Network Working Group J. Parello
Internet-Draft B. Claise
Intended Status: Standards Track Mouli Chandramouli
Expires: October 19, 2013 Cisco Systems, Inc.
April 19, 2013
Energy Object Context MIB
draft-ietf-eman-energy-aware-mib-08
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Copyright Notice
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Abstract
This document defines a subset of a Management Information Base
(MIB) for energy management of devices. The module addresses
device identification, context information, and the
relationships between reporting devices, remote devices, and
monitoring devices.
Conventions used in this document
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 RFC 2119 [RFC2119].
Table of Contents
1. Introduction............................................ 3
1.1. Energy Management Document Overview.................3
2. The Internet-Standard Management Framework.............. 4
3. Requirements and Use Cases.............................. 4
4. Terminology............................................. 4
5. Architecture Concepts Applied to the MIB Module......... 6
5.1 Energy Object Identification.........................9
5.2 Energy Object Context...............................10
5.3 Links to Other Identifiers..........................11
5.4 Child: Energy Object Relationships..................11
5.5 Parent: Energy Object Relationships.................13
5.6 Energy Object Identity Persistence..................13
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6. MIB Definitions........................................ 13
7. Security Considerations................................ 30
8. IANA Considerations.................................... 30
9. Acknowledgement........................................ 31
10. Open Issue............................................ 31
11. References............................................ 31
a. Normative References..............................31
b. Informative References............................32
1. Introduction
The EMAN standards provide a specification for Energy
Management. This document defines a subset of a Management
Information Base (MIB) for use with network management protocols
for Energy monitoring of network devices and devices attached to
the network and possibly extending to devices in the industrial
automation setting with a network interface.
The focus of the MIB module specified in this document is on the
identification of Energy Objects and reporting the context and
relationships of Energy Objects as defined in [EMAN-FMWK]. The
module addresses Energy Object Identification, Energy Object
Context, and Energy Object Relationships.
1.1. Energy Management Document Overview
This document specifies the ENERGY-OBJECT-CONTEXT-MIB module.
This document is based on the Energy Management Framework [EMAN-
FMWK] and meets the requirements on identification of Energy
Objects and their context and relationships as specified in the
Energy Management requirements [EMAN-REQ].
A second MIB module required by the [EMAN-FMWK], the Power and
Energy Monitoring MIB [EMAN-MON-MIB], monitors the Energy
Objects for Power States, for the Power and Energy consumption.
Power State monitoring includes: retrieving Power States, Power
State properties, current Power State, Power State transitions,
and Power State statistics. In addition, this MIB module
provides the Power Characteristics properties of the Power and
Energy, along with optional characteristics.
The applicability statement document [EMAN-AS] provides the list
of use cases, and describes the common aspects of between
existing Energy standards and the EMAN standard, and shows how
the EMAN framework relates to other frameworks.
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2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the
current Internet-Standard Management Framework, please refer to
section 7 of RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store,
termed the Management Information Base or MIB. MIB objects are
generally accessed through the Simple Network Management
Protocol (SNMP). Objects in the MIB are defined using the
mechanisms defined in the Structure of Management Information
(SMI). This memo specifies MIB modules that are compliant with
SMIv2, which is described in STD 58, RFC 2578 [RFC2578], STD 58,
RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580].
3. Requirements and Use Cases
Firstly, to illustrate the importance of energy monitoring in
networks and secondly to list some of the important areas to be
addressed by the energy management Framework, several use cases
and network scenarios are presented in the EMAN applicability
statement document [EMAN-AS]. In addition, for each scenario,
the target devices for energy management, and how those devices
powered and metered are also presented. To address the network
scenarios, requirements for power and energy monitoring for
networking devices are specified in [EMAN-REQ]. Based on the
requirements [EMAN-REQ], the [EMAN-FMWK] presents an solution
approach.
Accordingly, the scope of the MIB module in this document is in
accordance to the requirements specified in [EMAN-REQ] and
[EMAN-FMWK].
4. Terminology
Please refer to [EMAN-FMWK] for the definitions of the following
terminology used in this draft.
Device
Component
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Energy Management
Energy Management System (EnMS)
ISO Energy Management System
Energy
Power
Demand
Power Characteristics
Electrical Equipment
Non-Electrical Equipment (Mechanical Equipment)
Energy Object
Electrical Energy Object
Non-Electrical Energy Object
Energy Monitoring
Energy Control
Provide Energy:
Receive Energy:
Power Interface
Power Inlet
Power Outlet
Energy Management Domain
Energy Object Identification
Energy Object Context
Energy Object Relationship
Aggregation Relationship
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Metering Relationship
Power Source Relationship
Proxy Relationship
Energy Object Parent
Energy Object Child
Power State
Power State Set
Nameplate Power
5. Architecture Concepts Applied to the MIB Module
This section describes the basic concepts specified in the
Energy Management Architecture [EMAN-FMWK], with specific
information related to the MIB module specified in this
document.
The Energy Object Context MIB module defined in this document
defines MIB objects for identification of Energy Objects, and
reporting context and relationship of an Energy Object. The
managed objects are contained in two tables eoTable and
eoProxyTable.
