On Sep 13, 2007, at 2:34 PM, Iljitsch van Beijnum wrote:
The idea is this: An "association" is an end-to-end relationship
between a pair of applications that potentially spans several
transport lifetimes.
Wouldn't that be the OSI session layer (that IP doesn't have)?
Not necessarily. A 'session' in the OSI verbiage (at least as far as
I can understand it ;-), spans across individual transport
connections. The de-facto session layer that we have today in IP is
an ssh tunnel, with applications tunneled across it and some very
poor security within that tunnel.
A key question here is whether the 'association' is a single
connection or not. While the association may span the change of
underlying infrastructure, the real question is whether it presents a
single concatenated transport abstraction or if it's multiple
connections. I think we need the former.
Tony
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