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Re: [netmod] Inventory YANG model (entity-MIB)

"Dongjie (Jimmy)" <jie.dong@huawei.com> Fri, 13 March 2015 01:18 UTC

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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
Thread-Topic: [netmod] Inventory YANG model (entity-MIB)
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Date: Fri, 13 Mar 2015 01:18:37 +0000
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Cc: "i2rs-chairs@tools.ietf.org" <i2rs-chairs@tools.ietf.org>, "draft-dong-i2rs-network-inventory@tools.ietf.org" <draft-dong-i2rs-network-inventory@tools.ietf.org>, NETMOD Working Group <netmod@ietf.org>
Subject: Re: [netmod] Inventory YANG model (entity-MIB)
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Hi Juergen, 

> -----Original Message-----
> From: Juergen Schoenwaelder [mailto:j.schoenwaelder@jacobs-university.de]
> Sent: Wednesday, March 11, 2015 6:22 PM
> To: Dongjie (Jimmy)
> Cc: Benoit Claise; Thomas D. Nadeau;
> draft-dong-i2rs-network-inventory@tools.ietf.org; i2rs-chairs@tools.ietf.org;
> NETMOD Working Group
> Subject: Re: [netmod] Inventory YANG model (entity-MIB)
> 
> On Wed, Mar 11, 2015 at 09:43:21AM +0000, Dongjie (Jimmy) wrote:
> 
> > As described in the -00 version of draft-dong-inventory, the "generic features
> and capabilities" means the networking functions and services that the network
> nodes and components can provide, e.g. IP unicast, multicast, ethernet bridging,
> mpls, traffic-engineering, etc. The set of the functions will be completed in
> future revision. Our intention is to abstract those control plane independent
> functions in this model, and let the protocol specific models to cover the details
> of each protocol.
> 
> I think this is not how we organize work in the IETF. If a device supports
> ethernet briding (for example), it will announce an ethernet bridging data model
> that is extending the generic interface data model with ethernet bridging
> specific configuration and state objects. This has already been done for IP and it
> follows the way the IETF previously organized MIB modules. This is also largely
> how routing data models that are currently written are organized (a core
> routing data model plus routing protocol specific extensions).

Agree that for each network protocol or function, specific model is needed for the detailed states and configurations of that technology. 

What the inventory model intends to cover is a summary of the capability set that the networks nodes and components can support. Such summary information may be helpful to the upper layers.

Best regards,
Jie

> 
> /js
> 
> --
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

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