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Re: Blog: YANG Really Takes Off in the Industry

2014-12-01 21:07:11

On Dec 1, 2014, at 9:59 PM, Ted Lemon <Ted(_dot_)Lemon(_at_)nominum(_dot_)com>
 wrote:

On Dec 1, 2014, at 8:54 PM, Dean Bogdanovic <deanb(_at_)juniper(_dot_)net> 
wrote:
this is one part I don't understand. Why adding another language would make 
them less agile?

If the yang model isn't a good representation of what is being modeled, it 
can cause more harm than good.   

This is not the answer to my question. I asked about adding support for another 
language, not how the models are architected. Vendors can (and, in my personal 
opinion, will) provide proprietary and standard data models. The operator can 
choose then which model they want to use for their purposes.


Same problem exists with MIBs.   When different implementations of the same 
thing use different base assumptions, it can be difficult to come up with a 
management model that is congruent with all of the different base assumptions 
and is still useful.   I wouldn't say it's impossible, but it's a good bet 
that a poorly thought out model or a model that is based on experience with a 
single implementation will fail in this regard.