You mention calculation in the draft, but I didn’t see this reflected in the data model. Note that I’m not sure the data model needs to address calculations per se. I think you could spell those out outside of YANG, with respect to the data objects. I just expected to see some specifics or examples of using the modeled data to reflect a composite energy efficiency metric.
[Marisol] Calculations will be part of what we consider part of the POWEFF-derived module We need more discussions, and feedback from the group on it Our next steps are considering linking into the draft-lindblad-tlm-philatelist proposal. This module should contribute to the data produced by the aggregation/processor, where we might need to consume from pointers and metadata, like ietf-interfaces model. [JMC] Ah, okay. Some of those things didn’t seem like calculations so much as specs or real-time measurements. That said, energy-traffic-ratio fits the calculation definition and seems useful. On the data model, I’m a bit confused why the network interface module is needed. In your text about this you say that it might line up exactly to standardized modules, but it’s needed for those things that are not network devices. What devices are not network devices that have network interfaces and don’t fit into the general, say, ietf-interfaces model? [Marisol] Our thought it is more in the direction on how to add into “useful work” and which attributes/“sensors” might be part of it. As part of the asset definition, we are not only looking into network devices, but we also consider servers, as part of compute, they also have defined interfaces, and it might be where YANG ietf-interface model doesn’t fit well. But we agree that pointers should address different types of assets. [JMC] Such as? What compute interfaces wouldn’t fit with what you’re currently modeling in the interfaces? As chair, I’d love to see how this factors into the green networking metrics work that has been presented at opsawg before. Some of the text touches on similar topics. Perhaps POWEFF can be seen to take a practical approach to some of the concepts and thoughts in draft-cx-opsawg-green-metrics? [Marisol] We have scheduled a Side Meeting on Monday morning, and it will be great to review with the green-metrics authors, how we should move forward Side meeting: Monday Nov 6, 8:45 - 9:30 Karlin 4 Sustainability Insights. Description: Gaps on Power Metrics Normalization [JMC] Excellent. Joe Many thanks, Marisol Joe From: OPSAWG <opsawg-boun...@ietf.org> on behalf of Marisol Palmero Amador (mpalmero) <mpalmero=40cisco....@dmarc.ietf.org> Date: Friday, October 27, 2023 at 13:07 To: opsawg@ietf.org <opsawg@ietf.org> Cc: Gonzalo Salgueiro (gsalguei) <gsalg...@cisco.com>, Jan Lindblad (jlindbla) <jlind...@cisco.com>, Snezana Mitrovic (snmitrov) <snmit...@cisco.com>, emile.step...@orange.com <emile.step...@orange.com>, Per Andersson (perander) <peran...@cisco.com>, Esther Roure Vila (erourevi) <erour...@cisco.com>, emile.step...@orange.com <emile.step...@orange.com> Subject: [OPSAWG] FW: New Version Notification for draft-opsawg-poweff-00.txt Dear OPSA WG, Earlier this week, we posted a new draft that introduces a data model for power and energy related metrics : https://datatracker.ietf.org/doc/draft-opsawg-poweff/ The focus is mainly on runtime information provided by power sensors, but also an extension to other related metrics and given attributes that will complement the representation of the energy consumed by the network device, implemented in hardware or software, as well as by specific network components. This is a first-version approach where we see still challenges based on implementation. Note: Some of those challenges are covered on Jan`s draft: draft-lindblad-tlm-philatelist<https://datatracker.ietf.org/doc/draft-lindblad-tlm-philatelist/> Along with POWEFF draft, we’ve also updated the version of the Sustainability Insights draft: https://datatracker.ietf.org/doc/draft-almprs-sustainability-insights/ where we introduced an updated architecture reference diagram, that provides a more structured view of the functional blocks that might be part of where those attributes and metrics might be produced, processed, visualized, etc. We also have reviewed and added Use Cases that such framework could drive. We greatly appreciate your thoughts and comments. Many thanks, Marisol Palmero From: internet-dra...@ietf.org <internet-dra...@ietf.org> Date: Friday, 20 October 2023 at 17:45 To: Gonzalo Salgueiro (gsalguei) <gsalg...@cisco.com>, Jan Lindblad (jlindbla) <jlind...@cisco.com>, Marisol Palmero Amador (mpalmero) <mpalm...@cisco.com>, Snezana Mitrovic (snmitrov) <snmit...@cisco.com> Subject: New Version Notification for draft-opsawg-poweff-00.txt A new version of Internet-Draft draft-opsawg-poweff-00.txt has been successfully submitted by Marisol Palmero and posted to the IETF repository. Name: draft-opsawg-poweff Revision: 00 Title: Power and Energy Efficiency Date: 2023-10-20 Group: Individual Submission Pages: 37 URL: https://www.ietf.org/archive/id/draft-opsawg-poweff-00.txt Status: https://datatracker.ietf.org/doc/draft-opsawg-poweff/ HTMLized: https://datatracker.ietf.org/doc/html/draft-opsawg-poweff Abstract: This document motivates and specifies a data model to report power and energy efficiency of an asset. As highlighted during the IAB workshop on environmental impacts (https://datatracker.ietf.org/doc/html/draft-iab-ws-environmental- impacts-report-00), visibility is a very important first step (paraphrasing Peter Drucker's mantra of "You cannot improve what you don't measure"). During the workshop the need for standardized metrics was established, to avoid proprietary, double counting and even contradictory metrics across vendors. This Power and Energy Efficiency Telemetry Specification (POWEFF) is required to promote consistency across vendors and consumers, based on: 1. The definition of datasets and attributes defining a common data model utilized by the standard calculation to yield power and energy efficiency value for any asset or network element. 2. The standard calculations utilizing the specified datasets and attributes which will yield energy consumption and energy efficiency value for any asset or network element. The model provides information and data requirements for calculating the Power and Energy Efficiency for specific assets. Assets can include hardware (physical or virtual), software, applications, or services. The IETF Secretariat
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