Re: [altoext] [alto] i2aex BOF - SDN Use Case

Ping Pan <ping@pingpan.org> Sun, 25 March 2012 12:05 UTC

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From: Ping Pan <ping@pingpan.org>
Date: Sun, 25 Mar 2012 14:04:37 +0200
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To: ZongNing <zongning@huawei.com>
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Cc: "altoext@ietf.org" <altoext@ietf.org>, "Vijay K. Gurbani" <vkg@bell-labs.com>, "alto@ietf.org" <alto@ietf.org>, Spencer Dawkins <spencer@wonderhamster.org>, Tina TSOU <Tina.Tsou.Zouting@huawei.com>
Subject: Re: [altoext] [alto] i2aex BOF - SDN Use Case
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Concur.

ALTO is currently used in support of P2P and CDN operation. It has the
functionality to query the network topological data. However that's where
the similarity with SDN ends. Running them together, how are they
inter-related?

Also you have brought up the concept of SDN Domains. What are they? Who
owns them? Why do we need them? For scaling? For admin? If for scaling, SDN
controller intrinsically has no scaling problem per sa. For admin, SDN is
to offer an overlay architecture on top of the network with a uniformed
view from application perspective, which is opposite of having some sort of
peering models. Please elaborate your thoughts.

On Sun, Mar 25, 2012 at 12:52 PM, ZongNing <zongning@huawei.com> wrote:

> Hi, Tina,
>
> Very interesting topic! One comment after a quick review:
> In page 5 in the slides, it seems that you prefer to put ALTO on top of
> SDN controller. I am wondering if the primary goal of ALTO-SDN is for
> better SDN control or better ALTO service?
> If the goal is for better SDN, then how ALTO could help SDN? Receive
> information from SDN controller, then combine with other ALTO information
> and feedback to SDN?
> Also in page 5, I don't understand why the data are forwarded from SDN to
> ALTO?
> Would you please elaborate this? Thanks.
>
> -Ning
> ________________________________________
> From: altoext-bounces@ietf.org [altoext-bounces@ietf.org] on behalf of
> Tina TSOU [Tina.Tsou.Zouting@huawei.com]
> Sent: Sunday, March 25, 2012 5:14 AM
> To: Vijay K. Gurbani; Spencer Dawkins
> Cc: altoext@ietf.org; alto@ietf.org
> Subject: Re: [altoext] i2aex BOF - SDN Use Case
>
> Attached are the updated slides after some discussion with chairs. Thank
> you.
> C u soon in Paris.
>
> Tina
>
>
> > -----Original Message-----
> > From: altoext-bounces@ietf.org [mailto:altoext-bounces@ietf.org] On
> > Behalf Of Tina TSOU
> > Sent: Friday, March 23, 2012 4:34 PM
> > To: Vijay K. Gurbani; Spencer Dawkins
> > Cc: altoext@ietf.org; alto@ietf.org
> > Subject: [altoext] i2aex BOF - SDN Use Case
> >
> > Dear i2aex BoF chairs,
> > Attached please find slides for
> >
> > Infrastructure to Application Exposure (I2AEX) Use Case
> >
> >  - Software Define/Driven Networking (SDN)
> >
> >
> > Comments are welcome.
> >
> >
> > Tina
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