Network Working Group J. Parello Internet-Draft B. Claise Intended Status: Standards Track Cisco Systems, Inc. Expires: April 16, 2011 October 16, 2010 Energy-aware Networks and Devices MIB draft-parello-eman-energy-aware-mib-00 Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. 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." 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Abstract This document defines a subset of the Management Information Base (MIB) for power and energy monitoring of devices. Conventions used in this document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [RFC2119]. Table of Contents 1. Introduction.............................................. 4 2. The Internet-Standard Management Framework................ 4 3. Use Cases................................................. 5 4. Terminology............................................... 5 5. Architecture Concepts Applied to the MIB Module........... 5 5.1 Power Monitor Information............................. 5 5.2 Power Monitor Meter Domain............................ 6 5.3 Power Monitor Parent and Child........................ 7 5.4 Power Monitor Context................................. 7 6. Structure of the MIB...................................... 7 7. MIB Definitions........................................... 8 8. Security Considerations.................................. 18 9. IANA Considerations...................................... 19 10. References.............................................. 19 Expires April 16, 2011 [Page 2] Internet-Draft Oct 2010 10.1. Normative References............................... 19 10.2. Informative References............................. 20 11. Acknowledgments......................................... 21 Expires April 16, 2011 [Page 3] Internet-Draft Oct 2010 TO DO . The roles/capabilities that the Power Monitor Parent have with Power Monitor Child(ren) are described in [POWER-MON- ARCH]: 1. Monitoring (only reporting) 2. Configuration power state 3. Configuration: power Example: on a PC, we can set power level without knowing the power. A solution must be specified in this draft. We have to find a way to model this role in this MIB module. Bitmap is just one example. 1. Introduction This document defines a subset of the Management Information Base (MIB) for use with network management protocols for power and energy monitoring of network devices and devices attached to the network, as specified in the Power Management Architecture [POWER-MON-ARCH], which in turn, is based on the Power Monitoring Requirements [POWER-MON-REQ] . This module's special focus is on monitoring energy-aware networks and devices. The module addresses device identification, context information, and potential relationships between reporting devices, remote devices, and monitoring probes. Devices and their sub-components may be characterized by the power-related attributes of a physical entity present in the ENTITY MIB, even though ENTITY MIB compliance is not a requirement due to the variety and broad base of devices concerned with energy management. 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 Expires April 16, 2011 [Page 4] Internet-Draft Oct 2010 (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. Use Cases Requirements for power and energy monitoring for networking devices are specified in [POWER-MON-REQ]. The requirements in [POWER-MON-REQ] cover devices typically found in communications networks, such as switches, routers, and various connected endpoints. For a power monitoring architecture to be useful, it should also apply to facility meters, power distribution units, gateway proxies for commercial building control, home automation devices, and devices that interface with the utility and/or smart grid. Accordingly, the scope of the MIB modules in this document is broader than that specified in [POWER-MON-REQ]. 4. Terminology The definitions of basic terms like Power Monitor, Power Monitor Parent, Power Monitor Child, Power Monitor Meter Domain, Power Level, and Manufacturer Power Level can be found in the Power Management Architecture [POWER-MON-ARCH]. 5. Architecture Concepts Applied to the MIB Module This section describes the basic concepts specified in the Power Monitor Architecture [POWER-MON-ARCH], with specific information related to the MIB module specified in this document This subsection maps to the section "Architecture High Level Concepts" in the Power Monitoring Architecture [POWER-MON-ARCH]. 