Hi,

I am under the impression we have here a misunderstanding caused by the 
concepts in NFV and what we are defining in I2NSF. I agree with John in that 
the Registration Interface should not be used for exchanging operational 
status, just to register and deregister NSFs and their capabilities. But there 
is an NFV process (the so-called “onboarding”, essentially including it in a 
catalog of available software-based functions) that should imply an exchange 
through the Registration Interface, and could be seen as an operational 
exchange. Anyway, this misinterpretation can be solved if we realize such 
onboarding is not a lifecycle operation, but the pre-condition for starting the 
function lifecycle.

Be goode,

On 16 Jul 2017, at 21:33 , John Strassner 
<[email protected]<mailto:[email protected]>> wrote:

> In the I2NSF framework, the basic purpose of the registration
> interface is to register an NSF into the system.

The registration interface is also used to register NSF Capabilities.

> In addition to this purpose, however, the registration interface
> can be also utilized for dynamic life cycle management of NSFs.

I disagree. The only operations that this interface should support
are register and deregister, for both NSFs and Capabilities.
Operational status SHOULD NOT be put in this interface.

> For example, the security controller can request the developer's
> management system (DMS) to create a new NSF instance.
> The registration interface DM defines the data model that is
> required to enable this additional functionality of the
> registration interface.

That is not, imo, "dynamic lifecycle management". That is simply
performing a registration operation. OAM info SHOULD NOT
be put into a registration interface.

> On the other hand, the capability DM can be used to describe
> the security capability of a new NSF instance to be created by
> the DMS along with its location and IT resources.

Again, this is **just** a registration operation. I fail to see how
this has anything to do with lifecycle management.

regards,
John

On Thu, Jul 13, 2017 at 7:38 AM, Mr. Jaehoon Paul Jeong 
<[email protected]<mailto:[email protected]>> wrote:
Hi Frank,

In the I2NSF framework, the basic purpose of the registration interface is
to register an NSF into the system.
In addition to this purpose, however, the registration interface can be
also utilized for dynamic life cycle management of NSFs.
For example, the security controller can request the developer's management
system (DMS) to create a new NSF instance.
The registration interface DM defines the data model that is required to
enable this additional functionality of the registration interface.

On the other hand, the capability DM can be used to describe the security
capability of a new NSF instance to be created by the DMS along with its
location and IT resources.

Thanks.

Best Regards,
Paul

On Wed, Jul 12, 2017 at 6:54 PM, Xialiang (Frank) 
<[email protected]<mailto:[email protected]>> wrote:
Hi Paul,
Thanks for your clear clarification. I share the same idea with you.
Actually, in the latest draft-xibassnez-i2nsf-capability, we have separated 
capability and security policy information model distinctly.

So, my further question is what is the relationship between the capability DM 
draft and registration interface DM?

Thanks!

B.R.
Frank

发件人: I2nsf [mailto:[email protected]<mailto:[email protected]>] 代表 
Mr. Jaehoon Paul Jeong
发送时间: 2017年7月10日 23:21
收件人: Linda Dunbar
抄送: [email protected]<mailto:[email protected]>; Adrian Farrel; 
[email protected]<mailto:[email protected]>
主题: Re: [I2nsf] relationship between draft-hares-i2nsf-capability-data-model-03 
& draft-kim-i2nsf-nsf-facing-interface-data-model-02? (was RE: Request for 
Timeslots in I2NSF WG Meeting

Hi Linda,
Here is the clarification between NSF-facing interface YANG data model and 
Capability YANG data model.

NSF-facing YANG data model is used to configure the rules of a policy into NSFs.
This YANG data model is a standard interface for Security Controller to 
manipulate NSFs
developed by various vendors.

Capability YANG data model is used to retrieve capability information of an NSF.
For example, after an NSF for network security control (i.e., firewall) 
inspects a packet and
needs an additional security function such as deep packet inspection (DPI),
it can ask Security Controller the location of such an additional security 
function and
the corresponding IT resources with the Capability YANG data model.

