[netmod] mount-point in anydata

[Martin Bjorklund <[e-mail]>]

Hi,

Currently, the schema mount draft says that the "mount-point"
extension only can be defined in an "anydata" node.  However, this
doesn't really work, since RFC 7950 says:

   An anydata node is treated as an opaque chunk of data.  This data
   can be modified in its entirety only.

But the idea with schema mount is to build a composite model that can
be manipulated just like a normal model, or a model that is
augmented.  If we mount models in an "anydata" node, clients would
have to replace the enitire mounted subtree in order to change e.g. a
single leaf.

For this reason, I propose that we go back to the previous model where
"mount-point" would be allowed in "container" and "list".  Note that a
client that doesn't know anything about these mounts would see some
nodes in some unknown namespace; just like in the case that there is
an augment that the client doesn't know about.


/martin