5.1 Power Monitor Information Refer to the "Power Monitor Information" section in [POWER-MON- ARCH] for background information. An energy aware device is considered an instance of a power monitor as defined in the [POWER-MON-ARCH]. The Power Monitor information is specified in the MIB module primary table, i.e. the pmTable. Every Power Monitor SHOULD Expires April 16, 2011 [Page 5] Internet-Draft Oct 2010 have a printable name pmName, and MUST HAVE a unique Power Monitor index pmIndex. The pmIndex is a unique index greater than zero for each Power Monitor. It is recommended that values be assigned sequentially starting from 1. The value for each pmIndex must remain constant at least from one re-initialization of the entity's network management system to the next re-initialization. In addition, the Power Monitor can potentially have an entityPhysicalIndex from the ENTITY MIB [RFC4133] in the pmPhysicalEntity, if supported by the Power Monitor. In case of Power over Ethernet (if the Power over Ethernet MIB is supported on the Power Monitor), the Power Monitor pmethPortIndex and pmethPortGrpIndex must contain the values of pethPsePortIndex and pethPsePortGroupIndex, respectively. In case of LLDP-MED (if the LLDP-MED MIB is supported on the Power Monitor), the Power Monitor pmLldpPortNumber must contain the lldpLocPortNum from the LLDP MIB. Possible pmName conventions are: textual DNS name, MAC-address of the device, interface ifName, or a text string uniquely identifying the Power Monitor. However, if entPhysicalName is present for the respective pmPhysicalEntity (i.e. if the ENTITY- MIB is supported), then the pmName SHOULD be identical to the entPhysicalName. The pmName SHOULD be unique. As an example, in the case of IP phones, pmName can be the device DNS name, while in the case of router/switch line cards, the pmName should contain the entPhysicalName. To distinguish if a Power Monitor is considered producing, consuming or metering power, the pmPowerCategory MIB object must be implemented. 5.2 Power Monitor Meter Domain Refer to the "Power Monitor Meter Domain" section in [POWER-MON- ARCH] for background information. Each Power Monitor MUST be a member of a Power Monitor Meter Domain, specified by the pmDomainName MIB Object. The pmDomainName, which is part of the pmTable, is a read-write MIB object. Expires April 16, 2011 [Page 6] Internet-Draft Oct 2010 5.3 Power Monitor Parent and Child Refer to the "Power Monitor Parent and Child" section in [POWER- MON-ARCH] for background information. In order to link the Power Monitor Child and the Power Monitor Parent, the pmParentId is introduced. 5.4 Power Monitor Context Refer to the "Power Monitor Context" section in [POWER-MON-ARCH] for background information. A Power Monitor can provide a pmImportance value in the range of 1..100 to help differentiate the use or relative value to the site. The importance range is from 1 (least important) to 100 (most important). The default importance value is 1. A Power Monitor can provide a set of pmKeywords. These keywords are a list of tags that can be used for grouping and summary reporting within or between Power Monitor Meter Domains. Additionally, a Power Monitor can provide a pmRoleDescription string that indicates the purpose the Power Monitor serves in the network or for the site/business. 6. Structure of the MIB The primary MIB object in this MIB module is the EnergyAwareDeviceMIBObject. The pmTable table of EnergyAwareDeviceMIBObject describes an entity in the network that is a Power Monitor according the [POWER-MON-ARCH]. A Power Monitor that implements the EnergyAwareDeviceMIB contains information describing itself as an entity in the context of the network (such as its Power Monitor Meter Domain pmDomainName) and attributes for describing its business context (such as pmImportance, pmRoleDescription and pmKeywords). The information in this MIB describes the device itself so that the device is aware of its context in a communication network with respect to power. The actual power usage, which is described in [POWER-MON-ARCH], is specified in [POWER-MON-MIB]. Expires April 16, 2011 [Page 7] Internet-Draft Oct 2010 7. MIB Definitions -- ************************************************************ -- -- -- This MIB is used to monitor power usage of network -- devices -- -- ************************************************************* ENERGY-AWARE-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, mib-2, Integer32 FROM SNMPv2-SMI TEXTUAL-CONVENTION FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF SnmpAdminString FROM SNMP-FRAMEWORK-MIB PhysicalIndexOrZero FROM ENTITY-MIB; energyAwareMIB MODULE-IDENTITY LAST-UPDATED "201010150000Z" ORGANIZATION "Cisco Systems, Inc." CONTACT-INFO "Cisco Systems Customer Service Postal: 170 W Tasman Drive San Jose, CA 95134 USA Tel: +1 800 553-NETS E-mail: cs-snmp@cisco.com" DESCRIPTION Expires April 16, 2011 [Page 8] Internet-Draft Oct 2010 "This MIB is used to monitor power and energy in devices." REVISION "201010150000Z" DESCRIPTION "Initial version, published as RFC XXXX." ::= { mib-2 xxxxx } energyAwareMIBNotifs OBJECT IDENTIFIER ::= { energyAwareMIB 0 } energyAwareMIBObjects OBJECT IDENTIFIER ::= { energyAwareMIB 1 } energyAwareMIBConform OBJECT IDENTIFIER ::= { energyAwareMIB 2 } -- Textual Conventions PowerMonitorId ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "This object indicates the Power Monitor Universally Unique Identifier." REFERENCE "IETF RFC 4122" SYNTAX OCTET STRING (SIZE (16)) 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 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) Expires April 16, 2011 [Page 9] Internet-Draft Oct 2010 PethPsePortGroupIndexOrZero::= TEXTUAL-CONVENTION DISPLAY-HINT "d" STATUS current DESCRIPTION "This textual convention is an extension of the pethPsePortGroupIndex convention, 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) PowerMonitorKeywordList ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "A list of keywords that can be used to group Power Monitors for reporting or