Juergen Schoenwaelder <[email protected]> wrote: > On Fri, Apr 06, 2018 at 10:51:48AM +0200, Ladislav Lhotka wrote: > > Juergen Schoenwaelder <[email protected]> writes: > > > > > If we would have a mechanism to deviate an identityref to a subset of > > > identity values supported by an implementation, we would have solved a > > > more generic problem. Yes, the IANA list could be 'nicer' but it will > > > never be 'nice'. > > > > Three mechanisms can be used for this: > > > > - splitting the identities into separate modules > > Whatever module organization you come up with, it won't work for all > implementations. > > > - using features > > Making every identity a feature will turn the feature system upside > down. This is similar to making every leaf a feature. > > > - using deviations (even though vendors frown on them) > > If my implementation only supports A and B and C, then a deviation may > state exactly that and the problem is solved. Hoping that my specific > combination of A and B and C matches a set of modules or some set of > features is in my view an illusion. > > Vendors not shipping proper deviations are essentially telling their > customers that they have not yet understood model driven management. > We need to change the mindset here instead of polluting our data > models with hundreds or thousands of fine grained 'features'.
One problem is that you can't "deviate-away" support for an identity. /martin _______________________________________________ netmod mailing list [email protected] https://www.ietf.org/mailman/listinfo/netmod
