Re: [Supa] PPT for agenda 5a （Gap analysis from SUPA's view）

[John Strassner <[e-mail]>]

I agree with Bob.

I think that ONOS is applicable **as long as we take intent-based policy
models seriously**. Right now, I have seem some work on ECA policy rules,
but no work of any substance of undertaken in SUPA. (Well, to be honest, I
could argue that the intent-based work is not that substantive in other
areas as well...).

This begs the question, will we in SUPA do **both** ECA policy rules and
**intent-based (i.e., declarative)** policy rules? I said that we would in
the PBSM presentation, but **I would suggest that we add something to the
charter**, as the content and structure of ECA policy rules is very
different than that from intent-based policy rules.

That being said, I have the following comments on slide 6:
ODL has TWO approaches: GBP and NIC. GBP is really a relational model of
how two EPGs communicate and interact, while NIC is a different, more
generic, effort.

Comments on slide 7
In principle, OpenStack NIC is similar to ODL NIC. GBP was first defined in
ODL, so I would cover GBP in the ODL section in slide 6, and then simply
reference it here on slide 7.

OpenStack Congress on slide 7 needs some serious rework:

   - Congress is meant to drive all other OpenStack projects; it doesn't so
much "work in conjunction with keystone" as express facts and policies that
Keystone (or other modules) can use.

    - Congress is **based** on Datalog, but extends it in a number of ways
(I am one of the committers to the Congress grammar)

    - Datalog is entirely declarative, but is **not** pure first-order
logic (it is a subset of)

    - Congress does not yet "enforce" anything. Rather, it states what
should or should not be done or occur, and then some other entity fixes that

    - Congress is neither a "problem finder" or an "intelligent solver"
(especially the latter). Congress is basically a query language. We have
proposed Rule-X as an intelligent multi-constraint optimization solver that
will work with Congress. With respect to "problem finder", I assume you
mean "answer set programming" - AFAIK, nothing is yet prepared for this.

Please make these changes asap.

Finally, the gap analysis should also cover the TMF. I'll build a slide for
you on this later today.


regards,
John






On Thu, Mar 19, 2015 at 5:05 AM, Natale, Bob <[e-mail]> wrote:

>  Hi Jun,
>
>
>
> Thanks … helpful deck for those of us trying to keep up with everything on
> a part-time basis!
>
>
>
> However, I believe that discussion of “Other working groups” starting on
> slide #5 should also cover the (open source) Open Network Operating System
> (ONOS) project’s Intent Framework, which would seem to provide a somewhat
> higher-order context for possible PBSM implementation based on
> Intents/Goals driving E-C-A rules. See http://onosproject.org/, and
> especially
> http://onos.wpengine.com/wp-content/uploads/2014/11/ONOS-Intent-Framework.pdf
> .
>
>
>
> Or perhaps there some specific reasons why ONOS Intent Framework does not
> apply to the SUPA work…?
>
>
>
> Avanti,
>
> BobN
>
>
>
> *From:* Supa [mailto:[e-mail]] *On Behalf Of *Jun Bi
> *Sent:* Thursday, March 19, 2015 7:53 AM
> *To:* '[e-mail]'
> *Subject:* [Supa] PPT for agenda 5a （Gap analysis from SUPA's view）
>
>
>
> Hi All,
>
>
>
> The attached file is the PPT for agenda 5a (Gap analysis from SUPA's view).
>
>
>
> The draft was submitted by the deadline weeks ago,
>
> but the PPT is enhanced to reflect the recent discussions.
>
>
>
> Best Regards,
>
> Jun Bi
>
>
>
>
>
> *SUPA BOF Agenda*
>
> Monday 3/23/2015
>
> Afternoon Session I - 13:00 to 15:00
>
>
>
> 1. Note Well, logistics, agenda bashing (chairs, 5 min)
>
> 2. Introduction and scoping of BoF (AD and chairs, 5 min)
>
> 3. Policy Driven Service Management - John, Fukushima (15 min)
>
> 4. Distributed Data Center Use Case - TBA (15 min)
>
> 5. Gap Analysis
>
>   5a. SUPA view – Jun Bi (10 min)
>
>   5b. Related Work in the Routing Area - Susan (10 min)
>
>   5c. Related OpenSource Projects: OpenStack Congress, GBP, ODL GBP/NIC -
> Tom (10 min)
>
> 6. Scope Discussion - 30 min
>
> 7. Questions to the audience (chairs, 15 minutes)
>
>
>
>
>
>
>
> _______________________________________________
> Supa mailing list
> [e-mail]
> https://www.ietf.org/mailman/listinfo/supa
>
>


-- 
regards,
John