Re: [Ibnemo] [Nfvrg] 答复: 答复: Defining a Common Model for intent

[PEDRO ANDRES ARANDA GUTIERREZ <[e-mail]>]

Aaron,

Catching up on the mailing list…

Thanks for the references. They provide a nice background to start with. Have you gone through the NEMO page and looked at the language proposed there? IMHO, after reading the papers, I find NEMO to be ‘easier’ to understand than Flowlog. Just look at the ping example :-) However, as you say, both papers are worth reading.

Best /PA
De: <Gember-Jacobson>, Aaron <[e-mail]<mailto:[e-mail]>>
Fecha: viernes, 5 de junio de 2015 19:41
Para: Sue Hares <[e-mail]<mailto:[e-mail]>>
CC: PEDRO ANDRES ARANDA GUTIERREZ <[e-mail]<mailto:[e-mail]>>, "zhangyali (D)" <[e-mail]<mailto:[e-mail]>>, DIEGO LOPEZ GARCIA <[e-mail]<mailto:[e-mail]>>, "[e-mail]<mailto:[e-mail]>" <[e-mail]<mailto:[e-mail]>>, "[e-mail]<mailto:[e-mail]>" <[e-mail]<mailto:[e-mail]>>, "[e-mail]<mailto:[e-mail]>" <[e-mail]<mailto:[e-mail]>>
Asunto: Re: [Nfvrg] [Ibnemo] 答复: 答复: Defining a Common Model for intent

Flowlog is a "network SQL" for SDN (https://www.usenix.org/conference/nsdi14/technical-sessions/presentation/nelson). There's also NDlog (http://www.cis.upenn.edu/~boonloo/papers/declarenet_cacm09.pdf). However, I think the level of abstraction provided by both Flowlog and NDlog is lower on the policy continuum than many expressions of intent. Nonetheless, these works may be a valuable starting point for a declarative language for intent.

Aaron

On Fri, Jun 5, 2015 at 12:14 PM, Susan Hares <[e-mail]<mailto:[e-mail]>> wrote:
Diego:

I 100% agree with your goals on creating a “network SQL that is a declarative language.

Sue

From: DIEGO LOPEZ GARCIA [mailto:[e-mail]<mailto:[e-mail]>]
Sent: Thursday, June 04, 2015 4:17 PM
To: Susan Hares
Cc: zhangyali (D); PEDRO ANDRES ARANDA GUTIERREZ; [e-mail]<mailto:[e-mail]>; [e-mail]<mailto:[e-mail]>; [e-mail]<mailto:[e-mail]>
Subject: Re: [Ibnemo] [Nfvrg] 答复: 答复: Defining a Common Model for intent

Hi,

Let me try to bring a new view on this (hence no quotation of previous exchanges) in the hope it helps to get to a common understanding.

Those of you who know me have probably heard me saying that to complete the promise of SDN we need something like a "network SQL": a declarative language based on a formal network model that would allow both defining network properties and manipulating network behavior, and, what is of capital importance in my view, support the seamless integration of these definitions and manipulations within general-purpose applications. This is my hope for intent-based networking, and that is my understanding of an intent expression.

An intent model would precisely define this formal network model on which to base the declarative language. Different models would support different views (or roles?) and therefore translate into different declarative languages, the same way we have several mechanisms to manipulate data that are not necessarily SQL.

Be goode,

--
"Esta vez no fallaremos, Doctor Infierno"

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

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Technology Exploration -
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