[e2e] e2e principle..where??....

Jonathan M. Smith jms at central.cis.upenn.edu
Sun Jun 3 16:08:53 PDT 2001

Hi Jon,

Here's a question I once posed in a debate with you at SIGCOMM in Cannes that I
have never fully resolved in my own mind. Does the end-to-end argument support
routers as they work today in the Internet? For example, why not source routing
as a more "pure" end-to-end strategy? I'm not trying to be antagonistic - I'm
trying to understand whether the routing control plane (which is network 
embedded in
the Internet) in fact complies with the e2e principle.

At 10:40 PM 6/3/2001 +0100, Jon Crowcroft wrote:

>In message 
><Pine.GSO.4.21.0106032145480.4017-100000 at phaestos.ee.surrey.ac.uk>,
>Lloyd Wood typed:
>  >>On Sat, 2 Jun 2001, David P. Reed wrote:
>  >>
>  >>> But the idea that something that is done in a
>  >>> distributed fashion is not against the end-to-end argument, if the
>  >>> distribution does not place the function into the network layer itself.
>  >>
>  >>Is the above an argument against multicast?
>given many segments are broadcast medium, yo ucould argue it is an
>argument against unicast (i.e. forward filtering in routers:-)
>  >>
>  >>L.
>  >>
>  >>all those negatives are making my head hurt.
>  >>
>  >><L.Wood at surrey.ac.uk>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>
>  >>
>  >>
>  cheers
>    jon

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