Re: AS-override with AS Path Prepend

That depends on your topology, and allowas-in is kind of more dangerous,
IMHO. Use at your own risk :)

Demo case is customer wanting branch traffic to traverse hub location.

-Carlos

Raghava Thumalakoti @ 30/04/2010 9:05 -0300 dixit:
> Hi All
>
> i had a queryon asallow in and asoveride options
> we can use any one of the following write when same as is connected on
> PE routers.
>
>
> asallowin on CE router
> or
> asoveride on PE router...
>
> Am i right, please let me know
>
> Raghava
>
>
> On Fri, Apr 30, 2010 at 5:26 PM, Rick Mur <rmur_at_ipexpert.com
> <mailto:rmur_at_ipexpert.com>> wrote:
>
> Like Carlos said ALL AS numbers are overwritten with the ISP AS. Of
> course only when they are together, otherwise you would have a loop
> and BGP always drops these updates.
>
>
> --
> Regards,
>
> Rick Mur
> CCIE2 #21946 (R&S / Service Provider)
> Sr. Support Engineer IPexpert, Inc.
> URL: http://www.IPexpert.com
>
> On 26 apr 2010, at 23:47, Carlos G Mendioroz wrote:
>
> > All of them are changed, as long as they are together (i.e. no
> > intervening ASs).
> >
> > -Carlos
> >
> > Ahmed Mohamed @ 26/04/2010 18:36 -0300 dixit:
> >>> Hello Everybody,
> >>>
> >>> if AS-override is used on a PE, where the CE is configured with
> as-prepend,
> >>> how would this integrate?
> >>>
> >>> would all prepended AS's changed into the ISP's AS ? , or prepend os
> >>> bypassed and only one AS is changed?
> >>>
> >>> thx
> >>> Ahmed
> >>
> >>
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> > --
> > Carlos G Mendioroz <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>>
> LW7 EQI Argentina
> >
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>
>
>
>
>
> --
> Regards,
>
> Raghava Rao T.V
> Mumbai
>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net