From: Zouta oxpf (zouta.oxpf@gmail.com)
Date: Mon Sep 26 2005 - 15:29:48 GMT-3
That is correct, John; If BB1 stop sending routes to R3, because it does not
know how, R3 will loose all BB1 routes. AS2 will stop being transit between
AS3 and AS100.
Z
On 9/26/05, John Matus <John.Matus@tokiom.com> wrote:
>
> ok, to clarify again...................
> i was going under the assumption that you do not want R3 to transit R2 to
> get the the prefixes on bb1. is that correct? that should be correct
> since there would be no reason for bb1 to send traffic to R3 since R3 is
> not advertising any routes... yeah?
>
>
> Regards,
>
> John D. Matus
> Technical Support / PAS
> Fujitsu Consulting
> 626-568-7716
> John.Matus@tokiom.com
>
>
>
> Zouta oxpf
> <zouta.oxpf@gmail
> .com> To
> Sent by: Jens Petter Eikeland
> nobody@groupstudy <jenseike@start.no>
> .com cc
> ccielab@groupstudy.com
> Subject
> 09/26/2005 11:04 Re: bgp filtering
> AM
>
>
> Please respond to
> Zouta oxpf
> <zouta.oxpf@gmail
> .com>
>
>
>
>
>
>
> Hi Jens,
> I suggest advertising AS3 routes (R3) to AS2 (R2) with a community value
> of
> no-export. As a result AS100 will have no knowledge of AS3 routes, and it
> will not attempt to reach those routes via AS2.
> Hope this helps
> Z.
>
> On 9/26/05, Jens Petter Eikeland <jenseike@start.no> wrote:
> >
> > Hi group,
> >
> >
> >
> > I have this setup :
> >
> >
> >
> > R3------R1-------R2-----BB1
> >
> >
> >
> >
> >
> > R3= AS3
> >
> > R1 and R2=AS 2
> >
> > BB1=AS100
> >
> >
> >
> > R3 is EBGP peering with R1
> >
> > R1 is IBGP peering with R2
> >
> > R2 is EBGP peering with BB1
> >
> >
> >
> > R3 is receiving a bunch of routes from AS100.
> >
> > My task is to filter on R3 so that AS2 becom a non-transit AS.. All
> other
> > routes should be accepted.
> >
> > The filter needs to be on R3
> >
> >
> >
> > How to achive this task. Any suggestion.
> >
> >
> >
> > Thanks
> >
> >
> >
> >
> >
> > JP
> >
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