Hi Antonio,
Thank you very much for reading the draft and your feedback. See below:
> I found a new version of draft-penno-alto-protocol
> (draft-penno-alto-protocol-03.txt) and I have a question about it.
> Since an ALTO Server presents to ALTO clients its "my--Internet View",
> it may be reasonable for this view to be accurate in describing "near"
> Network Locations and being less and less accurate when we move away
> from them. So my question is: is there a way to represent "the rest of
> the world"?
> It seems, reading section 6.3.2.2, that every endpoint is mapped to a
> PID (since there's nothing like a 404 "No PID for the endpoint" response
> available), so we may group all the "far" networks we have few
> information about ("the rest of the world") within a PID. The problem
> with this approach would be how to answer to a Reverse PID Property
> Lookup on such a PID (enumerating all network maps of far networks?).
> Have you already addressed this issue?
When mapping from IP addresses into PIDs, an ALTO Client can use longest-
prefix matching. This will be stated explicitly in the next revision of the
document.
Thus, the "rest of the world" can be represented simply as the 0/0 IP prefix.
The prefix can be assigned to either an existing PID (along with other
prefixes), or allocated to its own PID. This is indeed what we have done in
the P4P tests.
For example, the ALTO Server's reply from Reverse PID Property Lookup can
including the following mappings:
PID1: 128.36.0.0/16 130.132.0.0/16
...
PIDDEFAULT: 0.0.0.0/0
--
Richard Alimi
Department of Computer Science
Yale University
_______________________________________________
alto mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/alto
