[i2rs] YANG validation and opstate

[Andy Bierman <[e-mail]>]

Hi,

I don't really agree with idea that I2RS agents pick which
YANG statements they will implement, but I think there is
a way to handle this correctly in the datastore framework.

The proposed enumeration for server validation
capabilities (e.g., full, XPath, leafref) is not really needed.
This enum is too course-grained to be useful.

IMO it is better to say the server MAY do YANG validation
on the ephemeral datastore.  Whether or not the server uses
data from the ephemeral datastore is left as an implementation detail.
The server could use invalid input parameters or ignore them
or reject them in the first place.

The client needs to check operational state to know if/when the
ephemeral data was applied to the system.



Andy