[e2e] What is the meaning of "end-to end"?

demir demir at usc.edu
Mon May 21 16:58:17 PDT 2001

Ooops. From "not unicast routing" cyriptic, my conclusion was:
n  = 0  : Nocasting
n  = 1  : Unicasting
n >= 2  : Multicasting

where n determines "the number of casting". However, I see that I
interpreted "n" in two different ways in my below comments. :) I'll be
more careful :)

Alper K. Demir

On Mon, 21 May 2001, demir wrote:

> > As for the meaning of "end-to-end", I hope you will not think me
> > frivolous if I say that it means what it says.  In any computer
> > communication, there are n >= 2 end points, called "end systems" by the
> > OSI folks and "hosts" by the Internet crowd (or sometimes vice versa).
> > End-to-end protocol issues are those that operate between (or among)
> > two (or more) end systems.  In this (simplistic) view, the network has
> > two parts, the "ends" (hosts) and the middle (routers).  Because of the
> > statelessness of Internet routers, end-to-end issues are particularly
> Philosophically, I think, n >= 0. However, traditional computer
> communication systems are based on n >= 2. I assume the "complexity"
> depends on how big n is. 
> Alper K. Demir

More information about the end2end-interest mailing list