Energy Management

Document Charter Energy Management WG (eman)
Title Energy Management
Last updated 2010-09-28
State Approved
WG State Concluded
IESG Responsible AD Joel Jaeggli
Charter Edit AD (None)
Send notices to (None)


Energy management is becoming an additional requirement for network
  management systems due to several factors including the rising and
  fluctuating energy costs, the increased awareness of the ecological
  impact of operating networks and devices, and the regulation of
  governments on energy consumption and production.
  The basic objective of energy management is operating communication
  networks and other equipments with a minimal amount of energy while
  still providing sufficient performance to meet service level objectives.
  A discussion of detailed requirements has already started in the OPSAWG,
  but further exploration in the EMAN WG is needed.
  Today, most networking and network-attached devices neither monitor nor
  allow control energy usage as they are mainly instrumented for functions
  such as fault, configuration, accounting, performance, and security
  management. These devices are not instrumented to be aware of energy
  consumption. There are very few means specified in IETF documents for
  energy management, which includes the areas of power monitoring, energy
  monitoring, and power state control.
  The OPSAWG started working on a MIB module for monitoring energy
  consumption and power states of energy-aware devices and found that more
  than just a MIB module was needed to manage energy in networks. Rather a
  new framework for energy management needs to be developed first.
  A particular difference between energy management and other management
  tasks is that in some cases energy consumption of a device is not
  measured at the device itself but reported by a different place. For
  example, at a Power over Ethernet (PoE) sourcing device or at a smart
  power strip, in which cases one device is effectively metering another
  remote device. This requires a clear definition of the relationship
  between the reporting devices and identification of remote devices for
  which monitoring information is provided. Similar considerations will
  apply to power state control of remote devices, for example, at a PoE
  sourcing device that switches on and off power at its ports. Another
  example scenario for energy management is a gateway to low resourced and
  lossy network devices in wireless a building network. Here the energy
  management system talks directly to the gateway but not necessarily to
  other devices in the building network.
  The WG will investigate existing standards such as those from the IEC,
  ANSI, DMTF and others, and reuse existing work as much as possible.
  The EMAN WG will work on the management of energy-aware devices, Covered
  by the following items:
  1. Requirements for energy management.
  The EMAN WG will develop a requirements document that will specify
  energy management properties that will allow networks and devices to
  become energy aware. In addition to energy awareness requirements, the
  need for control functions will be discussed. Specifically the need to
  monitor and control properties of devices that are remote to the
  reporting device should be discussed.
  2. Energy management framework.
  The EMAN WG will create a framework document that will describe
  extensions to current management framework, required for energy
  management. This includes: power and energy monitoring, power states,
  power state control, and potential power state transitions. The
  framework will focus on energy management for IP-based network equipment
  (routers, switches, PCs, IP cameras, phones and the like).
  Particularly, the relationships between reporting devices, remote
  devices, and monitoring probes (such as might be used in low-power and
  lossy networks) need to be elaborated. For the case of a device
  reporting on behalf of other devices and controlling those devices, the
  framework will address the issues of discovery and identification of
  remote devices.
  3. Energy-aware Networks and Devices MIB document The EMAN WG will
  develop a MIB module for monitoring energy-aware networks and devices.
  The module will address devices identification, context information, and
  potential relationship between reporting devices, remote devices, and
  monitoring probes.
  4. Power and Energy Monitoring MIB document The EMAN WG will develop a
  document defining managed objects for monitoring of power states and
  energy consumption/production. The monitoring of power states includes:
  retrieving power states, properties of power states, current power
  state, power state transitions, and power state statistics.
  The managed objects will provide means for reporting detailed properties
  of the actual energy rate (power) and of accumulated energy. Further, it
  will provide information on electrical power quality.
  5. Battery MIB document
  The EMAN WG will develop a document defining managed objects for battery
  monitoring, which will provide means for reporting detailed properties
  of the actual charge, age, and state of a battery and of battery
  6. Applicability statement
  The EMAN WG will develop an applicability statement, describing the
  variety of applications that can use the energy framework and associated
  MIB modules. Potential examples are building networks, home energy
  gateway, etc. Finally, the document will also discuss relationships of
  the framework to other architectures and frameworks (such as smartgrid).
  The applicability statement will explain the relationship between the
  work in this WG and the other existing standards such as those from the
  IEC, ANSI, DMTF, and others.