INTERNATIONAL TELECOMMUNICATION UNION
FOCUS GROUP ON FUTURE
NETWORKS
TELECOMMUNICATION
STANDARDIZATION SECTOR
FG-FN OD-19
Original: English
STUDY PERIOD 2009-2012
2nd FG-FN meeting:
Salt Lake City, USA, 16-20 November 2009
OUTPUT DOCUMENT 19
Source:
Editor
Title:
Draft Deliverable on “Overview of Energy Saving Network”
For:
This is an initial text of Draft Deliverable on “Overview of Energy Saving Network” based on
contribution [C25] and discussions of 16-20 November 2009 2nd FG-FN meeting.
Contact:
Toshihiko Kurita
Fujitsu Ltd.
Japan
Tel:
+81 447542765
Fax:
+81 447542741
Email: kuri[at]labs.fujitsu.com
-2FG-FN OD-19
Overview of Energy Saving Network
Summary
This document describes the overview of energy saving network for Future Networks.
Table of Contents
1. Scope
2. References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this document
4. Abbreviations and acronyms
5. Conventions
6. Introduction to Energy Saving Network
7. Technology review
8. Service requirements
9. Capability requirements
10. Functional requirements
-3FG-FN OD-19
Overview of Energy Saving Network
1
Scope
This document includes:
 Technology review of Energy Saving Network
 Service requirements of Energy Saving Network
 Capability requirements of Energy Saving Network
 Functional requirements of Energy Saving Network
2
References
The following ITU-T Recommendations and other references contain provisions which, through
reference in this text, constitute provisions of this Recommendation. At the time of publication, the
editions indicated were valid. All Recommendations and other references are subject to revision;
users of this Recommendation are therefore encouraged to investigate the possibility of applying the
most recent edition of the Recommendations and other references listed below. A list of the
currently valid ITU-T Recommendations is published regularly. The reference to a document within
this Recommendation does not give it, as a stand-alone document, the status of a Recommendation.
[1] ITU-T Contribution FG-FN C-25 (2009)
[2] International Telecommunication Union, “ICT and Climate Change,” April 2008
3
Definitions
3.1
Terms defined elsewhere
TBD
3.2
Terms defined in this Recommendation
TBD
4
TBD
Abbreviations and acronyms
5
Conventions
TBD
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6
Introduction to Energy Saving Network
Ways of resolving global warming issues that include reduction of carbon dioxide emissions are
becoming increasingly important. While the use of network is considered a prospective means to
reduce CO2 emissions in the fields of telework and supply chain management (SCM), it will
increase the volume of traffic flowing into networks accordingly. The total volume of traffic of
broadband subscribers in Japan as of 2025 is estimated to increase by 190 times that of 2006, which
will cause estimated network power consumption in 2025 is predicted to be 13 times the 2006 level.
So energy-saving technologies that reduce network power consumption is becoming increasingly
important. .
7
Technology review
TBD
8
Service requirements
TBD
9
Capability requirements
To control the power consumption, the following capabilities are considered necessary:
1) Restraint of increasing capacity needs of networks
1-1) Reduce the volume of traffic to be forwarded
1-2) Peak-shift the traffic as much as possible
2) Improvement of power consumption efficiency of the entire network
1-1) Minimize device usage for traffic dynamics
1-2) Forward the traffic with less power
10
Functional Requirements
Management Functions
Device Control
Minimize
Energy Costs
Status Monitoring
Network Devices
- Routing paths
- Function usage
etc.
(Routers, Switches, etc.)
- Traffic
- Availability
etc.