From: Ryan (ryan95842@gmail.com)
Date: Wed Apr 16 2008 - 03:13:15 ART
The rule is all iBGP peers must be fully meshed.
You can get around this requirement with Route-Reflectors and Confederations.
However, since they are discontinuous, neither of those solutions may
be the best and you might want to look at disabling the loop
prevention mechanism and use the 'neighbor allowas-in' command
instead.
HTH
-Ryan
On Tue, Apr 15, 2008 at 8:04 PM, John <jgarrison1@austin.rr.com> wrote:
> I probably wasn't clear I have 3 routers with full mesh in AS 100 one of the
> routers is connected to a router in AS 200. The Router in AS is connected
> to a switch thats in the "discontiguious" AS 100, which is also full mesh
> between 2 switches. Do I need full mesh between the 2 "discontiguious" AS
> 100's?
>
> Off topic why did I have to reload to get no-export community to work, is
> that normal?
> ----- Original Message ----- From: "Joseph Brunner"
> <joe@affirmedsystems.com>
> To: "'John'" <jgarrison1@austin.rr.com>; <ccielab@groupstudy.com>
> Sent: Tuesday, April 15, 2008 8:34 PM
> Subject: RE: BGP full mesh
>
>
>
>
>
> > You don't want to enable sync if every router is running bgp - period. No
> > need.
> >
> > You can just "peer over" the middle as, and choose points to run ebgp with
> > that middle as. IBGP neighbors do not need to be directly connected.
> >
> > I'm sure others will offer you some confederation solutions to this...
> > Others will proffer the local-as menagerie of commands.
> >
> > -Joe
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> John
> > Sent: Tuesday, April 15, 2008 10:18 PM
> > To: ccielab@groupstudy.com
> > Subject: BGP full mesh
> >
> > If I have 2 groups of routers in the same as but seperated by a transit AS
> > is
> > full mesh required between the all the routers even though their
> seperated.
> > Assume full mesh in between the routers in each group.
> >
> > Next, do you want to enable synchronization when you have a full mesh in
> an
> > AS?
> >
> >
> > Pass the CCIE in six weeks, Guaranteed!
> > http://www.certscience.com/CCIE
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
>
>
> Pass the CCIE in six weeks, Guaranteed!
> http://www.certscience.com/CCIE
> _______________________________________________________________________
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