Re: [RRG] Geographic aggregation-based routing

[Brian E Carpenter <brian.e.carpenter@gmail.com>]

On 2008-07-11 16:19, William Herrin wrote:
> On Thu, Jul 10, 2008 at 4:19 PM, Brian E Carpenter
> <brian.e.carpenter@gmail.com> wrote:
>> Oh, [geographic routing will] work just fine if you deploy a municipally-funded,
>> neutral and zero-fee IXP in every population centre. Admittedly,
>> that changes the entire economic structure of the network...
> 
> Brian,
> 
> As it turns out, even that wouldn't be good enough. Take a look at the
> example I gave. You'd also need to single-source all the links between
> the IXPs so that regardless of which links the packet travels between
> them, you pay the same entity.

That makes sense, unless they are all funded pro bono. Basically, it
would only work in a non-competitive economy. (What does that remind
me of? Oh yes, the telephone system pre-liberalisation.)

   Brian

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