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Mika Liljeberg wrote:
On Wed, 2003-08-27 at 20:21, Keith Moore wrote:
what has changed is that we're now expecting a layer 3 that was designed
for relatively stable networks of wired hosts to suddenly accomodate
mobile and nomadic hosts and networks, without significant change.
TCP/IP was designed for such networks. What has changed is that we no
longer have provider indepdendent addressing. Which means routing
protocols can no longer do the job.
Routing protocols can keep doing a perfect job as they are.
An ISP has a TLA in IPv6 and it provides routability from and
to the address space in this TLA. That is the routing part:
sending a packet from A to B. Just like your postal address.
The Identifier part goes on top of that making the packet
have a signature, saying "this packet is from me".
Then there is a third part in the process which allows
a single identity to have multiple Routing IP's: postal addresses.
Just like one can send you a postal packet to your office and
to your work address, both with your name on it which
will make sure that it arrives at you.
Thus we don't need PI, which is a stupid pain on the
routing tables. We need Identifiers.
Greets,
Jeroen
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