Liaison statement
LS response to IETF on "Quality of Outcome (QoO)"

We thank IETF IPPM for the liaison regarding “Quality of Outcome (QoO)”
introduced in IETF draft-ietf-ippm-qoo. Noting that this informational draft
builds upon BBF work on Quality Attenuation, we particularly appreciate the
request to review the draft prior to the IETF Last Call.

From our review, the Broadband Forum (BBF) would like to provide the following
observations on draft-ietf-ippm-qoo-04: 1. The reference to BBF TR-452.1 is
correct and appropriate. 2. The use of the term Quality Attenuation (QA) in the
draft is consistent with BBF’s definition. 3. Whilst the BBF defined the term
‘outcome' more generically as 'something that can be observed to start at some
point in time and may be observed to complete at some later time', we also use
the more specific term 'application outcome’ which aligns well to the use of
the term ‘quality of outcome’ in this draft. 4. We applaud the requirement for
composable metrics stated in this draft as this is also recognised as a
critical requirement by our members. 5. Overall, we see that this work builds
appropriately on our work, and we find no contradictions with our published or
in-progress work on Quality Attenuation.

We take this opportunity to bring your attention to our related published works
which are available here
(https://www.broadband-forum.org/technical-library/?number=452):
   TR-452.4: QED Measurement Formats
   TR-452.2: Quality Attenuation Measurements using Active Test Protocols
   TR-452.5: TR-452.5 Quality Attenuation Measurements Using L2 PM OAM
   TR-452.7: Quality Attenuation Measurements Using L2 and L3 Active Protocols
   in Multicast Environments

BBF acknowledges and appreciates the work of IETF IPPM on this draft. We look
forward to continued constructive cooperation between our organizations.

Sincerely,
Lincoln Lavoie,
Broadband Forum Technical Committee Chair

CC:
Liaisons at BBF <liaisons@broadband-forum.org>
Lincoln Lavoie, Broadband Forum Technical Committee Chair <lylavoie@iol.unh.edu>
Craig Thomas, Broadband Forum Managing Director <cthomas@broadband-forum.org>
Karina Rocha-Gabbard, Broadband Forum Member Support Manager
<krocha@broadband-forum.org> Jonathan Newton, Broadband Forum Network
Architecture Working Area Director <jonathan.newton@vodafone.com> Christele
Bouchat, Broadband Forum Network Architecture Working Area Director
<christele.bouchat@nokia.com> IETF Liaison Coordinator <bbf-liaison@ietf.org>
IETF Liaison Secretary <statements@ietf.org>

Broadband Forum Reference: LIAISE-731
In Response to Incoming Liaison: LIAISE-724
Date of Upcoming Broadband Forum Meetings: See
https://www.broadband-forum.org/events/?category=upcoming-member-meetings
Attachments: None