< draft-vasseur-roll-terminology-00.txt		draft-vasseur-roll-terminology-01.txt >
	Networking Working Group JP. Vasseur		Networking Working Group JP. Vasseur
	Internet-Draft Cisco Systems, Inc		Internet-Draft Cisco Systems, Inc
	Intended status: Informational September 11, 2008		Intended status: Informational September 15, 2008
	Expires: March 15, 2009		Expires: March 19, 2009
	Terminology in Low power And Lossy Networks		Terminology in Low power And Lossy Networks
	draft-vasseur-roll-terminology-00.txt		draft-vasseur-roll-terminology-01.txt
	Status of this Memo		Status of this Memo
	By submitting this Internet-Draft, each author represents that any		By submitting this Internet-Draft, each author represents that any
	applicable patent or other IPR claims of which he or she is aware		applicable patent or other IPR claims of which he or she is aware
	have been or will be disclosed, and any of which he or she becomes		have been or will be disclosed, and any of which he or she becomes
	aware will be disclosed, in accordance with Section 6 of BCP 79.		aware will be disclosed, in accordance with Section 6 of BCP 79.
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF), its areas, and its working groups. Note that		Task Force (IETF), its areas, and its working groups. Note that
	skipping to change at page 1, line 34 ¶		skipping to change at page 1, line 34 ¶
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	The list of current Internet-Drafts can be accessed at		The list of current Internet-Drafts can be accessed at
	http://www.ietf.org/ietf/1id-abstracts.txt.		http://www.ietf.org/ietf/1id-abstracts.txt.
	The list of Internet-Draft Shadow Directories can be accessed at		The list of Internet-Draft Shadow Directories can be accessed at
	http://www.ietf.org/shadow.html.		http://www.ietf.org/shadow.html.
	This Internet-Draft will expire on March 15, 2009.		This Internet-Draft will expire on March 19, 2009.
	Abstract		Abstract
	The documents defines a terminology for discussing routing		The documents defines a terminology for discussing routing
	requirements and solutions for networks referred to as Low power and		requirements and solutions for networks referred to as Low power and
	Lossy Networks (LLN). A LLN is typically composed of many embedded		Lossy Networks (LLN). A LLN is typically composed of many embedded
	devices with limited power, memory, and processing resources		devices with limited power, memory, and processing resources
	interconnected by a variety of links. There is a wide scope of		interconnected by a variety of links. There is a wide scope of
	application areas for LLNs, including industrial monitoring, building		application areas for LLNs, including industrial monitoring, building
	automation (HVAC, lighting, access control, fire), connected home,		automation (Heating, Ventilating, and Air Conditioning also referred
			to as HVAC, lighting, access control, fire), connected home,
	healthcare, environmental monitoring, urban sensor networks, energy		healthcare, environmental monitoring, urban sensor networks, energy
	management, assets tracking, refrigeration.		management, assets tracking, refrigeration.
	Requirements Language		Requirements Language
	The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",		The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
	"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this		"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
	document are to be interpreted as described in RFC 2119 [RFC2119].		document are to be interpreted as described in RFC 2119 [RFC2119].
	Table of Contents		Table of Contents
	skipping to change at page 3, line 7 ¶		skipping to change at page 3, line 7 ¶
	4. Security Considerations . . . . . . . . . . . . . . . . . . . . 6		4. Security Considerations . . . . . . . . . . . . . . . . . . . . 6
	5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 6		5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 6
	6. References . . . . . . . . . . . . . . . . . . . . . . . . . . 6		6. References . . . . . . . . . . . . . . . . . . . . . . . . . . 6
	6.1. Normative References . . . . . . . . . . . . . . . . . . . 6		6.1. Normative References . . . . . . . . . . . . . . . . . . . 6
	6.2. Informative References . . . . . . . . . . . . . . . . . . 6		6.2. Informative References . . . . . . . . . . . . . . . . . . 6
	Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 7		Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 7
	Intellectual Property and Copyright Statements . . . . . . . . . . 8		Intellectual Property and Copyright Statements . . . . . . . . . . 8
	1. Introduction		1. Introduction
	The documents defines a terminology for discussing routing		This document defines a terminology for discussing routing
	requirements and solutions for networks referred to as Low power and		requirements and solutions for networks referred to as Low power and
	Lossy Networks (LLN).		Lossy Networks (LLN).
