the cost of carrying routes
Some ISPs charge for actual bits carried (peak usage, actual count, whatever) in addition to or instead of per port/circuit charges. Do any ISPs charge based on the number of announcements a customer advertises? If downstream advertisements became mainly smaller prefixes (say /24) that were not aggregatable by you as their upstream ISP, would you answer the above question differently? -ron
Ron, Many carriers require that you advertise a certain minimum number of routes to them over your peering sessions, or they will not peer with you. This suggests that those carriers see routes carried as a point of value, rather than or in addition to one of cost. I have seen 5,000 routes as a minimum used by more than one transit-less carrier. Is this really an operational value perception at these carriers, or is it simply a means of creating a barrier-to-peering? Are fewer, shorter prefixes seen as more valuable than longer ones, e.g. swamp /24s? Is a University or other entity with a legacy /16 more or less valuable as a peer than a growing ISP with a few /20s, and presumably more eyeballs and/or content behind them? -- Jeff S Wheeler <jsw@five-elements.com> On Mon, 2002-10-14 at 16:47, Ron da Silva wrote: *snip*
Do any ISPs charge based on the number of announcements a customer advertises?
If downstream advertisements became mainly smaller prefixes (say /24) that were not aggregatable by you as their upstream ISP, would you answer the above question differently?
i have related question to ron's (a bit hypothetical but interesting nonetheless). if isps charged for bgp announcements, would the number of announcements that shouldn't be made (e.g., those due to configuration errors and poor operational practices) go down? -- ratul -------------- On Mon, 14 Oct 2002, Ron da Silva wrote:
Some ISPs charge for actual bits carried (peak usage, actual count, whatever) in addition to or instead of per port/circuit charges.
Do any ISPs charge based on the number of announcements a customer advertises?
If downstream advertisements became mainly smaller prefixes (say /24) that were not aggregatable by you as their upstream ISP, would you answer the above question differently?
-ron
participants (3)
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Jeff S Wheeler -
Ratul Mahajan -
Ron da Silva