Re: [Rtg-yang-coord] naive question ??

Tom,

On 2015-02-05 20:27, Thomas D. Nadeau wrote:
>
>> On Feb 5, 2015:5:51 AM, at 5:51 AM, Loa Andersson <loa@pi.nu> wrote:
>>
>> Folks,
>>
>> I have what might be a naive question.
>>
>> People have told me that in Yang we want to separate functionality from
>> technology, i.e. we will look at OAM, management, routing, signaling
>> and traffic engineering as aggregate functions and build our tree based
>> on that.
>>
>> Now if we are to model thing that are closely related e.g. MPLS OAM,
>> signaling, routing and traffic engineering, does that mean that we have
>> to work at separate pieces of the yang tree and repeat this for every
>> piece of the technology?
>
> 	I think you can do a model dedicated to MPLS OAM.  The analogy is
> pretty much similar to how MIBs are created. You can import bits or
> objects from all over the place to create things, or you can recreate them
> in place.   There is a trade-off about modularity versus time-to-completion
> here and I very much am not in favor of being zealous one way or the other.
>
> 	We also need to very much take an iterative process around these models:
> they are not set in stone, and we should iterate on them to modify, adapt
> and update them as necessary.  With that in mind, we've been encouraging people to
> just starting writing them as best as possible and implementing either prototype
> code or actually putting them into products so that we can see how they actually
> operate in the wild.

I thought there were activities going on to define an overall IETF yang
model, right? If we say we approach this in an iterative way would the
overall yang-model be the outcome of that process, rather than an input
to it. Or do I miss something?

/Loa
>
> 	--Tom
>
>
>> First, is this correctly understood or do I have to go back and discuss
>> this again with the people proposing it?
>>
>> If it is correct why is it superior to what we did for SNMP, one MIB-module for each protocol?
>>
>> Are the decisions taken or is the jury still out?
>>
>> /Loa
>> --
>>
>>
>> Loa Andersson                        email: loa@mail01.huawei.com
>> Senior MPLS Expert                          loa@pi.nu
>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>
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>>
>

-- 

Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64