	Low power and Lossy networks (LLNs) are typically composed of many		Low power and Lossy networks (LLNs) are typically composed of many
	embedded devices with limited power, memory, and processing resources		embedded devices with limited power, memory, and processing resources
	interconnected by a variety of links, such as IEEE 802.15.4, Low		interconnected by a variety of links, such as IEEE 802.15.4, Low
	Power WiFi. There is a wide scope of application areas for LLNs,		Power WiFi. There is a wide scope of application areas for LLNs,
	including industrial monitoring, building automation (HVAC, lighting,		including industrial monitoring, building automation (HVAC, lighting,
	access control, fire), connected home, healthcare, environmental		access control, fire), connected home, healthcare, environmental
	monitoring, urban sensor networks, energy management, assets		monitoring, urban sensor networks, energy management, assets tracking
	tracking, refrigeration.		and refrigeration.
	Since these applications are usually highly specific (Industrial		Since these applications are usually highly specific (Industrial
	Automation, Building Automation, ...), it is not uncommon to see a		Automation, Building Automation, ...), it is not uncommon to see a
	number of disparate terms to describe the same device of		number of disparate terms to describe the same device or
	functionality. Thus it was needed to specify common terms for all		functionality. Thus it was needed to specify common terms for all
	LLNs to avoid confusion and discrepancies. Terminology specific to a		LLNs to avoid confusion and discrepancies. Terminology specific to a
	particular application are out of the scope of this document.		particular application are out of the scope of this document.
	It is expected that all routing requirements documents defining		It is expected that all routing requirements documents defining
	requirements or specifying routing solutions for LLN will use the		requirements or specifying routing solutions for LLN will use the
	common terminology specified in this document.		common terminology specified in this document.
	2. Terminology		2. Terminology
	Actuator: a field device that moves or controls an equipment. An		Actuator: a field device that controls a set of equipments. An
	actuator can control and/or modulates the flow of a gas or liquid,		actuator can control and/or modulates the flow of a gas or liquid,
	control electricity distribution, perform a mechanical operation, ...		control electricity distribution, perform a mechanical operation, ...
	AMI: Advanced Metering Infrastructure, part of Smart Grid.		AMI: Advanced Metering Infrastructure that makes use of Smart Grid
	Encompasses smart-metering applications.		technologies. Encompasses smart-metering applications.
	BAS: Building Automation System. This term is synonymous with
	Facility Management System (FMS).
	BMS: Building Automation System. This term is synonymous with
	Facility Management System (FMS)
	Channel: Radio frequency sub-band used to transmit a modulated signal		Channel: Radio frequency sub-band used to transmit a modulated signal
	carrying packets.		carrying packets.
	Channel Hopping An algorithm by which field devices synchronously		Channel Hopping: A procedure by which field devices synchronously
	change channels during operation		change channels during operation.
	Commissioning Tool: Any physical or logical device temporarily added		Commissioning Tool: Any physical or logical device temporarily added
	to the network for the expressed purpose of setting up the network		to the network for the expressed purpose of setting up the network
	and device operational parameters		and device operational parameters. The commision tool can also be
			temporarily added for scheduled or unscheduled maintenance.
	Closed Loop Control: A process whereby a device controller controls		Closed Loop Control: A process whereby a device controller controls
	an actuator based on information sensed by one or more field devices.		an actuator based on information sensed by one or more field devices.
	Controller: A field device that can receive sensor input and		Controller: A field device that can receive sensor input and
	automatically change the environment in the facility by manipulating		automatically change the environment in the facility by manipulating
	digital or analog actuators.		digital or analog actuators.
	DA: Distribution Automation, part of Smart Grid. Encompasses		DA: Distribution Automation, part of Smart Grid. Encompasses
	technologies for maintenance and management of electrical		technologies for maintenance and management of electrical
	distribution systems.		distribution systems.
	Downstream: Data direction traveling from outside of the LLN (LAN,		Downstream: Data direction traveling from outside of the LLN (e.g.
	WAN, Internet) via the LBR to the LLN.		traffic coming from a LAN, WAN or the Internet) via a LBR.
