[20452] in North American Network Operators' Group

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Re: IGPs in use

daemon@ATHENA.MIT.EDU (Tony Li)
Tue Oct 13 18:27:17 1998

To: amb@gxn.net (Alex Bligh)
cc: nanog@merit.edu
From: Tony Li <tli@juniper.net>
Date: 13 Oct 1998 15:12:39 -0700
In-Reply-To: amb@gxn.net's message of 13 Oct 98 19:09:47 GMT

amb@gxn.net (Alex Bligh) writes:

> > 	1) If you put your backbone connected interfaces (loopbacks
> > serials, etc.. in your IGP [isis, ospf, whatever])
> > 	2) Have a full iBGP mesh doing next-hop-self of the loopback
> > interface
> > 	3) Redistribute statics and connected into your iBGP routing table
> > (with route-map, or appropriate filters as necessary that vary by vendor)
> 
> No argument with the principles here but why do you need to redistribute
> connected interfaces into your IGP *and* into iBGP? Overkill, surely?


In fact, you not only don't need to do so, you want to avoid doing so.
This simply pollutes BGP and you'll need to remove it later at the domain
border where you're aggregating anyhow.


Tony

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