Liaison statement
Liaison out to IETF GREEN working group

1. Overall description:
ETSI EE would like to acknowledge receipt of the liaison 2003, and the
information on the new IETF Working Group "Getting Ready for Energy-Efficient
Networking (GREEN)" and the related work planning.

Regarding the title of your working group, namely "Getting Ready for
Energy-Efficient Networking", ETSI EE assumes that "Networking" refers to
"network". If this is correct, ETSI EE would appreciate further clarification
on the specific types of networks that IETF GREEN intends to address.

Having that said, from the provided work planning ETSI EE can see that we have
several common topics and interests. Therefore, ETSI EE would be happy to
exchange information and potentially collaborate with IETF GREEN WG on related
topics. ETSI EE has developed, and is continuing to develop, several standards
related to the energy efficiency assessment and optimization in
telecommunication equipment and networks. Some of these are developed in
collaboration with ITU-T Study Group 5 creating technically aligned standards.

At this stage, ETSI EE believes that the following standards, focused on
terminology, metrics, assessment methodologies, and monitoring could be of
interest for IETF GREEN: •       ETSI ES 203 475: “Standardization terms and
trends in energy efficiency” •       ETSI EN 301 575: ”Measurement method for
energy consumption of Customer Premises Equipment (CPE)” •       ETSI EN 303
215: ”Measurement methods and limits for power consumption in broadband
telecommunication networks equipment” •       ETSI ES 202 706-1: “Metrics and
measurement method for energy efficiency of wireless access network equipment;
Part 1: Power consumption - static measurement method” •       ETSI TS 103 786:
“Measurement method for energy efficiency of wireless access network equipment;
Dynamic energy efficiency measurement method of 5G Base Station (BS)” •      
ETSI ES 203 228: “Assessment of mobile network energy efficiency” (currently
under revision) •       ETSI ES 203 682: “Green Abstraction Layer (GAL); Power
management capabilities of the future energy telecommunication fixed network
nodes; Enhanced Interface for power management in Network Functions
Virtualisation (NFV) environments” •       ETSI  ES 202 336-1: “Monitoring and
Control Interface for Infrastructure Equipment (Power, Cooling and Building
Environment Systems used in Telecommunication Networks) – Part 1: Generic
Interface” •       ETSI ES 202 336-12: “Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used
in Telecommunication Networks) – Part 12: ICT equipment power, energy and
environmental parameters monitoring information model” (new revision to be
published) •       ETSI ES 204 086: “Assessment of Fixed Network Energy
Efficiency” (under development)

ETSI EE looks forward to information exchange and potential collaboration with
IETF GREEN WG on these matters and kindly asks to be kept informed of future
developments.

2. Actions:
Please take the above information into consideration and keep ETSI EE updated
of your work progress.

3. Date of next meetings of the originator:
ETSI TC EE #68          TBD, November 2025              Sophia Antipolis, France