	Field Device: physical devices placed in the network's operating		Field Device: physical devices placed in the network's operating
	environment (plant, urban, home, ...). Field devices include		environment (plant, urban, home, ...). Field devices include
	sensors, actuators as well as routers and Lowe power and lossy		sensors, actuators as well as routers and Low power and lossy network
	network Border Router (LBR). A field device is most of the time a		Border Router (including LBR). A field device is most of the time
	constrained device with limited CPU, memory footprint, storage		(but not always) a constrained device with limited CPU, memory
	capacity, bandwidth and sometimes power constrained (battery		footprint, storage capacity, bandwidth and sometimes power
	operated). At the time of writing, for the sake of illustration, a		constrained (battery operated). At the time of writing, for the sake
	typicaly sensor or actuator would have a few KBytes of RAM, a few		of illustration, a typicaly sensor or actuator would have a few
	dozens of KBytes of ROM/Flash memory, a 8/16/32 bit microcontroller		KBytes of RAM, a few dozens of KBytes of ROM/Flash memory, a 8/16/32
	and communication capabilities ranging from a few Kbits/s to a few		bit microcontroller and communication capabilities ranging from a few
	hundreds of KBits/s. With the dramatic imrpovments of hardware and		Kbits/s to a few hundreds of KBits/s. Altough it is expected to see
	software technologies it is expected to see continous improvments but		comtinuous improvements of hardware and software technologies, such
	such devices will likely continue to be seen as constrained devices		devices will likely continue to be seen as constrained devices
	compared to computers and routers used in the Internet.		compared to computers and routers used in the Internet.
	Flash memory: non-volatile memory that can be re-programmed.		Flash memory: non-volatile memory that can be re-programmed.
	FMS: Facility Management System. A global term applied across all		FMS: Facility Management System. A global term applied across all
	the vertical designations within a building including, HVAC, Fire,		the vertical designations within a building including, Heating,
			Ventilating, and Air Conditioning also referred to as HVAC, Fire,
	Security, Lighting and Elevator control.		Security, Lighting and Elevator control.
	HART: "Highway Addressable Remote Transducer", a group of		HART: "Highway Addressable Remote Transducer", a group of
	specifications for industrial process and control devices		specifications for industrial process and control devices
	administered by the HART Foundation (see [HART]). The latest version		administered by the HART Foundation (see [HART]). The latest version
	for the specifications is HART7 which includes the additions for		for the specifications is HART7 which includes the additions for
	WirelessHART.		WirelessHART.
	HVAC: Heating, Ventilation and Air Conditioning. A term applied to		HVAC: Heating, Ventilation and Air Conditioning. A term applied to
	the comfort level of an internal space.		the comfort level of an internal space.
	ISA: "International Society of Automation". ISA is an ANSI		ISA: "International Society of Automation". ISA is an ANSI
	accredited standards-making society. ISA100 is an ISA committee		accredited standards-making society. ISA100 is an ISA committee
	whose charter includes defining a family of standards for industrial		whose charter includes defining a family of standards for industrial
	automation. [ISA100.11a] is a working group within ISA100 that is		automation. [ISA100.11a] is a working group within ISA100 that is
	working on a standard for monitoring and non-critical process control		working on a standard for monitoring and non-critical process control
	applications.		applications.
	LAN: Local Area Network.		LAN: Local Area Network.
	LBR: Low power and loosy network Border Router. The LBR is a device		LBR: Low power and lossy network Border Router. The LBR is a device
	that connects the low power and lossy network to another routing		that connects the low power and lossy network to another routing
	domain such as a Local Area Network (LAN), Wide Area Network (WAN) or		domain such as a Local Area Network (LAN), Wide Area Network (WAN) or
	the Internet where a possibly different routing protocol is in		the Internet where a possibly different routing protocol is in
	operation. The LBR acts as a routing device and may possibly host		operation. The LBR acts as a routing device and may possibly host
	other functions such as data collector or aggregator, which is fairly		other functions such as data collector or aggregator.
	typical in LLN.
	LLN: Low power and Lossy networks (LLNs) are typically composed of		LLN: Low power and Lossy networks (LLNs) are typically composed of
	many embedded devices with limited power, memory, and processing		many embedded devices with limited power, memory, and processing
	resources interconnected by a variety of links, such as IEEE		resources interconnected by a variety of links, such as IEEE
	802.15.4, Low Power WiFi. There is a wide scope of application areas		802.15.4, Low Power WiFi. There is a wide scope of application areas
	for LLNs, including industrial monitoring, building automation (HVAC,		for LLNs, including industrial monitoring, building automation (HVAC,
	lighting, access control, fire), connected home, healthcare,		lighting, access control, fire), connected home, healthcare,
	environmental monitoring, urban sensor networks, energy management,		environmental monitoring, urban sensor networks, energy management,
	assets tracking, refrigeration..		assets tracking and refrigeration..
	Open Loop Control: A process whereby a plant operator manually		Open Loop Control: A process whereby a plant operator manually
	manipulates an actuator over the network where the decision is		manipulates an actuator over the network where the decision is
	influenced by information sensed by field devices.		influenced by information sensed by field devices.
