North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Cogent move without renumbering (was: Cogent/Level 3 depeering)
> > I think Cogent's offer of providing free transit to all single homed > > Level3 customers is particularly clever and being underpublicized. > > For educational purposes, could someone elaborate on how this would work? > > If you're a Level3 customer with Level3 PA space (assumed, since you're > already assumed to be single-homed, and therefore very unlikely to need > PI or BGP) and move to a Cogent circuit with Cogent PA space, then you'd > be able to once again reach Cogent's view of the 'net, but then lose > Level3's view of the 'net. > > If, on the other hand, you move to a Cogent circuit, but keep your Level3 > PA space, wouldn't that at least require Cogent to announce all of these > "recircuited" customers' Level3 blocks? This could stop working if > Level3 filters those announcements, again resulting in non-reachability > for existing Level3 downstreams? > > Or, on the other hand, is Cogent's offer not exclusive of maintaining the > customer's existing Level3 circuit as well, in which case the customer > will probably incur more pain with juggling two circuits while not > speaking BGP in the first place? > > Or, is there another hand? Thanks. news flash!!! "if you use a provider's address space, you're locked in!" if you don't qualify for your own address space, see http://www.google.com/search?client=safari&rls=en-us&q=vixie+multihoming+without+bgp&ie=UTF-8&oe=UTF-8 if you decide to use a provider's address space, then you can either pay the higher cost of locked-in transit pricing, or you can pay the higher cost of having to renumber whenever you want to break the lock. in a pay-me-now-or-pay-me-later scenario, you have to pick "now" vs. "later". (it's a pity that the internet, for all its power, cannot alter that rule.) -- Paul Vixie
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