Non-ISP companies multi-homing?

Thu Jul 24 23:49:29 UTC 1997

On Jul 24, Gordon Mercer <gmercer at 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
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