Re: A DNS Based Mapping Peering System for Peering CDNs

[Martin May <Martin.May@activia.net>]

Fred Douglis wrote:

> Actually, at a not-quite-so-quick glance, I saw that I-D referenced,
> and went back and searched for citations to it.  I see that there
> are a few comparisons scattered about that weren't immediately obvious,
> but I still wonder whether this addition isn't better suited as a
> revision to [5] rather than a separate draft.  Again, this is only on
> a fairly cursory examination, and by way of explanation.

I've got no problems to include our work into the known mechanisms
draft. However, our draft does not explain an existing mechanism
but proposes the use of "delivery aware" DNS names for request
mapping in peering systems.


Abbie Barbir wrote:

> However, the draft proposes a particular way for peering deliver aware
> CDNs. I do like the work that was done by the authors to describe the
> DNS-MS system in terms of trees. I think that the same result could also
> be reached if a particular CDN is thought off as a collection of sub-CDNs
> each specializing in the delivery of a certain type of content.

We work on this issue. Indeed, we are about to propose the exchange of
"mapping tables" (PMT)  during the peering process. A tree based DNS-MS
system simplifies the peering exchange especially if footprints are
used.

Martin