On Sat, 13 Jul 2002, Stephen Stuart wrote:
1. Deaggregation to help spread out traffic flow. As someone who used to send a lot of traffic toward some big providers, it can be hard to balance traffic efficiently when all you get is one short prefix at multiple peering points. Having more-specifics, and possibly even MEDs that make sense, can help with decisions regarding which part of a /9 can be reached best via which peering point. (And that's peering as in BGP, not peering as in settlements.)
Legend speaks of a well known BGP community referred to as 'no export', which causes people with no direct connections to $carrier to not have to listen to all that extra junk while still engineering inbound traffic w/ more specifics for people who peer directly in diverse locations. Amazing!
2. Cut-outs for those pesky dot-coms; you know, the ones with the most compelling content on the Internet jumping up and down in your face with a need to multi-home their /24 to satisfy the crushing global demand for such essentials as "the hamster dance."
Ignoring inconsistent-as for a moment, the hamster dance multihoming doesn't make the parent upstream need to _originate_ anything of the sort. Paul