Re: A state model....

> >     a) The document does not specify why the IF state model
> >        should be replaced (or augmented) with another model.
> 
> IF state model does not provide the flexibility in defining the states.
> When ifOperStatus is down, we do not why it is down. For example
> in IPv6, the DAD may fail, there is no way to specify this in the state
> info.
 
On the contrary, the IF state model provides plenty of flexibility.
Each different type of media has its own failure conditions which
are specified in media-specific extensions.  So, if you want to define
IPv6-specific failures, then you need to define an IPv6-specific
extension.

Keith.