The first table eoTable focuses on link to the other MIB
modules, context of the Energy Object. The second table
eoRelationTable specifies the relationships between Energy
Objects. This is a simplified representation of relationship
between Energy Objects. The third table eoProxyTable describes
the proxy capabilities of a Energy Object Parent for a specific
local Energy Object Child.
+- eoTable(2)
|
+- eoEntry(1) [entPhysicalIndex]
| |
| +-- r-n PethPsePortIndexOrZero eoEthPortIndex(1)
| +-- r-n PethPsePortGroupIndexOrZero eoEthPortGrpIndex(2)
| +-- r-n LldpPortNumberOrZero eoLldpPortNumber(3)
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| +-- rwn MacAddress eoMgmtMacAddress(4)
| +-- r-n InetAddressType eoMgmtAddressType(5)
| +-- r-n InetAddress eoMgmtAddress(6)
| +-- r-n SnmpAdminString eoMgmtDNSName(7)
| +-- rwn SnmpAdminString eoDomainName(8)
| +-- rwn SnmpAdminString eoRoleDescription(9)
| +-- rwn EnergyObjectKeywordList eoKeywords(10)
| +-- rwn Integer32 eoImportance(11)
| +-- r-n INTEGER eoPowerCategory(12)
| +-- rwn SnmpAdminString eoAlternateKey(13)
|
| +- eoRelationTable(2)
| |
| +- eoRelationEntry(1) [entPhysicalIndex,
eoRelationIndex]
| | |
| | +-- --n Integer32 eoRelationIndex(1)
| | +-- --n UUIDorZero eoRelationID(2)
| | +-- rwn EnergyRelations eoRelationship(3)
| +- eoProxyTable(3)
|
| +- eoProxyEntry(1) [entPhysicalIndex, eoProxyIndex ]
| |
| | +-- --n Integer32 eoProxyIndex(1)
| | +-- --n UUIDorZero eoProxyID(2)
| | +-- r-n BITS eoProxyAbilities(3)
The following UML diagram illustrates the relationship of the
MIB objects in the eoTable, eoRelationTable and eoProxyTable
that describe the identity, context and relationship of an
Energy Object.
+--------------------------+
| EO Context Information |
| ------------------------ |
| eoRoleDescription |
| eoKeywords |
| eoImportance |
| eoPowerCategory |
+--------------------------+
|
|
v
+------------------------------+
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|---> | EO Identification |
| |----------------------------- |
| | entPhysicalIndex (*) |
| | entPhysicalName (*) |
| | entPhysicalUUID (**) |
| | |
| | eoEthPortIndex (***) |
| | eoEthPortGrpIndex (***) |
| | eoLldpPortNumber (****) |
| | eoAlternateKey |
| | |
| | eoMgmtMacAddress (optional) |
| | eoMgmtAddressType (optional) |
| | eoMgmtAddress (optional) |
| | eoMgmtDNSName (optional) |
| | eoDomainName |
| +------------------------------+
|
| +------------------------------+
|---- | EO Relationship |
| | ---------------------------- |
| | eoRelationIndex |
| | eoRelationID |
| | eoRelationship |
| +------------------------------+
|
| +------------------------------+
|---- | EO Proxy Relationship |
| ---------------------------- |
| eoProxyIndex |
| eoProxyID |
| eoProxyAbilities |
+------------------------------+
(*) Compliance with the ENTITY MIB V3 [RFC4133]
(**) Compliance with the ENTITY MIB V4 [EMAN-ENTITY]
(***) Link with the Power over Ethernet MIB [RFC3621]
(****) Link with LLDP MIBs [LLDP-MIB] [LLDP-MED-MIB]
Figure 1: MIB Objects Grouping
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As displayed in figure 1, the MIB objects can be classified in
different logical grouping of MIB objects.
1) The Energy Object Identification. See Section 5.1 "Energy
Object Identification". Devices and their sub-components are
characterized by the power-related attributes of a physical
entity present in the ENTITY MIB [EMAN-ENTITY].
2) The Context Information. See Section 5.2 "Energy Object
Context"
3) The links to other MIB modules. See Section 5.3 "Links to
other Identifiers"
4) The Energy Object Child Relationships specific information.
See Section 5.4 "Child: Energy Objects Relationship."
5) The Energy Object Parent Relationships specific information.
See Section 5.5 "Parent: Energy Objects Relationship."
6) The Energy Object Identity Persistence. See Section 5.6
"Energy Object Identity Persistence"
5.1 Energy Object Identification
Refer to the "Energy Object Information" section in [EMAN-FMWK]
for background information about Energy Objects.
Every Energy Object MUST implement the unique index,
entPhysicalIndex, entPhysicalName and entPhysicalUUID from the
ENTITY MIB [EMAN-ENTITY]. Module Compliance of ENTITY-MIB with
respect to entity4CRCompliance should be supported which require
a limited number of objects supported (entPhysicalClass,
entPhysicalName, entPhysicalUUID). entPhysicalIndex is used as
index for the primary Energy Object information in the ENERGY-
OBJECT-CONTEXT-MIB module.
Every Energy Object MUST have a printable name assigned to it.
Energy Objects MUST implement the entPhysicalName object
specified in the ENTITY-MIB, which must contain the Energy
Object name.
For the ENERGY-OBJECT-CONTEXT-MIB compliance, every Energy
Object instance MUST implement the entPhysicalUUID from the
ENTITY MIB [EMAN-ENTITY].
