Re: Non-ISP companies multi-homing?

["J.D. Falk" <jdfalk () priori net>]

On Jul 24, Gordon Mercer <gmercer () dn net> wrote: 

> I think I see where the miscommunication lies. We were  
> discussing ISP's running IBGP sessions with multi-homed  
> customers. giving you the ability to announce routes to  
> another provider tagged with my AS is what makes me  
> nervous.

        Hmm.  I could /maybe/ see allowing that as a seperate
        IBGP community, but even then it's dangerous.

        It's easy to get an ASN (even though it takes a while;
        I think the 'NIC still does those manually), so there's
        really no reason not to require multi-homed customers
        to do so if they want to talk BGP with you.

        But, seperate real ASN or seperate community, you'll
        still want to filter incoming announcements from the
        customer -- just as they'd probably want to filter
        announcements from you.

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J.D. Falk                         voice: +1-415-482-2840        
Supervisor, Network Operations      fax: +1-415-482-2844
PRIORI NETWORKS, INC.              http://www.priori.net
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