[Detnet] Robert Wilton's No Objection on draft-ietf-detnet-oam-framework-10: (with COMMENT)

[Robert Wilton via Datatracker <[e-mail]>]

Robert Wilton has entered the following ballot position for
draft-ietf-detnet-oam-framework-10: No Objection

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COMMENT:
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Hi,

Thanks for this document, I found it easy to read and understand.

I only have some minor comments that may help improve the document:

Minor level comments:

(1) p 6, sec 3.1.  Information Collection

   Information about the state of the network can be collected using
   several mechanisms.  Some protocols, e.g., Simple Network Management
   Protocol, send queries.  Others, e.g., YANG-based data models,
   generate notifications based on the publish-subscribe method.  In
   either way, information is collected and sent using the DetNet
   Controller Plane.

A few suggestions:
1. For SNMP, perhaps "polls for updated data" rather than "send queries".
2. YANG data models don't in themselves generate notifications, but only define
notifications that could be generated when particular events occur.  But
really, it is protocols, such as YANG Push, that are used to setup
subscriptions for the data defined in the YANG data models to be published
either on a periodic basis, or when the underlying data changes.

(2) p 10, sec 5.1.  Replication / Elimination

       Figure 1: Packet Replication: S transmits twice the same data
                         packet, to nodes A and B.

I wasn't really sure what this diagram was intending to convey (i.e., the text
only mentions S, A, and B and none of the other nodes in the diagram).  E.g.,
perhaps make is clearer that the desination is R rather than A or B?

(3) p 11, sec 6.  Requirements

   6.   OAM methods MAY combine in-band monitoring or measurement in the
        forward direction and out-of-bound notification in the reverse
        direction, i.e., towards the ingress MEP.

Given that this is "MAY" is doesn't appear to technically be an actual
requirement, since implementations are not required (or even recommended) to
support it.

(4) p 11, sec 6.  Requirements

   8.   DetNet OAM MAY support bi-directional OAM methods for bi-
        directional DetNet flows.  OAM test packets used for monitoring
        and measurements MUST be in-band in both directions.

Given that this is "MAY" is doesn't appear to technically be an actual
requirement, since implementations are not required (or even recommended) to
support it.

Nit level comments:

(5) p 10, sec 6.  Requirements

   2.   It MUST be possible to initiate a DetNet OAM session from using
        any of DetNet Controller Plane solution, e.g., centralized
        controller.

Perhaps "by using any of the DetNet Controller Plane solutions"?

Regards,
Rob