As displayed in [RFC4122], the following is an example of the
string representation of a UUID as a URN: urn:uuid:f81d4fae-
7dec-11d0-a765-00a0c91e6bf6.
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For example, to understand the relationship between Energy
Object Components and Energy Objects, the ENTITY-MIB physical
containment tree [EMAN-ENTITY] MUST be implemented.
A second example deals with one of the ENTITY-MIB extensions: if
the Energy Object temperature is required, the managed objects
from the ENTITY-SENSOR-MIB [RFC3433] should be supported.
When an Energy Object Parent acts as a Power Aggregator or a
Power Proxy, the Energy Object Parent and its Energy Object
Child/Children MUST be members of the same Energy Management
Domain, specified by the eoDomainName MIB Object.
Each Energy Object MUST belong to a single Energy Management
Domain or in other words, an Energy Object cannot belong to more
than one Energy Management Domain. Refer to the "Energy
Management Domain" section in [EMAN-FMWK] for background
information. The eoDomainName, which is an element of the
eoTable, is a read-write MIB object. The Energy Management
Domain should map 1-1 with a metered or sub-metered portion of
the network. The Energy Management Domain MUST be configured on
the Energy Object Parent. The Energy Object Children MAY inherit
the some of the domain parameters (possibly domain name, some of
the context information such as role or keywords, importance)
from the Energy Object Parent or the Energy Management Domain
MAY be configured directly in an Energy Object Child.
5.2 Energy Object Context
Refer to the "Energy Object Context" section in [EMAN-FMWK] for
background information.
An Energy Object must provide a value for eoImportance in the
range of 1...100 to help differentiate the use or relative value
of the device. The importance range is from 1 (least important)
to 100 (most important). The default importance value is 1.
An Energy Object can provide a set of eoKeywords. These keywords
are a list of tags that can be used for grouping and summary
reporting within or between Energy Management Domains.
An Energy Object can be classified based on the physical
properties of the Energy Object. That Energy Object can be
classified as consuming power or supplying power to other
devices or that Energy Object can perform both of those
functions and finally, an Energy Object can be a passive meter.
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Additionally, an Energy Object can provide an eoRoleDescription
string that indicates the purpose the Energy Object serves in
the network.
5.3 Links to Other Identifiers
While the entPhysicalIndex is the primary index for all MIB
objects in the ENERGY-OBJECT-CONTEXT-MIB module, the Energy
Management Systems (EnMS) must be able to make the link with the
identifier(s) in other supported MIB modules.
If the Energy Object is a PoE port, and if the Power over
Ethernet MIB [RFC3621] is supported by the Energy Object SNMP
agent, then the Energy Object eoethPortIndex and
eoethPortGrpIndex MUST contain the values of pethPsePortIndex
and pethPsePortGroupIndex [RFC3621].
The Energy Object eoLldpPortNumber MUST contain the
lldpLocPortNum from the LLDP MIB [LLDP-MIB], if the LLDP-MED
MIB is supported on the Energy Object SNMP agent.
The intent behind the links to the other MIB module
identifier(s) is to correlate the instances in the different MIB
modules. This will allow the ENERGY-OBJECT-CONTEXT-MIB MIB
module to reference other MIB modules in cases where the Power
over Ethernet and the LLDP MIB modules are supported by the SNMP
agent. Some use cases may not implement any of these two MIB
modules for the Energy Objects. However, in situation where any
of these two MIB modules are implemented, the EnMS must be able
to correlate the instances in the different MIB modules.
The eoAlternateKey alternate key object specifies a manufacturer
defined string that can be used to identify the Energy Object.
Since EnMS may need to correlate objects across management
systems, this alternate key is provided to facilitate such a
link. This optional value is intended as a foreign key or
alternate identifier for a manufacturer or EnMS to use to
correlate the unique Energy Object Id in other systems or
namespaces. If an alternate key is not available or is not
applicable then the value is the zero-length string.
5.4 Child: Energy Object Relationships
Refer to the "Energy Object Parent and Child" section in [EMAN-
FMWK] for the definition and background information.
In order to link the Energy Object Child and the Energy Object
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Parent, a separate table (eoRelationTable) has been introduced
in this MIB module. The following relationships between Energy
objects have been considered in the eoRelationTable.
Metering Relationship -> meteredBy, metering
Power Source Relationship -> poweredBy, powering
Aggregation Relationship -> aggregatedBy, aggregating
Proxy Relationship -> proxyBy, proxying
Each Energy object can have one or more Energy Object
relationships with other Energy Objects. Depending on the
direction of the relationship, an Energy Object can be
considered as an Energy Object Parent or an Energy Object Child.
The relationship between the Energy Objects is specified with an
arbitrary index and the UUID of the remote Energy Object. The
UUID MUST comply to the RFC 4122 specifications. It is
important to note that it is possible that an Energy Object may
not have an Energy Object relationship with other Energy
Objects.
Proxy is a special relationship, and the Energy Object can
designate another Energy Object that can have the proxy
capabilities such as energy reporting, power state
configurations, non physical wake capabilities (such as Wake-on-
LAN)), or any combination of capabilities.
