[Tsvwg] Re: [e2e] e2e principle..where??....

David P. Reed dpreed at reed.com
Mon Jun 4 12:30:08 PDT 2001

At 10:42 AM 6/4/01 -0400, Manish Karir wrote:
>but how come e2e concerns never came up when PPP header compression
>was first developed...:)
>this is another example of something that is used almost everywhere,
>but is not strictly e2e.

Since PPP is entirely below the IP layer, and transports IP datagrams 
without modification, it is completely compatible with the end-to-end argument.
The end-to-end argument does not say what happens inside the network - bits 
can be coded using red, blue, and quantum spins and packets can be 
compressed in any way.  As long as the packet gets delivered as sent 
(perhaps in legal fragments), at the destination address, and the bits are 
unmodified from the way they were sent, then the network performs no 
function for IP that is different from a straight wire.

>- David

WWW Page: http://www.reed.com/dpr.html

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