[e2e] new network architecture idea -

Jonathan M. Smith jms at central.cis.upenn.edu
Mon May 22 07:31:58 PDT 2006

	Isn't this architectural scheme similar in spirit to the Linda
distributed system of Gelernter and colleagues?

Jonathan M. Smith
Olga and Alberico Pompa Professor of Engineering and Applied Science
Professor of Computer and Information Science, University of Pennsylvania
Levine Hall, 3330 Walnut Street, Philadelphia, PA 19104

On Sun, 21 May 2006, Jon Crowcroft wrote:

> pub/sub in the original implementation by tibco et al mapped straight onto multicast
> AND had its own transport (PGM) which was a neat architecture
> BUT i am not talking about simply pub-/sub - that was for illustration reasons...
> at the end of th day, the receiver has some stuff they are interstd in - you buy
> newspaer x, or you tune to tv or radio station y/z OR you subscribe to some
> belief....all of this is *AND should be* receiver interst based, not sender based
> even email (I'm not interested in most the spam i get  - this is an indication of a major architectual error
> that the cost of an activity for a pasrticipant doesnt match the need -
> and the resource expended isnt paid for by the right party)
> packet swarming is a simple idea - you need to buy into some complete changes of
> ways of building net s (you dont send to an address - you percolate traffic to a repository
> cloud which intersted parties may pick packets out of  - this works even for 1-1 commnication
> (if you send an email to e2e but cc: me, i might see it as i probably "subscribe" to messages
> with some field about me - hey, i am sufficiently egomaniacal to want to see stuff like that:)
> the technoligy exiwts now to do this at a packet level, not just an application level
> In missive <D5775030-CA8B-4329-A7EC-BFC1A56DD3D4 at cisco.com>, Fred Baker typed:
>  >>
>  >>On May 20, 2006, at 4:17 PM, Fergie wrote:
>  >>
>  >>> pub/sub how, exactly?
>  >>
>  >>I think of pub/sub as an application concept:  I have content I am
>  >>willing to share, and someone else tells me that they are interested.
>  >>In this context, I should think the receiving node would tell the
>  >>sending node that it was interested if the other guy wanted to talk.
>  >>
>  >>So now I wonder how this works. I walk into a meeting room and open
>  >>my laptop. It joins a wireless network, and voila! the peers and
>  >>servers I am interested in all tell me that they are publishing
>  >>something to which I might subscribe?
>  >>
>  >>I think this is going to require some work to describe. At the end of
>  >>the day, it is never the receiver that knows there is content out
>  >>there to receive; it is always the one who sends it who has that
>  >>knowledge.
>  cheers
>    jon

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