The eoProxyAbilities object is specific to the Proxy
Relationship. This object describes the capabilities of the
Energy Object Parent for the Energy Object Child represented by
the entPhysicalIndex. The possible capabilities are: report,
configuration, and/or wakeonlan. This object only applies to an
Energy Object Child.
Since the communication between the Energy Object Parent and
Energy Object Child may not be SNMP and is left to the choice of
the device manufacturer (as defined in EMAN-FMWK), an Energy
Object Child can have additional MIB objects that can be used
for easier identification by the EnMS. The optional objects
eoMgmtMacAddress, eoMgmtAddressType eoMgmtDNSName can be used to
help identify the relationship between the child and other NMS
objects. These objects can be used as an alternate key to help
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link the Energy Object with other keyed information that may be
stored within the EnMS(s).
5.5 Parent: Energy Object Relationships
When the Energy Object is an Energy Object Parent, the
relationship table specifies the relationships to every Energy
Object children. The explicit relationship between the Energy
Object parent and each Energy Object child can be powering,
metering, proxying and aggregating.
5.6 Energy Object Identity Persistence
In some situations, the Energy Object identity information
should be persistent even after a device reload. For example,
in a static setup where a switch monitors a series of connected
PoE phones, there is a clear benefit for the EnMS if the Energy
Object Identification and all associated information persist, as
it saves a network discovery. However, in other situations,
such as a wireless access point monitoring the mobile user PCs,
there is not much advantage to persist the Energy Object
Information. The identity information of an Energy Object
should be persisted and there is value in the writable MIB
objects persisted.
6. MIB Definitions
-- ************************************************************
--
--
-- This MIB is used for describing the identity and the
-- context information of Energy Objects in network
--
--
-- *************************************************************
ENERGY-OBJECT-CONTEXT-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
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mib-2,
Integer32
FROM SNMPv2-SMI
TEXTUAL-CONVENTION, MacAddress, TruthValue
FROM SNMPv2-TC
MODULE-COMPLIANCE,
OBJECT-GROUP
FROM SNMPv2-CONF
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB
InetAddressType, InetAddress
FROM INET-ADDRESS-MIB
entPhysicalIndex
FROM ENTITY-MIB
UUIDorZero
FROM UUID-TC-MIB;
energyAwareMIB MODULE-IDENTITY
LAST-UPDATED "201210190000Z"
ORGANIZATION "IETF EMAN Working Group"
CONTACT-INFO
"WG Charter:
http://datatracker.ietf.org/wg/eman/charter/
Mailing Lists:
General Discussion: eman@ietf.org
To Subscribe: https://www.ietf.org/mailman/listinfo/eman
Archive: http://www.ietf.org/mail-archive/web/eman
Editors:
John Parello
Cisco Systems, Inc.
3550 Cisco Way
San Jose, California 95134
US
Phone: +1 408 525 2339
Email: jparello@cisco.com
Benoit Claise
Cisco Systems, Inc.
De Kleetlaan 6a b1
Degem 1831
Belgium
Phone: +32 2 704 5622
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Email: bclaise@cisco.com
Mouli Chandramouli
Cisco Systems, Inc.
Sarjapur Outer Ring Road
Bangalore 560103
IN
Phone: +91 80 4429 2409
Email: moulchan@cisco.com"
DESCRIPTION
"This MIB is used for describing the identity and the
context information of Energy Objects"
REVISION
"201210190000Z"
DESCRIPTION
"Initial version, published as RFC XXXX."
::= { mib-2 xxxxx }
energyAwareMIBNotifs OBJECT IDENTIFIER
::= { energyAwareMIB 0 }
energyAwareMIBObjects OBJECT IDENTIFIER
::= { energyAwareMIB 2 }
energyAwareMIBConform OBJECT IDENTIFIER
::= { energyAwareMIB 3 }
-- Textual Conventions
PethPsePortIndexOrZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention is an extension of the
pethPsePortIndex convention, which defines a greater than
zero value used to identify a power Ethernet PSE port.
This extension permits the additional value of zero. The
semantics of the value zero are object-specific and must,
therefore, be defined as part of the description of any
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object that uses this syntax. Examples of the usage of
this extension are situations where none or all physical
entities need to be referenced."
SYNTAX Integer32 (0..2147483647)
PethPsePortGroupIndexOrZero::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention is an extension of the
pethPsePortGroupIndex convention from the Power Over
Ethernet MIB [RFC3621], which defines a greater than zero
value used to identify group containing the port to which
a power Ethernet PSE is connected. This extension
permits the additional value of zero. The semantics of
the value zero are object-specific and must, therefore,
be defined as part of the description of any object that
uses this syntax. Examples of the usage of this
extension are situations where none or all physical
entities need to be referenced."
SYNTAX Integer32 (0..2147483647)
LldpPortNumberOrZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"This textual convention is an extension of the
LldpPortNumber convention specified in the LLDP MIB,
which defines a greater than zero value used to uniquely
identify each port contained in the chassis (that is
known to the LLDP agent) by a port number. This
extension permits the additional value of zero. The
semantics of the value zero are object-specific and must,
therefore, be defined as part of the description of any
object that uses this syntax. Examples of the usage of
this extension are situations where none or all physical
entities need to be referenced."