	RAM: Random Access Memory. The RAM is a volatile memory.		RAM: Random Access Memory. The RAM is a volatile memory.
	ROM: Read Only Memory.		ROM: Read Only Memory.
	ROLL: Routing Over Low power and Lossy networks.		ROLL: Routing Over Low power and Lossy networks.
	Schedule: An agreed execution, wake-up, transmission, reception,		Schedule: An agreed execution, wake-up, transmission, reception,
	etc., time-table between two or more field devices.		etc., time-table between two or more field devices.
	Sensor: device that measures a physical quantity and convert it to a		Sensor: device that measures a physical quantity and converts it to a
	analog or digital signal that can be read by a program or a user.		analog or digital signal that can be read by a program or a user.
	Sensed data can be of many types: electromagnetic (current, voltage,		Sensed data can be of many types: electromagnetic (current, voltage,
	power, resistance) , mechanical (pressure, flow, liquid density,		power, resistance) , mechanical (pressure, flow, liquid density,
	humidity, ...), chemical (oxygen, carbon monoxide, ...), acoustic		humidity, ...), chemical (oxygen, carbon monoxide, ...), acoustic
	(noise, ultrasound), ...		(noise, ultrasound), ...
	Smart Grid: a broad class of applications to network and automate		Smart Grid: a broad class of applications to network and automate
	utility infrastructure.		utility infrastructure.
	Timeslot: A fixed time interval that may be used for the transmission		Timeslot: A fixed time interval that may be used for the transmission
	or reception of a packet between two field devices. A timeslot used		or reception of a packet between two field devices. A timeslot used
	for communications is associated with a slotted-link		for communications is associated with a slotted-link
			Upstream: Data direction traveling from the LLN via the LBR to
	Uptream: Data direction traveling from the LLN via the LBR to outside		outside of the LLN (LAN, WAN, Internet).
	of the LLN (LAN, WAN, Internet).
	WAN: Wide Area Network.		WAN: Wide Area Network.
	3. IANA Considerations		3. IANA Considerations
	This document includes no request for IANA action.		This document includes no request for IANA action.
	4. Security Considerations		4. Security Considerations
	Since this document specifies terminology and does not specify new		Since this document specifies terminology and does not specify new
	procedure or protocols, there are no security issues associated with		procedure or protocols, there are no security issues associated with
	it.		it.
	5. Acknowledgements		5. Acknowledgements
	The authors would like to thank ...		The authors would like to thank Christian Jacquenet, Tim Winter and
			Pieter De Mil for their valuable feed-back.
	6. References		6. References
	6.1. Normative References		6.1. Normative References
	[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate		[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
	Requirement Levels", BCP 14, RFC 2119, March 1997.		Requirement Levels", BCP 14, RFC 2119, March 1997.
	6.2. Informative References		6.2. Informative References
	[I-D.ietf-roll-home-routing-reqs]		[I-D.ietf-roll-home-routing-reqs]
	Brandt, A. and G. Porcu, "Home Automation Routing		Brandt, A., Buron, J., and G. Porcu, "Home Automation
	Requirement in Low Power and Lossy Networks",		Routing Requirement in Low Power and Lossy Networks",
	draft-ietf-roll-home-routing-reqs-02 (work in progress),		draft-ietf-roll-home-routing-reqs-03 (work in progress),
	July 2008.		September 2008.
	[I-D.ietf-roll-indus-routing-reqs]		[I-D.ietf-roll-indus-routing-reqs]
	Networks, D., Thubert, P., Dwars, S., and T. Phinney,		Networks, D., Thubert, P., Dwars, S., and T. Phinney,
	"Industrial Routing Requirements in Low Power and Lossy		"Industrial Routing Requirements in Low Power and Lossy
	Networks", draft-ietf-roll-indus-routing-reqs-01 (work in		Networks", draft-ietf-roll-indus-routing-reqs-01 (work in
	progress), July 2008.		progress), July 2008.
	[I-D.ietf-roll-urban-routing-reqs]		[I-D.ietf-roll-urban-routing-reqs]
	Dohler, M., Watteyne, T., Winter, T., Jacquenet, C.,		Dohler, M., Watteyne, T., Winter, T., Jacquenet, C.,
	Madhusudan, G., Chegaray, G., and D. Barthel, "Urban WSNs		Madhusudan, G., Chegaray, G., and D. Barthel, "Urban WSNs
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