[e2e] Switched Ethernet is Not an End-to-End System; was Protocols breaking the end-to-end argument

Jon Crowcroft Jon.Crowcroft at cl.cam.ac.uk
Sat Nov 14 02:21:07 PST 2009

In missive <4AFDCC91.9080400 at bennett.com>, Richard Bennett typed:

 >>Are you claiming the cell network is an edge-managed system? I don't 
 >>think so.

given the overload on 3G backhauls being experienced by many
with the onslaught of handset devices whose capabilities
are no longer dictated to by cellular providers, that is
exactly what I am claiming, evidentially and technically

plus the only way they are going to cope with deploying
enough capacity to cope with demand is to build cooperative
wireless edge networks - you can't get enough classic model
cell towers out there (ignore femtocell hype - whatever you
do you want path diversity and that needs a non hierarchical

if you think i was referring to the _old_ cellular voice system 
then you have misinterpreted what i am banging on about

c'est la vie
 >>Jon Crowcroft wrote:
 >>> given there's 4.3billion wireless cellular devices in the world
 >>> and growing, i can't believe people are still baning on about 
 >>> switched networks taking over from shared media - the fact is that
 >>> the edge AND the center are statistically multiplexed resources
 >>> and the wished for simplicity of isolation and protection you get from
 >>> some global switched system is flying in the face of all the trends.
 >>> oh, sure, you find strict resource allocation in enterprise nets
 >>> and "carrier grade" ethernet installations are fine and dandy in their
 >>> niche environments, but its a niche.
 >>> in fact, as we get more and more mimo and network coding,
 >>> and other new ideas for content centric networking,
 >>> which cross layer storage/cache and packet switching
 >>> the system looks less and less like some sort of 
 >>> graph in the interconnect layer at all - 
 >>> in fact it looks less end2end at any layer at all
 >>> can we start an entire new name&list for this new model
 >>> whatever it is, coz this discussion isn't part of any future
 >>> i recoznize, and is hauling over coals that have 
 >>> long gone cold.
 >>> j.
 >>Richard Bennett
 >>Research Fellow
 >>Information Technology and Innovation Foundation
 >>Washington, DC



More information about the end2end-interest mailing list