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Framework for Getting Ready for Energy-Efficient Networking(GREEN)
draft-wang-green-framework-00

Document Type Active Internet-Draft (individual)
Author Jing Wang
Last updated 2024-10-21
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draft-wang-green-framework-00
green                                                       J. Wang, Ed.
Internet-Draft                                              China Mobile
Intended status: Informational                           21 October 2024
Expires: 24 April 2025

   Framework for Getting Ready for Energy-Efficient Networking(GREEN)
                     draft-wang-green-framework-00

Abstract

   This document describes a framework for a framework for Getting Ready
   for Energy-Efficient Networking(GREEN).

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 24 April 2025.

Copyright Notice

   Copyright (c) 2024 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
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   provided without warranty as described in the Revised BSD License.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   2
   3.  Framework and Components  . . . . . . . . . . . . . . . . . .   3
   4.  GREEN Framework Workflow  . . . . . . . . . . . . . . . . . .   3
     4.1.  Distributed Model . . . . . . . . . . . . . . . . . . . .   3
     4.2.  Centralized Model . . . . . . . . . . . . . . . . . . . .   4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   7.  Informative References  . . . . . . . . . . . . . . . . . . .   5
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   Green has become a global topic.  The United Nations and the vast
   majority of governments agree that climate change and the need to
   curb greenhouse gas emissions are the major challenges of our time.
   Therefore, improving energy efficiency and reducing electricity
   consumption are becoming increasingly important for society and many
   industries.  The networking industry is no exception.  The IETF
   conducted a study on the energy costs of the IETF meeting three times
   a year.  The results showed that it was found that 99% of energy
   consumption came from air travel.

   Recently, the GREEN WG was formed.  It is chartered to explore use
   cases, derive requirements, and provide solutions for identifying and
   characterizing energy efficiency metrics, methods related to energy
   consumption of network devices, and optimizing energy efficiency
   across the network. network.  In addition, there are several papers
   that discuss green networks, and some work [I-D.cx-green-ps]
   summarizes the energy-saving possibilities that exist in the
   network.and [I-D.wang-cats-green-challenges] summarizes a number of
   challenges faced by cats considering green.  It has become a hot
   topic to carry out research on web technologies that consider green.

   This document describes a framework for Getting Ready for Energy-
   Efficient Networking(GREEN).

2.  Definition of Terms

   device  Aiming at comIncludes routers, switches, etc

   G-A  An agrent for GREEN, that can collect GREEN Metrics.

   Energy-Efficient Management  Energy-Efficient Management is a
     function used to administer a network, with the primary purpose of
     Energy-Efficient management.。

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3.  Framework and Components

   Figure 1 shows a framework of reference for GREEN that addresses the
   basic requirements raised during the BOF
   discussion[I-D.stephan-green-bof-reqs-collections].  Energy
   Efficiency Management Function is implemented inside the device or in
   a controller.

  +--------------------------------------------------------------------+
  |                     Energy-Efficient Management                    |
  +--------------------------------------------------------------------+
                            ^          |
                      Green |          | Control
                     Metrics|          |
                     +-----------+     |
                     |    G-A    |     |
                     +-----------+     |
                            |          |
                            |          v
  +--------------------------------------------------------------------+
  |                  (1) Device/Component Level                        |
  | +---------+  +-----------+  +----------------+  +----------------+ |
  | | (I)     |  | (II)      |  | (III)          |  | (IV)           | |
  | | Network |  | Device    |  | Legacy Network |  | 'Attached'(PoE | |
  | | Device  |  | Component |  | Device         |  | kind) Device   | |
  | |         |  |           |  |                |  |                | |
  | +---------+  +-----------+  +----------------+  +----------------+ |
  +--------------------------------------------------------------------+

                        Figure 1: GREEN Framework

4.  GREEN Framework Workflow

   Geared towards Getting Ready for Energy-Efficient Networking, the
   green metrics include the energy consumption of network devices and
   so on.  The following describes how green metrics are distributed
   under both distributed and centralized models.

4.1.  Distributed Model

   Figure 2 shows an example of green metric dessimination based on
   distributed model.  In this example, the green metrics of the device
   can be distributed in a distributed manner.  One of the G-A reports
   the aggregated green indicators to the Energy-Efficiency Management
   function component.

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                    :<---------------------:
                    :                      :
                    :               +---------------+    +----------+
                    :               |    G-A        |----| device 1 |
                    :               +---------------+    +----------+
                    :                      |
                    :                      |
                    :   Green              |
                    :   metrics            |
                    : :<---------   +---------------+
    +---------------------+         |    G-A        |    +----------+
    |  Energy-Efficient   |-------- |               |----| device 3 |
    |      Management     |         +---------------+    +----------+
    +---------------------+                |
                    :                      |
                    :                      |
                    :                      |
                    :               +---------------+    +----------+
                    :               |    G-A        |----| device 2 |
                    :               +---------------+    +----------+
                    :                      :
                    :<---------------------:

          Figure 2: An Example of Green Metric Dessimination in a
                             Distributed Model

4.2.  Centralized Model

   In Figure 3, green metrics can be distributed in a centralized way.
   In this example, the device's green metrics can be reported from G-A
   to the Energy-Efficiency Management function component in a
   centralized manner.

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                                         +----------------+    +----------+
                                      /  |    G-A         |----| device 1 |
                                    /    +----------------+    +----------+
                                  /                |
                                /                  |
                              /
                            /    Green
                          /      metrics
                        /    :<--------- +---------------+
 +---------------------+                 |    G-A        |    +----------+
 |  Energy-Efficient   |-----------------|               |----| device 3 |
 |      Management     |                 +---------------+    +----------+
 +---------------------+                           |
                       \                           |
                         \                         |
                            \                      |
                               \                   |
                                  \                |
                                     \             |
                                        +----------------+    +----------+
                                        |    G-A         |----| device 2 |
                                        +----------------+    +----------+

        Figure 3: An Example of Green Metric Distribution in a
                          Centralized Model

5.  Security Considerations

   TBD.

6.  IANA Considerations

   TBD.

7.  Informative References

   [I-D.cx-green-ps]
              Clemm, A., Westphal, C., Tantsura, J., Ciavaglia, L., and
              M. Odini, "Challenges and Opportunities in Management for
              Green Networking", Work in Progress, Internet-Draft,
              draft-cx-green-ps-02, 13 March 2023,
              <https://datatracker.ietf.org/doc/html/draft-cx-green-ps-
              02>.

   [I-D.wang-cats-green-challenges]
              Wang, J., Fu, Y., and C. Li, "Green Challenges in
              Computing-Aware Traffic Steering (CATS)", Work in
              Progress, Internet-Draft, draft-wang-cats-green-

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              challenges-04, 7 July 2024,
              <https://datatracker.ietf.org/doc/html/draft-wang-cats-
              green-challenges-04>.

   [I-D.stephan-green-bof-reqs-collections]
              Stephan, E. and M. Palmero, "Green BoF requirements
              collections", Work in Progress, Internet-Draft, draft-
              stephan-green-bof-reqs-collections-02, 3 September 2024,
              <https://datatracker.ietf.org/doc/html/draft-stephan-
              green-bof-reqs-collections-02>.

Author's Address

   Jing Wang (editor)
   China Mobile
   No.32 XuanWuMen West Street
   Beijing
   100053
   China
   Email: wangjingjc@chinamobile.com

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