Re: Send-n, rat holes and real issues
Otmar Lendl <[email protected]>
| Newsgroups | gmane.ietf.enum |
|---|---|
| Message-ID | <[email protected]> |
On 2008/07/04 12:07, Duane <[email protected]> wrote: > Jay Daley wrote: > > > Exactly!! Which is why we need send-n. > > Just because you need a solution to a problem doesn't mean it must > replicate what PSTN systems already do that's just crazy. > > Has no one actually got a valid criticism for my suggestion of doing > this as a routing type protocol rather than this hack job on ENUM? > > Seems most ignored my suggestion completely except for one remark about > TRIP. We (including speermint) have been though that discussion already a few times. A BGP-like protocol for numbers (or better: prefixes) just won't scale. One part of what makes BGP work for IP routing is the aggregation properties of IP addresses: large blocks are given to ISPs, which give out smaller blocks to enterprises, or just individual addresses to end-users. The rest of the world doesn't care how this ISPs handed out addresses, a single entry in the global routing table suffices. It used to be the case that phone numbers worked in a similar fashion: country codes, block allocation, individual number assignment. Perfect for prefix-based routing. Now add one table-spoon of "number portability" to your stew, season it with "premium rate" and "freephone" numbers and watch your routing tables explode. More technically: phone numbers used to be addresses. Now they are names. It used to be that the equivalent of phone numbers were IP addresses. This no longer holds. If you really want to compare them to Internet objects, take domain names. So, how do *you* like the idea of a BGP like routing protocol for domain names? /ol -- // Otmar Lendl <[email protected]>, T: +43 1 5056416 - 33, F: - 933 // nic.at Internet Verwaltungs- und Betriebsgesellschaft m.b.H // http://www.nic.at/ LG Salzburg, FN 172568b, Sitz: Salzburg