Re: Telco style routing, was What's really needed is a routing slot market

[John Levine <johnl () iecc com>]

> The way LNP works is a good example of PSTN style routing scaling. ...

> When a phone call is made, a TCAP query is launched by the originating 
> switch to a set of STPs that then route it to an LNP database, that has 
> a full list of every ported number, and its LRN, and a few other tidbits 
> of info.

Right.  That works great in an environment where the regulators
require that every telco pay Neustar to maintain the LNP databases,
and send all the updates promptly when a number is ported or
disconnected.

The telcos pay Neustar $300 million a year to run the database.  I'm
sure they'd be delighted to run a similar database for IP networks at
a similar price.  Of course, that just handles the networks in the
U.S.

Regards,
John Levine, johnl () iecc com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. http://jl.ly