[CAnet - news] Excellent papers and presentations on GENI

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 [Thanks to Biwajit Nandy for these pointers on GENI.  There are a lot of
similarities between the objectives of GENI and UCLP. We are currently
putting together a paper discussing the similarities and differences - the
abstract is below. If you would like an early draft copy please send me an
e-mail.  I was particularly struck by the following paragraph in the IEEE
paper by Turner, Peterson, et al--BSA]

".... what we mean by the term "architecture".To frame this debate, we
outline the two extreme pointsin the spectrum.1 Internet purists have a very
monolithic view of architecture: there is a single universal protocol,
currently IP, that is required in each network element and around which all
else revolves. Overlays are seen as blights on the architectural landscape,
at best necessary evils that are reluctantly tolerated. In this view,
virtualization is only a means by which new architectures are installed, not
a fundamental aspect of the architecture itself.

Others take a more pluralist approach to architecture, with IP being only
one component of an overall system we call the Internet. Overlays are just
one more way to deliver the service users want, and are no less appropriate
than any other approach to providing functionality. In this view, the
architecture is dynamic and evolving and, at any point in time, is defined
the union of the various existing overlays and protocols. The ability to
support these multiple coexisting overlays then becomes the crucial
universal piece of the architecture.
The purist/pluralist split is not just apparent in defining an architecture,
but also in evaluating it. Purists aim for flexibility of an architecture,
since it will remain in place for a long time; often this flexibility does
not result in user benefits in the short-term. Pluralists, on the other
hand, put more emphasis on short-term performance improvements, arguing that
the desired flexibility...
.


Jon Turner was the keynote speaker at Globecomm and gave an excellent.
overview on GENI initiative.
http://www.arl.wustl.edu/~jst/talks/keynote05.pdf


As well there is a related paper in the April 2005 IEEE computer magazine

Anderson, L. Peterson, S. Shenker, J. Turner, "Overcoming the Internet
Impasse through Virtualization,"  IEEE Computer Magazine, April 2005

An older version of the paper was presented at HotNets 2004
http://www.cs.princeton.edu/nsg/papers/impasse_hotnets_04/impasse.pdf


Interested in GENI? Check http://www.nsf.gov/cise/geni/ 
Interested in FIND? Check http://find.isi.edu/
Interested in NOSS? Check http://www.eecs.harvard.edu/noss/


UCLP Roadmap for creating User Architected Networks using Service Oriented
Architecture

Abstract

Around the world there are several initiatives to develop the next
generation canonical network architecture . This discussion paper provides
an alternative approach largely based on two significant development, first:
the trend for more users to own, control and manage their own network
resources and secondly: the demand by  big science and large enterprises to
have  dedicated network resources for the data flows generated by their high
end applications. As opposed to other approaches  a key assumption in this
discussion paper in regards to network architecture is that there is NO
canonical network architecture. Instead this document describes  new
features and enhancements to the current implementations of the User
Controlled LightPath (UCLP) software which will enable users to define their
own  packet or switched based network architecture including topology,
routing, Quality of Service (QoS)  and protocols based on the concept of
many separate and independently managed Articulated Private Networks (APN)
operating on top of one or more network substrates in different ownership
domains. APNs can be considered as a next generation Virtual Private Network
where, rather than signaling for a single end to end connection, a user can
create a complex network structure, in any way they wish, by binding
together layer 1 through 3 network links, instruments, computers, time
slices and virtual or real routing and/or switching nodes.  This capability
is enabled through UCLP by representing all such network element, devices
and links as web services, and by using  web services workflow as the tool
to allow the user to bind together their various web services to create a
long lived APN instantiation. With web services workflow the user also has
the ability to offer all, or portions of their APN as a web service (or set
of services) in is own right to other downstream users.


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