[routing-wg]More specific prefix announce

 

> -----Message d'origine-----
> De : routing-wg-admin at ripe.net 
> [mailto:routing-wg-admin at ripe.net] De la part de Volodymyr Yakovenko
> Envoyé : vendredi 2 septembre 2005 00:27
> À : dendy at ulm.udsu.ru
> Cc : routing-wg at ripe.net
> Objet : Re: [routing-wg]More specific prefix announce
> 
> On Fri, Sep 02, 2005 at 12:01:16AM +0500, dendy at ulm.udsu.ru wrote:
> >Hello.
> >Unfortunately, I'm not so experienced in the question to anwer that. 
> >Therefore I ask for help and will be thankful for any clarification.
> >
> >We have a /20 ASSIGNED PI address block and an AS. Is it allowed by 
> >RIPE policy to intentionally announce more specific prefix 
> than one we 
> >have from our AS to upstream ASes?
> >For example, announce our X.X.0.0/20 to upstream A and announce both 
> >X.X.0.0/20 and
> >X.X.6.0/23 to B?
> 
> It is not disallowed. What's more - it is common practice to 
> perform incoming capacity engineering in this way. 

But, IMHO, preferably in a multiple interconnection to a single AS scenario
only (having that AS export the shortest prefix only). 

Mh

> 
> >-- 
> >Denis Tatarskikh [UdSU/MF] [UdSU/IC]        mailto:dendy at udsu.ru
> >
> 
> --
> Regards,
> Volodymyr.
> 
>