From: pita40 (pita40@hotmail.com)
Date: Mon Dec 15 2003 - 21:56:20 GMT-3
Hello
I thaught that this can cause a loop and as such you are adviced to use bgp
cluster-id between them. ie use same id # to avoid loop possibility
especially if they are reflecting same multiple client.
Please help clarify
----- Original Message -----
From: "Brian McGahan" <bmcgahan@internetworkexpert.com>
To: "'Richard Davidson'" <rich@myhomemail.net>; "'groupstudy'"
<ccielab@groupstudy.com>
Sent: Monday, December 15, 2003 7:25 PM
Subject: RE: point a route-reflector-client to a route-reflector-client
> Richard,
>
> This is a valid configuration, however it is typically not required.
> A route reflector conforms to the following three rules:
>
> 1. if a route is learned from an EBGP peer it is candidate to be
advertised
> to any neighbor
> 2. if a route is learned from a client peer it is candidate to be
advertised
> to all client peers, non-client peers, and EBGP peers.
> 3. if a route is learned from a non-client peer it is candidate to be
> advertised to all client peers and EBGP peers.
>
> (Note the term 'non-client' refers to an iBGP peer not configured with the
> route-reflector-client statement)
>
> Therefore assuming that the route reflector is reflecting for its
> iBGP peers, the peering between redundant route-reflectors will behave the
> same whether they are clients or non-clients of each other.
>
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 708-362-1418 (Outside the US and Canada)
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Richard Davidson
> > Sent: Sunday, December 14, 2003 5:10 PM
> > To: groupstudy
> > Subject: point a route-reflector-client to a route-reflector-client
> >
> > Is there amy known problems pointing a
> > route-reflector-client to a route-reflector-client?
> >
> > R1-----R2
> > | |
> > | |
> > R3 R4
> > **
> > R1
> > neighbor R2 route-reflector-client
> > !
> > R2
> > neighbor R1 route-reflector-client
> >
> >
> > =====
> > Richard Davidson
> > Yahoo IM: r1davidson
> > e-mail rich@myhomemail.net
> >
> > _______________________________________________________________________
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