On Dec 17, 2009, at 1:02 AM, Flinck, Hannu (NSN - FI/Espoo) wrote:
Most of the scalability discussions we have had are dealing exactly
with
the mapping system, not how to tunnel or rewrite the addresses. The
mapping system is the architecture that uses the tunnels or address
manipulation based on some address structure. A tunneling
scheme/address rewrite together with an address structure is not
sufficient for scalabilty.
- Hannu
Hi Hannu,
I agree that the mapping itself is a critical part of the
architecture. However I believe a mapping proposal needs to go
together with an overall architecture, because one needs to know where
mapping happens, mapping what to what.
Take a simple example: ILNP has kind of mapping (implemented in DNS)
and LISP has another kind of mapping, 2 different proposals have
rather different mappings.
Lixia
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of ext Tony Li
Sent: Tuesday, December 15, 2009 11:52
To: Brian E Carpenter
Cc: [email protected]; Lixia Zhang
Subject: Re: [rrg] belated msg: further description of the
recommendation process
Brian E Carpenter wrote:
Mapping systems are obviously a component of a solution but are not
by themselves a solution. To be considered seriously, they
should be
used in conjunction with some network layer solution.
Hmm. Don't you think that to some extent these should be orthogonal?
A mapping mechanism needs to meet the specific requirements of a
network layer mechanism, but that doesn't require the two to be
irrevocably bound to each other.
I have a feeling that the mapping system should be very general in
nature, in case the first cut at either the locator or identifier
space proves to fall short. Also I feel it should support hierarchy,
even if we don't need a hierarchy from the start.
Brian,
Our recommendation is focused on providing an alternative
routing architecture. A mapping system is a fine component,
but would not seem to provide a credible architecture by itself.
Tony
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