searching. If multiple keywords are present, then this string will contain all the keywords separated by the ',' character. For example, if a Power Monitor were to be tagged with the keyword values Expires April 16, 2011 [Page 10] Internet-Draft Oct 2010 'hospitality' and 'guest', then the keyword list will be 'hospitality,guest'." SYNTAX OCTET STRING (SIZE (0..255)) -- Objects pmTable OBJECT-TYPE SYNTAX SEQUENCE OF PmEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table lists Power Monitors." ::= { energyAwareMIBObjects 1 } pmEntry OBJECT-TYPE SYNTAX PmEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry describes the attributes of a Power Monitor. Whenever a new Power Monitor is added or deleted a row in the pmTable is added or deleted." INDEX { pmIndex } ::= { pmTable 1 } PmEntry ::= SEQUENCE { pmIndex Integer32, pmPowerMonitorId PowerMonitorId, pmPhysicalEntity PhysicalIndexOrZero, pmEthPortIndex PethPsePortIndexOrZero, pmEthPortGrpIndex PethPsePortGroupIndexOrZero, pmLldpPortNumber LldpPortNumberOrZero, pmName SnmpAdminString, pmDomainName SnmpAdminString, pmRoleDescription SnmpAdminString, pmKeywords PowerMonitorKeywordList, pmImportance Integer32, pmPowerCategory INTEGER, pmParentId PowerMonitorId } pmIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647) Expires April 16, 2011 [Page 11] Internet-Draft Oct 2010 MAX-ACCESS not-accessible STATUS current DESCRIPTION "A unique value, greater than zero, for each Power Monitor. It is recommended that values be assigned sequentially starting from 1. The value for each pmIndex must remain constant at least from one re-initialization of the entity's network management system to the next re- initialization." ::= { pmEntry 1 } pmPowerMonitorId OBJECT-TYPE SYNTAX PowerMonitorId MAX-ACCESS read-only STATUS current DESCRIPTION "This object indicates the Power Monitor UUID identifier." ::= { pmEntry 2 } pmPhysicalEntity OBJECT-TYPE SYNTAX PhysicalIndexOrZero MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the index of a physical entity in the ENTITY MIB. This physical entity is the given observation point. If such a physical entity cannot be specified or is not known then the object is zero." ::= { pmEntry 3 } pmEthPortIndex 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]. If such a power Ethernet port cannot be specified or is not known then the object is zero." ::= { pmEntry 4 } pmEthPortGrpIndex OBJECT-TYPE SYNTAX PethPsePortGroupIndexOrZero MAX-ACCESS read-only STATUS current DESCRIPTION Expires April 16, 2011 [Page 12] Internet-Draft Oct 2010 "This variable uniquely identifies the group containing the port to which a power Ethernet PSE is connected [RFC3621]. If such a group cannot be specified or is not known then the object is zero." ::= { pmEntry 5 } pmLldpPortNumber 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]. If such a port number cannot be specified or is not known then the object is zero." ::= { pmEntry 6 } pmName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-write STATUS current DESCRIPTION "This object specifies a printable name, a text string, for the Power Monitor. The pmName SHOULD be unique.If pmPhysicalName is present for the respective pmPhysicalEntity (i.e. if the ENTITY-MIB is supported), then the pmName SHOULD be identical to the pmPhysicalName. If pmPhysicalName is not present, the process to assign the pmName can be implementation specific. Example: DNS Name, MAC address in canonical form, ifName, etc. However, if pmPhysicalName is present for the respective pmPhysicalEntity (i.e. if the ENTITY-MIB is supported), then the pmName should be identical to the pmPhysicalName." ::= { pmEntry 7 } pmDomainName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-write STATUS current DESCRIPTION "This object specifies the name of a Power Monitor Meter Domain for the Power Monitor. This object specifies a null string if no Power Monitor Domain name is configured. The value of pmDomainName must remain constant at least from one re-initialization of the Expires April 16, 2011 [Page 13] Internet-Draft Oct 2010 entity's network management system to the next re- initialization." ::= { pmEntry 8 } pmRoleDescription OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-write STATUS current DESCRIPTION "This object specifies an administratively assigned name to indicate the purpose a Power Monitor serves in the network. For example, we can have a phone deployed to a lobby with pmRoleDescription as 'Lobby IP phone'. This object specifies a null string if no role description is configured." ::= { pmEntry 9 } pmKeywords OBJECT-TYPE SYNTAX PowerMonitorKeywordList MAX-ACCESS read-write STATUS current DESCRIPTION "This object specifies a list of keywords that can be used to group Power Monitors for reporting or searching. This object specifies the null 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 a Power Monitor 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 pmKeywords instance associated with the same physical entity for as long as that entity remains instantiated. This includes instantiations across all re-initializations/reboots of the network management system." ::= { pmEntry 10 } pmImportance OBJECT-TYPE SYNTAX Integer32 (1..100) MAX-ACCESS read-write STATUS current Expires April 16, 2011 [Page 14] Internet-Draft Oct 2010 DESCRIPTION "This object specifies a ranking of how important the Power Monitor is (on a scale of 1 to 100) compared with other Power Monitors in the same Power Monitor Meter Domain. The ranking should provide a business or operational context for the Power Monitor as compared to other similar Power Monitors. 