In summary, Capability YANG data model is used to query the capability 
information of
a requested NSF and NSF-facing YANG data model is used to configure the rules of
a policy (e.g., add/delete/update/read) based on an ECA paradigm.

Thus, since these two models have different purposes, I think that we need to 
have two YANG drafts.

Thanks.

Best Regards,
Paul

On Sat, Jul 8, 2017 at 8:24 AM, Linda Dunbar 
<[email protected]<mailto:[email protected]>> wrote:
Paul and Sue:

You requested slots for both draft-hares-i2nsf-capability-data-model-03 & 
draft-kim-i2nsf-nsf-facing-interface-data-model-02.

The abstract of draft-kim-i2nsf-nsf-facing-interface-data-model-02 stated that 
the draft defines the data model for network security functions), such as 
network security control, content security control, and attack mitigation 
control,..

The draft-hares-i2nsf-capability-data-model-03 has specified the High-Level 
YANG for Network Security Control, Content Security Control and Attack 
Mitigation Control.

How are those two drafts related?  I have a vague memory that those two drafts 
are to be merged, are they?

Thank you very much,

Linda


From: Mr. Jaehoon Paul Jeong 
[mailto:[email protected]<mailto:[email protected]>]
Sent: Thursday, July 06, 2017 7:54 AM
To: Linda Dunbar <[email protected]<mailto:[email protected]>>; 
Adrian Farrel <[email protected]<mailto:[email protected]>>
Cc: [email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Subject: Request for Timeslots in I2NSF WG Meeting

Hi Linda and Adrian,
I would like to ask the timeslots for our 7 drafts as follows:

draft-hares-i2nsf-capability-data-model-03
- Presenter: Sue Hares
- Time: 10 min

draft-kim-i2nsf-nsf-facing-interface-data-model-02
- Presenter: Jaehoon Paul Jeong
- Time: 10 min

draft-jeong-i2nsf-consumer-facing-interface-dm-02
- Presenter: Jaehoon Paul Jeong
- Time: 10 min

draft-jeong-i2nsf-applicability-00
- Presenter: Jaehoon Paul Jeong
- Time: 15 min

draft-hyun-i2nsf-nsf-triggered-steering-03
- Presenter: Sangwon Hyun
- Time: 10 min

draft-hyun-i2nsf-registration-interface-im-02
draft-hyun-i2nsf-registration-interface-dm-01
- Presenter: Sangwon Hyun
- Time: 10 min

Thanks.

Best Regards,
Paul
--
===========================
Mr. Jaehoon (Paul) Jeong, Ph.D.
Assistant Professor
Department of Software
Sungkyunkwan University
Office: +82-31-299-4957<tel:+82%2031-299-4957>
Email: [email protected]<mailto:[email protected]>, 
[email protected]<mailto:[email protected]>
Personal Homepage: 
http://iotlab.skku.edu/people-jaehoon-jeong.php<http://cpslab.skku.edu/people-jaehoon-jeong.php>

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--
===========================
Mr. Jaehoon (Paul) Jeong, Ph.D.
Assistant Professor
Department of Software
Sungkyunkwan University
Office: +82-31-299-4957<tel:+82%2031-299-4957>
Email: [email protected]<mailto:[email protected]>, 
[email protected]<mailto:[email protected]>
Personal Homepage: 
http://iotlab.skku.edu/people-jaehoon-jeong.php<http://cpslab.skku.edu/people-jaehoon-jeong.php>



--
===========================
Mr. Jaehoon (Paul) Jeong, Ph.D.
Assistant Professor
Department of Software
Sungkyunkwan University
Office: +82-31-299-4957<tel:+82%2031-299-4957>
Email: [email protected]<mailto:[email protected]>, 
[email protected]<mailto:[email protected]>
Personal Homepage: 
http://iotlab.skku.edu/people-jaehoon-jeong.php<http://cpslab.skku.edu/people-jaehoon-jeong.php>

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

e-mail: [email protected]
Tel:    +34 913 129 041
Mobile: +34 682 051 091
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