Following the IAB Open Architecture meeting at the Vienna
IETF, the IAB proposed the creation of a mailing list forum
for further discussion of the architectural topics raised.
See below for the charter and particulars of that mailing
list forum, which is now open for subscription and participation.
Thanks,
Leslie,
for the IAB.
Scoped Address Architecture Discussion list
List: saad@ietf.org
Subscribe: saad-request@ietf.org
Moderator: Eric Rescorla
We have specified an Internet that works, at the network layer,
using relatively stable but not permanent identifiers for connection
endpoints, which are allocated and administered using a topology
dependent model, implying a service provider dependent model.
But we run into problems (the architecture doesn't quite fit) when
we try to address some scenarios encountered in real life:
. multihoming
. assembling a local network without necessarily
having to contact an ISP to obtain address space
(e.g., home net)
. renumbering local networks without significant pain
. working with wireless networks, where the concept of "link"
can be quite fuzzy
Some proposed solutions are challenged in terms of:
. providing referential integrity - how is referential
integrity maintained when identifiers are not globally
unique or are overloaded?
. choosing between different identifiers for an object which
has different "reachability" and the reachability is
context-dependent
. security/transiting trust in layered address
resolution
. providing solutions that work across all layers of
the stack and all areas - how do we find a solution
that is great for routing but also great for security?
The purpose of this mailing list is to identify and clarify the types of
problems we are encountering with the current architecture, and
to debate the merits of approaches that:
. provide scoping at the IP layer
. provide scoping at some other (single) layer
. provide new addressing paradigms that span several layers
Out of scope for this discussion list are:
. discussions of specific proposed "solutions" (except as
illustrations for discussing problem types, and merits of
general approaches)