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" DEFVAL { 1 } ::= { pmEntry 11 } pmPowerCategory OBJECT-TYPE SYNTAX INTEGER { consumer(0), provider(1), meter(2) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes the Power Monitor and indicates the expected power usage of the Power Monitor. A Power Monitor could be designed or manufactured to be a provider(1), consumer(0) or meter(2) of power. The actual power direction is indicated by the sign of pmPower, with positive representing consumption and negative representing production, and may or may not match the expected value of pmPowerCategory. In these cases the two objects can be used to detect unexpected conditions of the Power Monitor. For example a generator with a category of provider(1) that is malfunctioning and is consuming power as indicated by a positive pmPower value." ::= { pmEntry 12 } Expires April 16, 2011 [Page 15] Internet-Draft Oct 2010 pmParentId OBJECT-TYPE SYNTAX PowerMonitorId MAX-ACCESS read-only STATUS current DESCRIPTION "If the current Power Monitor has a Power Monitor Parent, then its Power Monitor Id value is set in pmParentId. Otherwise, the pmParentId value is the null string." ::= { pmEntry 13 } -- Conformance energyAwareMIBCompliances OBJECT IDENTIFIER ::= { energyAwareMIBObjects 3 } energyAwareMIBGroups OBJECT IDENTIFIER ::= { energyAwareMIBObjects 4 } energyAwareMIBFullCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "When this MIB is implemented with support for read-create, 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 } ::= { energyAwareMIBCompliances 1 } energyAwareMIBReadOnlyCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "When this MIB is implemented without support for read-create (i.e. in read-only mode), then such an implementation can claim read-only compliance. Such a device can then be monitored but can not be configured with this MIB." MODULE -- this module MANDATORY-GROUPS { energyAwareMIBTableGroup } Expires April 16, 2011 [Page 16] Internet-Draft Oct 2010 OBJECT pmName MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT pmDomainName MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT pmRoleDescription MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT pmKeywords MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT pmImportance MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { energyAwareMIBCompliances 2 } -- Units of Conformance energyAwareMIBTableGroup OBJECT-GROUP OBJECTS { -- Note that object pmIndex is NOT -- included since it is not-accessible pmPowerMonitorId, pmPhysicalEntity, pmEthPortIndex, pmEthPortGrpIndex, pmLldpPortNumber, pmName, pmDomainName, pmRoleDescription, pmKeywords, pmImportance, pmPowerCategory, pmParentId } STATUS current DESCRIPTION Expires April 16, 2011 [Page 17] Internet-Draft Oct 2010 "This group contains the collection of all the objects related to the PowerMonitor." ::= { energyAwareMIBGroups 1 } END 8. 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 pmDomainName, pmName, pmRoleDescription, pmKeywords, and/or pmImportance 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 Expires April 16, 2011 [Page 18] Internet-Draft Oct 2010 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. 9. IANA Considerations The MIB module in this document uses the following IANA-assigned OBJECT IDENTIFIER values recorded in the SMI Numbers registry: 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. 10. References 10.1. Normative References [RFC2119] S. Bradner, Key words for use in RFCs to Indicate Requirement Levels, BCP 14, RFC 2119, March 1997. [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. Expires April 16, 2011 [Page 19] Internet-Draft Oct 2010 [RFC3621] Berger, A., and D. Romascanu, "Power Ethernet MIB", RFC3621, December 2003. [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. 10.2. Informative References [RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet Standard Management Framework ", RFC 3410, 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. [POWER-MON-REQ] Quittek, J., Winter, R., Dietz, T., Claise, B., and M. Chandramouli, "Requirements for Power Monitoring", draft-quittek-power-monitoring- requirements-01 (work in progress), October 2009. [POWER-MON-ARCH] Claise, B., Parello, J., and B. Schoening, "Power Management Architecture", draft-claise-power- management-arch-01 (work in progress), August 2010. [POWER-MON-MIB] Claise, B., Chandramouli, M., Parello, J., and B. Schoening, "Power and Energy Monitoring MIB", draft- claise-energy-monitoring-mib-05 (work in progress), September 2010. Expires April 16, 2011 [Page 20] Internet-Draft Oct 2010 11. Acknowledgments The authors would like to Brad Schoening and Mouli Chandramouli for their help, and Michael Brown for improving the text dramatically. 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 San Jose, California 95134 US Phone: +1 408 525 2339 Email: jparello@cisco.com Expires April 16, 2011 [Page 21]