SYNTAX Integer32(0..4096)
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EnergyObjectKeywordList ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A list of keywords that can be used to group Energy
Objects for reporting or searching. If multiple keywords
are present, then this string will contain all the
keywords separated by the ',' character. All alphanumeric
characters and symbols (other than a comma), such as #,
(, $, !, and &, are allowed. White spaces before and
after the commas are ignored, as well as within a keyword
itself.
For example, if an Energy Object were to be tagged with
the keyword values 'hospitality' and 'guest', then the
keyword list will be 'hospitality,guest'."
SYNTAX OCTET STRING (SIZE (0..2048))
EnergyRelations ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This object specifies relationship between Energy
Objects. For example, poweredby relationship indicates,
Energy Object A is powered by Energy Object B. From the
point of view of Energy Object B, it is powering Energy
Object A. "
SYNTAX BITS {
none (0), --
poweredby(1), -- power relationship
powering(2),
meteredby(3), -- meter relationship
metering(4),
proxyby(5), -- proxy relatioship
proxying(6),
aggregatedby(7), -- aggregation relationship
aggregating(8)
}
-- Objects
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eoTable OBJECT-TYPE
SYNTAX SEQUENCE OF EoEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table lists Energy Objects."
::= { energyAwareMIBObjects 2 }
eoEntry OBJECT-TYPE
SYNTAX EoEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describes the attributes of an Energy Object.
Whenever a new Energy Object is added or an existing
Energy Object is deleted, a row in the eoTable is added
or deleted."
INDEX {entPhysicalIndex }
::= { eoTable 1 }
EoEntry ::= SEQUENCE {
eoEthPortIndex PethPsePortIndexOrZero,
eoEthPortGrpIndex PethPsePortGroupIndexOrZero,
eoLldpPortNumber LldpPortNumberOrZero,
eoMgmtMacAddress MacAddress,
eoMgmtAddressType InetAddressType,
eoMgmtAddress InetAddress,
eoMgmtDNSName SnmpAdminString,
eoDomainName SnmpAdminString,
eoRoleDescription SnmpAdminString,
eoKeywords EnergyObjectKeywordList,
eoImportance Integer32,
eoPowerCategory INTEGER,
eoAlternateKey SnmpAdminString
}
eoEthPortIndex OBJECT-TYPE
SYNTAX PethPsePortIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This variable uniquely identifies the power Ethernet
port to which the attached device is connected [RFC3621].
In addition, PoE MIB should be instantiated on the
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device. If such a power Ethernet port cannot be specified
or is not known then the object is zero."
::= { eoEntry 1 }
eoEthPortGrpIndex OBJECT-TYPE
SYNTAX PethPsePortGroupIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This variable uniquely identifies the group containing
the port to which a power Ethernet PSE is connected
[RFC3621]. In addition, PoE MIB should be instantiated on
the device. If such a group cannot be specified or is not
known then the object is zero."
::= { eoEntry 2 }
eoLldpPortNumber OBJECT-TYPE
SYNTAX LldpPortNumberOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This variable uniquely identifies the port component
(contained in the local chassis with the LLDP agent) as
defined by the lldpLocPortNum in the [LLDP-MIB] and
[LLDP-MED-MIB]. In addition, LLDP MIB should be
instantiated on the device If such a port number cannot
be specified or is not known then the object is zero."
::= { eoEntry 3 }
eoMgmtMacAddress OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies a MAC address of the Energy
Object. This object typically only applies to Energy
Object Children. This object can be used as an alternate
key to help link the Energy Object with other keyed
information that may be stored within the EnMS(s). The
eoMgmtMacAddress MIB object SHOULD be implemented for
Energy Object Children, and MAY be implemented for Energy
Object Parents."
::= { eoEntry 4 }
eoMgmtAddressType OBJECT-TYPE
SYNTAX InetAddressType
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the eoMgmtAddress type, i.e. an
IPv4 address or an IPv6 address. This object MUST be
populated when eoMgmtAddress is populated. The
eoMgmtAddressType MIB object SHOULD be implemented for
Energy Object Children, and MAY be implemented for Energy
Object Parents."
::= { eoEntry 5 }
eoMgmtAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the management address as an IPv4
address or IPv6 address of Energy Object. The IP address
type, i.e. IPv4 or IPv6, is determined by the
eoMgmtAddressType value. This object can be used as an
alternate key to help link the Energy Object with other
keyed information that may be stored within the EnMS(s).
The eoMgmtAddress MIB object SHOULD be implemented for
Energy Object Children, and MAY be implemented for Energy
Object Parents."
::= { eoEntry 6 }
eoMgmtDNSName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the DNS name of the eoMgmtAddress.
This object can be used as an alternate key to help link
the Energy Object with other keyed information that may
be stored within the EnMS(s). The eoMgmtDNSName MIB
objects SHOULD be implemented for Energy Object Children,
and MAY be implemented for Energy Object Parents."
::= { eoEntry 7 }
eoDomainName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
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"This object specifies the name of an Energy Management
Domain for the Energy Object. This object specifies a
zero-length string value if no Energy Management Domain
name is configured. The value of eoDomainName must remain
constant at least from one re-initialization of the
entity local management system to the next re-
initialization."
::= { eoEntry 8 }
eoRoleDescription OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies an administratively assigned name
to indicate the purpose an Energy Object serves in the
network.
