[Detnet] A few suggested updates to draft-ietf-detnet-architecture-11

"Andrew G. Malis" <agmalis@gmail.com> Tue, 05 March 2019 17:38 UTC

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From: "Andrew G. Malis" <agmalis@gmail.com>
Date: Tue, 05 Mar 2019 12:37:48 -0500
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To: detnet WG <detnet@ietf.org>
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Subject: [Detnet] A few suggested updates to draft-ietf-detnet-architecture-11
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This morning we had a DetNet data plane design team call to work on the
MPLS and IP data plane drafts in preparation for Prague. We had a
discussion of terminology in the drafts that led us back to the terminology
definitions in the Architecture draft.

As a result, we have a few suggested terminology improvements:

In section 2.1:

Replace these old definitions:

   App-flow
           The native format of a DetNet flow.


   DetNet flow
           A DetNet flow is a sequence of packets from one source to one
           or more destinations, which conform uniquely to a flow
           identifier, and to which the DetNet service is to be
           provided.


with these:

App-Flow

         The payload (data) carried over a DetNet service.


  DetNet flow

           A DetNet flow is a sequence of packets

           which conform uniquely to a flow

           identifier, and to which the DetNet service is to be

           provided. It includes any DetNet headers added to support

           the DetNet service and forwarding sub-layers.


These new definitions provide more clarity to the difference between the
terms.


We also had two other minor changes to suggest.


In section 4.2.1, remove the first sentence:


   The native data flow between the source/destination end systems is
   referred to as application-flow (App-flow).


This is redundant to the definition in section 2.1.


In section 4.3.1, change:


   o  App-flow: native format of the data carried over a DetNet flow.
      It does not contain any DetNet related attributes.


to:


   o  App-flow: the payload carried over a DetNet flow.

       It does not contain any DetNet related attributes.


This is consistent with the definition in section 2.1.


Thanks,

Andy