2009 at 19:59, Hoogen <hoogen82_at_gmail.com> wrote:
> > Well.. My topology was to deploy a RR... and as Jack pointed out by
> enabling
> > the second command its similar to having no RR.. and as Mark said would
> > reflect to non-clients... But the point I am trying to check is whether
> we
> > need reflection between R3 and R4... The pdf doesn't seem to say what if
> > there are no routes on either of these two routers and actually do not
> need
> > a peering or pass updates.. It only says if client-to-client reflection
> is
> > disabled we need to have a full mesh?
> > So no matter what if the reflection is disabled and even if routes aren't
> > being sent across do we need a full mesh.. Or can we skip the part of
> having
> > to do peering between R3-R4.
>
>
> The purpose of peering between routers is to exchange routes. If there
> are no routes to be exchanged, you can skip establishing peering.
>
> It's a bad design choice, but if you are studying for CCIE, then bad
> design is not an issue (common sense sometimes does not apply there -
> just understanding how things work ;-) ).
>
> --
> Marko Milivojevic - CCIE #18427
> Senior Technical Instructor - IPexpert
>
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Received on Wed Dec 02 2009 - 12:23:16 ART

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