For example, we can have a phone deployed to a lobby with
eoRoleDescription as 'Lobby phone'.
This object specifies the value is the zero-length string
value if no role description is configured.
The value of eoRoleDescription must remain constant at
least from one re-initialization of the entity local
management system to the next re-initialization. "
::= { eoEntry 9 }
eoKeywords OBJECT-TYPE
SYNTAX EnergyObjectKeywordList
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies a list of keywords that can be
used to group Energy Objects for reporting or searching.
The value is the zero-length string if no keywords have
been configured. If multiple keywords are present, then
this string will contain all the keywords separated by
the ',' character. For example, if an Energy Object were
to be tagged with the keyword values 'hospitality' and
'guest', then the keyword list will be
'hospitality,guest'.
If write access is implemented and a value is written
into the instance, the agent must retain the supplied
value in the eoKeywords instance associated with
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the same physical entity for as long as that entity
remains instantiated. This includes instantiations
across all re-initializations/reboots of the local
management agent. "
::= { eoEntry 10 }
eoImportance OBJECT-TYPE
SYNTAX Integer32 (1..100)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies a ranking of how important the
Energy Object is (on a scale of 1 to 100) compared with
other Energy Objects in the same Energy Management
Domain. The ranking should provide a business or
operational context for the Energy Object as compared to
other similar Energy Objects. This ranking could be used
as input for policy-based network management.
Although network managers must establish their own
ranking, the following is a broad recommendation:
90 to 100 Emergency response
80 to 90 Executive or business critical
70 to 79 General or Average
60 to 69 Staff or support
40 to 59 Public or guest
1 to 39 Decorative or hospitality
The value of eoImportance must remain constant at least
from one re-initialization of the entity local
management system to the next re-initialization. "
DEFVAL { 1 }
::= { eoEntry 11 }
eoPowerCategory OBJECT-TYPE
SYNTAX INTEGER {
consumer(0),
producer(1),
consumerproducer(2),
meter(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object describes the Energy Object category, which
indicates the expected behavior or physical property of
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the Energy Object, based on its design. An Energy Object
can be a consumer(0), producer(1), or consumerproducer
(2) or meter (3).
There are devices with a dual mode - consuming energy and
producing of energy and those are identified as
consumerproducer.
In some cases, a meter is required to measure the power
consumption. In such a case, this meter Energy Object
category is meter(3). "
::= { eoEntry 12 }
eoAlternateKey OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies a manufacturer defined string that
can be used to identify the Energy Object. Since Energy
Management Systems (EnMS) and Network Management Systems
(NMS) may need to correlate objects across management
systems, this alternate key is provided to provide such a
link. This optional value is intended as a foreign key or
alternate identifier for a manufacturer or EnMS/NMS to
use to correlate the unique Energy Object Id in other
systems or namespaces. If an alternate key is not
available or is not applicable then the value is the
zero-length string.
The value of eoAlternateKey must remain constant at
least from one re-initialization of the entity local
management system to the next re-initialization. "
::= { eoEntry 13 }
eoRelationTable OBJECT-TYPE
SYNTAX SEQUENCE OF EoRelationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table describes the relationships between Energy Objects."
::= { energyAwareMIBObjects 3 }
eoRelationEntry OBJECT-TYPE
SYNTAX EoRelationEntry
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
"An entry in this table describes the relationship between
Energy objects."
INDEX { entPhysicalIndex, eoRelationIndex }
::= { eoRelationTable 1 }
EoRelationEntry ::= SEQUENCE {
eoRelationIndex Integer32,
eoRelationID UUIDorZero,
eoRelationship EnergyRelations
}
eoRelationIndex OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary index to identify the Energy Object
related to another Energy Object"
::= { eoRelationEntry 1 }
eoRelationID OBJECT-TYPE
SYNTAX UUIDorZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the Universally Unique Identifier (UUID)
of the peer (other) Energy Object. The UUID must comply the
specifications of UUID in UUID-TC-MIB.
If UUID of the energy object is unknown or non-existent
the eoRelationID will be set to a zero-length string
instead."
REFERENCE
"RFC 4133bis, Entity MIB-v4, February 2013"
::= { eoRelationEntry 2 }
eoRelationship OBJECT-TYPE
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SYNTAX EnergyRelations
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object describes the relations between Energy objects. For
each Energy object, the relations between the other Energy
objects are specified using the bitmap. If the Energy Object is
a Parent and has no other relations, none(0) is specified."
::= { eoRelationEntry 3 }
eoProxyTable OBJECT-TYPE
SYNTAX SEQUENCE OF EoProxyEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table describes the proxy capabilities of a Energy
Object Parent for a specific local Energy Object Child. "
::= { energyAwareMIBObjects 4 }
eoProxyEntry OBJECT-TYPE
SYNTAX EoProxyEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describes the attributes of an Energy Object.
Whenever a new Energy Object is added or deleted, a row
in the eoProxyTable is added or deleted."
INDEX { entPhysicalIndex, eoProxyIndex }
::= { eoProxyTable 1 }
EoProxyEntry ::= SEQUENCE {
eoProxyIndex Integer32,
eoProxyID UUIDorZero,
eoProxyAbilities BITS
}
eoProxyIndex OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an arbitrary index for an Energy Object."
