[ppml] Soliciting comments: IPv4 to IPv6 fast migration

[Ted Mittelstaedt]

>-----Original Message-----
>From: ppml-bounces at arin.net [mailto:ppml-bounces at arin.net]On Behalf Of
>William Herrin
>Sent: Friday, July 27, 2007 9:14 AM
>To: Keith W. Hare
>Cc: ppml at arin.net
>Subject: Re: [ppml] Soliciting comments: IPv4 to IPv6 fast migration
>
>
>On 7/27/07, Keith W. Hare <Keith at jcc.com> wrote:
>> With some amount of push from customers and lawmakers, the telephone
>> companies have moved from Provider Agregatable phone numbers to Provider
>> Independent phone numbers.
>
>That's a great point Keith. And here's the nasty part: because they
>waited until the issue was forced, they had to make it fully PI,
>individual number by individual number. They lost the option to use
>some sort of sensible grouping strategy.
>

I think we have carried this analogy to the point of silliness.

Area codes still create groups.  But more importantly, the phone
number can be an abstraction because it is only used 1 time during
the call - at the beginning for the phone switches to setup the
call.  Once that is complete and the query into the lookup table
that matches the PI phone number to the internal routing number used
by the phone company  is complete, the table isn't queried again.

With IP traffic, to implement something similar to a PI IP address,
you would have to have every non-edge router on the Internet make
a query to a lookup table of some sort, and they would have to do it
for every packet.  For a VoIP phone call that might have 10,000
packets in the entire call that passes through the routers during
call existence.  You can't do a query for each packet.  That is why
IP is still going to require some sort of "sensible grouping"
and why telephone numbers don't.

Ted