Hello Andy,
I also propose an extension. (see my mail Review of 
draft-ma-netmod-immutable-flag-00)
In Ericsson we saw no need for exceptions, but do see the need for applying it 
to descendant nodes. Typically we need to protect a full subtree.

Why do you need the exceptions? Could you provide some use-case examples ?
Regards Balazs

From: netmod <[email protected]> On Behalf Of Andy Bierman
Sent: Wednesday, 23 March, 2022 21:10
To: NetMod WG <[email protected]>
Subject: [netmod] Alternative approach to draft-ma-netmod-immutable-flag-00

Hi,

IMO the problem should be viewed as a refinement to the
access control policy of the device.  A standard mechanism
such as a YANG extension would be better than a growing
mix of proprietary solutions.

We have such a YANG extension called "user-write" that is widely deployed.
A simple boolean is not fine enough granularity, so a bits type is
needed instead to allow control of create, update, and delete access operations.


https://www.yumaworks.com/pub/latest/yangauto/yumapro-yangauto-guide.html#ncx-user-write<https://protect2.fireeye.com/v1/url?k=31323334-501d5122-313273af-454445555731-876c03f0bc610d95&q=1&e=c875257e-41f5-45d6-a9e9-871e5ebb4243&u=https%3A%2F%2Fwww.yumaworks.com%2Fpub%2Flatest%2Fyangauto%2Fyumapro-yangauto-guide.html%23ncx-user-write>


Andy

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