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BGP Route Reflector IXPs need a AS number. I'll send you a URL with a whitepaper. The BGP Route Reflector IXPs have proved to offer a low entry cost for ISPs (for those places that do not have the deep pockets to get big routers). It also does not remove the option of scaling to point-to-point peering (pointed out below does not need an AS number) or route server (which also does not need a AS number). > -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of > Randy Bush > Sent: Saturday, January 06, 2001 6:36 AM > To: [email protected] > Cc: [email protected] > Subject: Re: > > > > > Is a separate AS Number required for an Internet Xchange point network. > > almost all ixen are at layer two. hence they have no ip addresses, let > alone layer three routing. > > of course, the ix provider may also choose to provide services on > the side, > such as ntp, measurement, ... those are servers and run at layer three+. > hence they are routed. like other routed networks, if they are multi- > homed, they tend to have their own asn. > > randy > >
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