From: tan (tan@dia.janis.or.jp)
Date: Fri Feb 28 2003 - 03:44:45 GMT-3
The wording of use "filtering" to do this sounds noteworthy. Maybe use
aggregate no-summary at AS2, then filter on ingress at AS3? Network command
on AS2 hasn't been mentioned yet. If other very similar routes are involved
from AS1, an aggregate or network could unintentionally cover those as well,
may need suppress map in aggregate to overcome, or mask in network
statement, and that could be your "filter".
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Donny MATEO
> Sent: Friday, February 28, 2003 11:58 AM
> To: Joe Chang
> Cc: ccielab@groupstudy.com; nobody@groupstudy.com; Barker, Ray
> Subject: Re: BGP question
>
>
> Is it possible to use summary ?
> or inject the route to IGP and announce it as if it's your own ?
>
> Donny
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>
> "Joe Chang"
>
>
> <changjoe@earthli To:
> "Barker, Ray" <Ray.Barker@bellsouth.com>,
> <ccielab@groupstudy.com>
> nk.net> cc:
>
>
> Sent by: Subject: Re:
> BGP question
>
> nobody@groupstudy
>
>
> .com
>
>
>
>
>
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>
> 28-02-2003 03:35
>
>
> Please respond to
>
>
> "Joe Chang"
>
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> "set as-path" only allows AS prepends, no deletions. RFC 1771 does not
> mention anything about AS path deletions, but I suspect it's
> frowned upon.
> You might be stuck with the confederation solution.
>
> ----- Original Message -----
> From: "Barker, Ray" <Ray.Barker@bellsouth.com>
> To: <ccielab@groupstudy.com>
> Sent: Thursday, February 27, 2003 12:12 PM
> Subject: BGP question
>
>
> > AS1---AS2---AS3
> >
> > AS1 is announcing a network to AS2 and AS2 is forwarding
> > to AS3. Using filtering, AS3 should only see AS2 in the AS-Path
> > when showing sh ip bgp.
> >
> > Is this possible without using a confederation?
> >
> > Ray
> >
> >
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