Re: [altoext] i2aex BOF - Large Bandwidth Use Case

DIEGO LOPEZ GARCIA <diego@tid.es> Sun, 08 April 2012 14:14 UTC

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Date: Sun, 08 Apr 2012 16:14:24 +0200
From: DIEGO LOPEZ GARCIA <diego@tid.es>
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To: Greg Bernstein <gregb@grotto-networking.com>
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Thread-topic: [altoext] i2aex BOF - Large Bandwidth Use Case
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Subject: Re: [altoext] i2aex BOF - Large Bandwidth Use Case
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On 4 Apr 2012, at 19:34 , Greg Bernstein wrote:
> It is very interesting to compare the different notions of "Network as a Service" (NaaS) and see what type of additional information various NaaS notions would require from the network.
>
> . . .
>
> It seems that the graph based I2AEX extensions that we like would apply to (a) and (d), and to all casesl if traffic engineering (layer 2 or 3) is desired.  Comments? Other examples that we should look at? I'm working to formalize the graph stuff we showed at the BoF in proper ALTO protocol form and should have a draft in a few more weeks.

My take is that the NaaS proposals are tailored to the kind of user communities
they address. As far as I understand them, both Mantychore and GEYSERS intend
to provide additional tools to network engineers themselves, and therefore
expose a more detailed network abstraction. Two remarks that come to my mind
is that I definitely have to look into Quantum in more detail, and the
interesting fact that GEYSERS is intended to have bidirectional information
flows (describing computing resources as well).

The i2aex interfaces shall be able to deal to these different level of
abstraction and with the different abstract models that different use cases
rely on. For example, in the DC case a L2 abstraction seems the most
appropriate (hiding overlay details), while a CDN will likely want to know
about L3 topology details (albeit in a rather management rather than physical
manner).

And I'm looking forward to seeing your formalization proposal.

Be goode,

--
"Esta vez no fallaremos, Doctor Infierno"

Dr Diego R. Lopez
Telefonica I+D
http://people.tid.es/diego.lopez/

e-mail: diego@tid.es
Tel:    +34 913 129 041
Mobile: +34 682 051 091
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