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From: DIEGO LOPEZ GARCIA <diego.r.lopez@telefonica.com>
To: "Y. Richard Yang" <yry@cs.yale.edu>
Thread-Topic: [vnfpool] Follow-up question from the BOF
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Cc: "vnfpool@ietf.org" <vnfpool@ietf.org>,
 Michael Tuexen <Michael.Tuexen@lurchi.franken.de>,
 "mls.ietf@gmail.com" <mls.ietf@gmail.com>
Subject: Re: [vnfpool] Follow-up question from the BOF
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Hi,

As one of the supporters of the idea of not leaving state management out of=
 scope, I am glad to see Richard's proposal and happy to support the idea o=
f exploring a solution able to encompass vendor specific approaches.

Be goode,

On 24 Jul 2014, at 07:47 , Y. Richard Yang <yry@cs.yale.edu<mailto:yry@cs.y=
ale.edu>> wrote:


Martin, Michael,

IPR concerns are valid, but if they are crucial to solve the problem, and t=
he solution provides higher benefit, they could be addressed, right?

Regarding vendor specific solution, this is a very good point! Please take =
a look at approaches such as merge/split. They allow vendor specific packag=
ing of NF state. Hence, transfers of state can be only among NFs of the sam=
e vendor. The advance, however, is that at least the controller can be diff=
erent from the NF vendors. This is a good progress, in my view. Make sense?

Richard

On Jul 24, 2014 7:09 AM, "Michael Tuexen" <Michael.Tuexen@lurchi.franken.de=
<mailto:Michael.Tuexen@lurchi.franken.de>> wrote:

On 24 Jul 2014, at 06:54, Martin Stiemerling <mls.ietf@gmail.com<mailto:mls=
.ietf@gmail.com>> wrote:

> Hi Richard,
>
> Am 22.07.14 um 17:34 schrieb Y. Richard Yang:
>> Hi Martin,
>>
>> Here is one point. One constraint of the proposed work, in my view, is
>> that the scope does not consider state management. Most useful NFs are
>> stateful. Hence, removing state management from the scope is not ideal,
>> and hence is a limit. There is interesting recent progress in generic,
>> reusable NF state management, such as Merge/Split
>> (https://www.usenix.org/system/files/conference/nsdi13/nsdi13-final205.p=
df).
>> If this is included, I believe that the group can develop a lot more
>> more solutions.
>
> state management is an interesting topic, but there has been explicit com=
munity feedback during the first bof that this is not something the potenti=
al wg should be working on, as this is very vendor specific.
... and there are most likely a lot IPRs... That was one of the reasons
state sharing was excluded from the scope of RSerPool...

Best regards
Michael
>
>  Martin
>
> _______________________________________________
> vnfpool mailing list
> vnfpool@ietf.org<mailto:vnfpool@ietf.org>
> https://www.ietf.org/mailman/listinfo/vnfpool
>

_______________________________________________
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Hi,
<div><br>
</div>
<div>As one of the supporters of the idea of not leaving state management o=
ut of scope, I am glad to see Richard's proposal and happy to support the i=
dea of exploring a solution able to encompass vendor specific approaches.</=
div>
<div><br>
</div>
<div>Be goode,</div>
<div><br>
<div>
<div>On 24 Jul 2014, at 07:47 , Y. Richard Yang &lt;<a href=3D"mailto:yry@c=
s.yale.edu">yry@cs.yale.edu</a>&gt; wrote:</div>
<br class=3D"Apple-interchange-newline">
<blockquote type=3D"cite">
<p dir=3D"ltr">Martin, Michael,</p>
<p dir=3D"ltr">IPR concerns are valid, but if they are crucial to solve the=
 problem, and the solution provides higher benefit, they could be addressed=
, right?</p>
<p dir=3D"ltr">Regarding vendor specific solution, this is a very good poin=
t! Please take a look at approaches such as merge/split. They allow vendor =
specific packaging of NF state. Hence, transfers of state can be only among=
 NFs of the same vendor. The advance,
 however, is that at least the controller can be different from the NF vend=
ors. This is a good progress, in my view. Make sense?</p>
<p dir=3D"ltr">Richard</p>
<div class=3D"gmail_quote">On Jul 24, 2014 7:09 AM, &quot;Michael Tuexen&qu=
ot; &lt;<a href=3D"mailto:Michael.Tuexen@lurchi.franken.de">Michael.Tuexen@=
lurchi.franken.de</a>&gt; wrote:<br type=3D"attribution">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex; border-left:1=
px #ccc solid; padding-left:1ex">
<br>
On 24 Jul 2014, at 06:54, Martin Stiemerling &lt;<a href=3D"mailto:mls.ietf=
@gmail.com">mls.ietf@gmail.com</a>&gt; wrote:<br>
<br>
&gt; Hi Richard,<br>
&gt;<br>
&gt; Am 22.07.14 um 17:34 schrieb Y. Richard Yang:<br>
&gt;&gt; Hi Martin,<br>
&gt;&gt;<br>
&gt;&gt; Here is one point. One constraint of the proposed work, in my view=
, is<br>
&gt;&gt; that the scope does not consider state management. Most useful NFs=
 are<br>
&gt;&gt; stateful. Hence, removing state management from the scope is not i=
deal,<br>
&gt;&gt; and hence is a limit. There is interesting recent progress in gene=
ric,<br>
&gt;&gt; reusable NF state management, such as Merge/Split<br>
&gt;&gt; (<a href=3D"https://www.usenix.org/system/files/conference/nsdi13/=
nsdi13-final205.pdf" target=3D"_blank">https://www.usenix.org/system/files/=
conference/nsdi13/nsdi13-final205.pdf</a>).<br>
&gt;&gt; If this is included, I believe that the group can develop a lot mo=
re<br>
&gt;&gt; more solutions.<br>
&gt;<br>
&gt; state management is an interesting topic, but there has been explicit =
community feedback during the first bof that this is not something the pote=
ntial wg should be working on, as this is very vendor specific.<br>
... and there are most likely a lot IPRs... That was one of the reasons<br>
state sharing was excluded from the scope of RSerPool...<br>
<br>
Best regards<br>
Michael<br>
&gt;<br>
&gt; &nbsp;Martin<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; vnfpool mailing list<br>
&gt; <a href=3D"mailto:vnfpool@ietf.org">vnfpool@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/vnfpool" target=3D"_b=
lank">https://www.ietf.org/mailman/listinfo/vnfpool</a><br>
&gt;<br>
<br>
</blockquote>
</div>
_______________________________________________<br>
vnfpool mailing list<br>
<a href=3D"mailto:vnfpool@ietf.org">vnfpool@ietf.org</a><br>
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</blockquote>
</div>
<br>
<div>
<div>--<br>
PLEASE NOTE MY NEW EMAIL ADDRESS<br>
&quot;Esta vez no fallaremos, Doctor Infierno&quot;<br>
<br>
Dr Diego R. Lopez<br>
Telefonica I&#43;D<br>
<a href=3D"http://people.tid.es/diego.lopez/">http://people.tid.es/diego.lo=
pez/</a><br>
<br>
e-mail: diego.r.lopez@telefonica.com<br>
Tel: &nbsp; &nbsp;&#43;34 913 129 041<br>
Mobile: &#43;34 682 051 091<br>
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