[e2e] a means to an end
David P. Reed
dpreed at reed.com
Mon Dec 1 16:22:41 PST 2008
Any layering builds from something ... so it's interesting what you
posit as the base case from which the mathematical induction follows.
There is an alternative to layering: constructing a system that
recurses or contains a looped-back-upon-itself dependency, in which
case, the resulting behavior can be characterized by the
least-fixed-point (LFP, result of the Y combinator, or some other
formulation) of the functional recursion.
I realize these are abstract mathematical concepts, not always taught to
the kids these days. HTML and Python are thought to be verging on too
Regarding the IRTF DTN stuff: is the system layered or based on a least
L.Wood at surrey.ac.uk wrote:
> Interesting that he thrust of current IRTF delay-tolerant
> networking work has effectively turned your statement below
> on its head, in believing that there is no need for reliability
> at the top of the network, and no need for location at the top
> of the network, either.
> How the network base assures sufficient reliability and assures
> that endpoint identifiers map to something meaningful would seem
> to be open problems...
> <http://www.ee.surrey.ac.uk/Personal/L.Wood/><L.Wood at surrey.ac.uk>
> > Just as there is no need for "reliability" at the base of the network,
> > there is no need for "location" at the base.
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