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Status of This Memo

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This Internet-Draft will expire on 5 March 2026.¶

Copyright Notice

Copyright (c) 2025 IETF Trust and the persons identified as the document authors. All rights reserved.¶

This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License.¶

Table of Contents

1. Introduction

2. EMAN

• [RFC7603]¶

• [RFC7577]¶

• [RFC7460]¶

• [RFC7461]¶

• [RFC7326]¶

• [RFC6988]¶

• [RFC6933]¶

3. NMRG

[I-D.irtf-nmrg-green-ps]:

Reducing humankind's environmental footprint and making technology more sustainable are among the biggest challenges of our age. Networks play an important part in this challenge. On one hand, they enable applications that help to reduce this footprint. On the other hand, they contribute to this footprint themselves in no insignificant way. Methods to make networking technology itself "greener" and to manage and operate networks in ways that reduces their environmental footprint without impacting their utility therefore need to be explored. This document outlines a corresponding set of opportunities, along with associated research challenges, for networking technology in general and management technology in particular to become "greener", i.e., more sustainable, with reduced greenhouse gas emissions and less negative impact on the environment.¶

4. OPSAWG

[I-D.opsawg-poweff]:

The Power and Energy Efficiency Telemetry Specification seeks to address this inconsistency by providing a single reference for these important activities, aiming to create value through insights.¶

5. MISC

[RFC8352]:

This document describes the challenges for energy-efficient protocol operation on constrained devices and the current practices used to overcome those challenges. It summarizes the main link-layer techniques used for energy-efficient networking, and it highlights the impact of such techniques on the upper-layer protocols so that they can together achieve an energy-efficient behavior. The document also provides an overview of energy-efficient mechanisms available at each layer of the IETF protocol suite specified for constrained-node networks.¶

[I-D.cx-green-metrics]:

This document explains the need for network instrumentation that allows to assess the power consumption, energy efficiency, and carbon footprint associated with a network, its equipment, and the services that are provided over it. It also suggests a set of related metrics that, when provided visibility into, can help to optimize a network's energy efficiency and "greenness".¶

[I-D.li-ivy-power]:

Network sustainability is a key issue facing the industry. Networks consume significant amounts of power at a time when the cost of power is rising and sensitivity about sustainability is very high. As an industry, we need to find ways to optimize the power efficiency of our networks both at a micro and macro level. We have observed that traffic levels fluctuate and when traffic ebbs there is much more capacity than is needed. Powering off portions of network elements could save a significant amount of power, but to scale and be practical, this must be automated. This document proposes a YANG model.¶

[I-D.pignataro-eimpact-icmp]:

This document defines a data structure that can be appended to selected ICMP messages. The ICMP extension defined herein can be used to gain visibility on environmental impact information on the Internet by providing per-hop (i.e., per topological network node) power metrics and other current or future sustainability metrics. This will contribute to achieving an objective mentioned in the IAB E-Impact workshop.¶

The techniques presented are useful not only in a transactional setting (e.g., a user-issued traceroute or a ping request), but also in a scheduled automated setting where they may be run periodically in a mesh across an administrative domain to map out environmental- impact metrics.¶

[I-D.gudumasu-avtcore-decoder-energy-reduction]:

This document describes an RTCP feedback message format for the second type of green metadata defined by the ISO/IEC International Standard 23001-11, known as Energy Efficient Media Consumption (Green metadata), developed by the ISO/IEC JTC 1/SC 29/WG 3 MPEG System. The RTCP feedback messages specified in this specification is compatible and complimentary with the other draft on green metadata and enables receivers to provide feedback to the senders for decoder power reduction and thus allows feedback-based energy efficient mechanisms to be implemented. The feedback message has broad applicability in real-time video communication services.¶

[I-D.ramos-schc-zero-energy-devices]:

This document describes the use of SCHC for very constraint devices. The use of SCHC will bring connectivity to devices with restrained use of battery and long delays.¶

[I-D.petra-path-energy-api]:

This document describes an API to query a network regarding its Energy Traffic Ratio for a given path.¶

[I-D.cprjgf-bmwg-powerbench]:

This document defines a mechanism to measure, report, and compare power usage of different networking devices and under different network configurations and conditions.¶

[I-D.cparsk-eimpact-sustainability-considerations]:

This document defines a set of sustainability-related terms to be used while describing and evaluating environmental impacts of Internet technologies. It also describes several of the design tradeoffs for trying to optimize for sustainability along with the other common networking metrics such as performance and availability.¶

6. Conventions and Definitions

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here.¶

7. Security Considerations

TODO Security¶

8. IANA Considerations

This document has no IANA actions.¶

9. References

Acknowledgments

TODO acknowledge.¶

Author's Address