::= { eoProxyEntry 1 }
eoProxyID OBJECT-TYPE
SYNTAX UUIDorZero
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object describes the Universally Unique Identifier
(UUID) of the Energy Object Parent.
The UUID must comply the specifications of UUID
in UUID-TC-MIB. If UUID of the energy object is
unknown or non-existent, the eoProxyID will be
set to a zero-length string instead."
REFERENCE
"RFC 4133bis, Entity MIB-v4, February 2013"
::= { eoProxyEntry 2 }
eoProxyAbilities OBJECT-TYPE
SYNTAX BITS {
none(0),
report(1),
configuration(2),
wakeonlan(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object describes the proxy capabilities of the
Energy Object Parent for the local Energy Object Child
specified in the EoRelationTable. none (0) is be used
when the Energy Object Parent does not have any proxy
abilities regarding the Energy Object Child. report(1)
indicates that the Energy Object Parent reports the usage
for the Energy Object Child.
configuration(2) indicates that the Energy Object Parent
can configure the Power Level for the Energy Object
Child.
wakeonlan(3) indicates that the Energy Object Parent can
wake up the Energy Object Child (the mechanism is
unspecified)."
::= { eoProxyEntry 3 }
-- Conformance
energyAwareMIBCompliances OBJECT IDENTIFIER
::= { energyAwareMIBObjects 5 }
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energyAwareMIBGroups OBJECT IDENTIFIER
::= { energyAwareMIBObjects 6 }
energyAwareMIBFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"When this MIB is implemented with support for
read-write, then such an implementation can
claim full compliance. Such devices can then
be both monitored and configured with this MIB."
MODULE -- this module
MANDATORY-GROUPS {
energyAwareMIBTableGroup,
energyAwareRelationTableGroup
}
GROUP energyAwareOptionalMIBTableGroup
DESCRIPTION
"A compliant implementation does not have to
implement. Module Compliance of ENTITY-MIB
with respect to entity4CRCompliance should
be supported. "
GROUP energyAwareProxyTableGroup
DESCRIPTION "A compliant MIB implementation does
not have to implement. Module Compliance of
ENTITY-MIB with respect to entity4CRCompliance
should be supported. "
::= { energyAwareMIBCompliances 1 }
energyAwareMIBReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"When this MIB is implemented without support for
read-write (i.e. in read-only mode), then such an
implementation can claim read-only compliance.
Such a device can then be monitored but cannot be
Configured with this MIB.
Module Compliance of ENTITY-MIB with respect to
entity4CRCompliance should be supported."
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MODULE -- this module
MANDATORY-GROUPS {
energyAwareMIBTableGroup,
energyAwareRelationTableGroup
}
GROUP energyAwareOptionalMIBTableGroup
DESCRIPTION
"A compliant implementation does not have to implement
the managed objects in this GROUP.
Module Compliance of ENTITY-MIB
with respect to entity4CRCompliance should
be supported. "
::= { energyAwareMIBCompliances 2 }
-- Units of Conformance
energyAwareMIBTableGroup OBJECT-GROUP
OBJECTS {
eoDomainName,
eoRoleDescription,
eoAlternateKey,
eoKeywords,
eoImportance,
eoPowerCategory
}
STATUS current
DESCRIPTION
"This group contains the collection of all the objects
related to the EnergyObject.
Module Compliance of ENTITY-MIB
with respect to entity4CRCompliance should
be supported. "
::= { energyAwareMIBGroups 1 }
energyAwareOptionalMIBTableGroup OBJECT-GROUP
OBJECTS {
eoEthPortIndex,
eoEthPortGrpIndex,
eoLldpPortNumber,
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eoMgmtMacAddress,
eoMgmtAddressType,
eoMgmtAddress,
eoMgmtDNSName
}
STATUS current
DESCRIPTION
"This group contains the collection of all the objects
related to the Energy Object."
::= { energyAwareMIBGroups 2 }
energyAwareRelationTableGroup OBJECT-GROUP
OBJECTS {
-- Note that object eoRelationIndex is not
-- included since it is not-accessible
eoRelationID,
eoRelationship
}
STATUS current
DESCRIPTION
"This group contains the collection of all objects
specifying the relationship between Energy Objects."
::= { energyAwareMIBGroups 3 }
energyAwareProxyTableGroup OBJECT-GROUP
OBJECTS {
-- Note that object eoProxyIndex is not
-- included since it is not-accessible
eoProxyID,
eoProxyAbilities
}
STATUS current
DESCRIPTION
"This group contains the collection of all objects
specifying the Proxy relationship."
::= { energyAwareMIBGroups 4 }
END
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7. Security Considerations
Some of the readable objects in these MIB modules (i.e., objects
with a MAX-ACCESS other than not-accessible) may be considered
sensitive or vulnerable in some network environments. It is
thus important to control even GET and/or NOTIFY access to these
objects and possibly to even encrypt the values of these objects
when sending them over the network via SNMP.
There are a number of management objects defined in these MIB
modules with a MAX-ACCESS clause of read-write and/or read-
create. Such objects MAY be considered sensitive or vulnerable
in some network environments. The support for SET operations in
a non-secure environment without proper protection can have a
negative effect on network operations. The following are the
tables and objects and their sensitivity/vulnerability:
. Unauthorized changes to the eoDomainName, entPhysicalName,
eoRoleDescription, eoKeywords, and/or eoImportance MAY
disrupt power and energy collection, and therefore any
predefined policies defined in the network.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example, by using
IPsec), there is still no secure control over who on the secure
network is allowed to access and GET/SET
(read/change/create/delete) the objects in these MIB modules.
It is RECOMMENDED that implementers consider the security
features as provided by the SNMPv3 framework (see [RFC3410],
section 8), including full support for the SNMPv3 cryptographic
mechanisms (for authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to
an instance of these MIB modules is properly configured to give
access to the objects only to those principals (users) that have
legitimate rights to GET or SET (change/create/delete) them.
8. IANA Considerations
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER values recorded in the SMI Numbers registry:
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Descriptor OBJECT IDENTIFIER value
---------- -----------------------
energyAwareMIB { mib-2 xxx }
Additions to this MIB module are subject to Expert Review
[RFC5226], i.e., review by one of a group of experts designated
by an IETF Area Director. The group of experts MUST check the
requested MIB objects for completeness and accuracy of the
description. Requests for MIB objects that duplicate the
functionality of existing objects SHOULD be declined. The
smallest available OID SHOULD be assigned to a new MIB objects.
The specification of new MIB objects SHOULD follow the structure
specified in Section 6 and MUST be published using a well-
established and persistent publication medium.
9. Acknowledgement
We would like to thank Juergen Quittek and Juergen Schoenwalder
for their suggestions on the new design of eoRelationTable which
was a proposed solution for the open issue on the representation
of Energy Object children as a UUIDlist.
Many thanks to Juergen Quittek for many comments on the wording,
text and design of the MIB thus resulting in an improved draft.
In addition the authors thank Bill Mielke for his multiple
reviews, Brad Schoening and Juergen Schoenwaelder for their
suggestions and Michael Brown for dramatically improving this
draft.
10. Open Issue
energyAwareOptionalMIBTableGroup split in two groups; since some
objects are easy to implement and some objects may not be.
11. References
a. Normative References
[RFC2119] S. Bradner, Key words for use in RFCs to Indicate
Requirement Levels, BCP 14, RFC 2119, March 1997.
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[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578, April
1999.
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2",
STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.
[RFC3621] Berger, A., and D. Romascanu, "Power Ethernet MIB",
RFC3621, December 2003.
[RFC4122] Leach, P., Mealling, M., and R. Salz, "A Universally
Unique IDentifier (UUID) URN Namespace ", RFC 4122,
July 2005.
[RFC4133] Bierman, A. and K. McCloghrie, "Entity MIB (Version
3)", RFC 4133, August 2005.
[LLDP-MIB] IEEE 802.1AB-2005, "Management Information Base
module for LLDP configuration, statistics, local system
data and remote systems data components", May 2005.
[LLDP-MED-MIB] ANSI/TIA-1057, "The LLDP Management Information
Base extension module for TIA-TR41.4 media endpoint
discovery information", July 2005.
[EMAN-MON-MIB] M. Chandramouli, Schoening, B., Quittek, J.,
Dietz, T., and B. Claise "Power and Energy Monitoring
MIB", draft-ietf-eman-energy-monitoring-mib-04, October
2012.
[EMAN-ENTITY] A. Bierman, D. Romascanu, J. Quittek and M.
Chandramouli "Entity MIB (Version 4)", draft-ietf-
eman-rfc4133bis-06, February 2013.
b. Informative References
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[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet
Standard Management Framework", RFC 3410, December
2002.
[RFC3433] Bierman, A., Romascanu, D., and K.C. Norseth, "Entity
Sensor Management Information Base", RFC 3433, December
2002.
[RFC5226] Narten, T. Alverstrand, H., A. and K. McCloghrie,
"Guidelines for Writing an IANA Considerations Section
in RFCs ", BCP 26, RFC 5226, May 2008.
[EMAN-REQ] Quittek, J., Winter, R., Dietz, T., Claise, B., and
M. Chandramouli, "Requirements for Energy Management",
draft-ietf-eman-requirements-12, work in progress,
February 2013.
[EMAN-FMWK] Claise, B., Parello, J., Schoening, B., and J.
Quittek, "Energy Management Framework", draft-ietf-
eman-framework-07, work in progress, February 2013.
[EMAN-AS] Schoening, B., Chandramouli, M, and B. Nordman,
"Energy Management (EMAN) Applicability Statement",
draft-ietf-eman-applicability-statement-03.txt, work in
progress, April 2013.
[EMAN-TERMINOLOGY] J. Parello, "Energy Management Terminology",
draft-parello-eman-definitions-07, work in progress,
October 2012.
Authors' Addresses
Benoit Claise
Cisco Systems, Inc.
De Kleetlaan 6a b1
Diegem 1813
BE
Phone: +32 2 704 5622
Email: bclaise@cisco.com
John Parello
Cisco Systems, Inc.
3550 Cisco Way
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San Jose, California 95134
US
Phone: +1 408 525 2339
Email: jparello@cisco.com
Mouli Chandramouli
Cisco Systems, Inc.
Sarjapur Outer Ring Road
Bangalore 560103
IN
Phone: +91 80 4429 2409
Email: moulchan@cisco.com
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