< draft-sambo-netmod-yang-fsm-00.txt		draft-sambo-netmod-yang-fsm-01.txt >
	NETMOD Working Group N. Sambo		NETMOD Working Group N. Sambo
	Internet-Draft P. Castoldi		Internet-Draft P. Castoldi
	Intended status: Standards Track Scuola Superiore Sant'Anna		Intended status: Standards Track Scuola Superiore Sant'Anna
	Expires: May 3, 2018 G. Fioccola		Expires: July 13, 2018 G. Fioccola
	Telecom Italia		Telecom Italia
	F. Cugini		F. Cugini
	CNIT		CNIT
	H. Song		H. Song
	T. Zhou		T. Zhou
	Huawei		Huawei
	October 30, 2017		January 9, 2018
	YANG model for finite state machine		YANG model for finite state machine
	draft-sambo-netmod-yang-fsm-00		draft-sambo-netmod-yang-fsm-01
	Abstract		Abstract
	Network operators and service providers are facing the challenge of		Network operators and service providers are facing the challenge of
	deploying systems from different vendors while looking for a trade-		deploying systems from different vendors while looking for a trade-
	off among transmission performance, network device reuse, and capital		off among transmission performance, network device reuse, and capital
	expenditure without the need of being tied to single vendor		expenditure without the need of being tied to single vendor
	equipment. The deployment and operation of more dynamic and		equipment. The deployment and operation of more dynamic and
	programmable network infrastructures can be driven by adopting model-		programmable network infrastructures can be driven by adopting model-
	driven and software-defined control and management paradigms. In		driven and software-defined control and management paradigms. In
	skipping to change at page 2, line 10 ¶		skipping to change at page 2, line 10 ¶
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
	Drafts is at https://datatracker.ietf.org/drafts/current/.		Drafts is at https://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	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."
	This Internet-Draft will expire on May 3, 2018.		This Internet-Draft will expire on July 13, 2018.
	Copyright Notice		Copyright Notice
	Copyright (c) 2017 IETF Trust and the persons identified as the		Copyright (c) 2018 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
	Provisions Relating to IETF Documents		Provisions Relating to IETF Documents
	(https://trustee.ietf.org/license-info) in effect on the date of		(https://trustee.ietf.org/license-info) in effect on the date of
	publication of this document. Please review these documents		publication of this document. Please review these documents
	carefully, as they describe your rights and restrictions with respect		carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of		include Simplified BSD License text as described in Section 4.e of
	the Trust Legal Provisions and are provided without warranty as		the Trust Legal Provisions and are provided without warranty as
	skipping to change at page 2, line 47 ¶		skipping to change at page 2, line 47 ¶
	large Networks . . . . . . . . . . . . . . . . . . . . . 9		large Networks . . . . . . . . . . . . . . . . . . . . . 9
	5. YANG for finite state machine (FSM) . . . . . . . . . . . . . 10		5. YANG for finite state machine (FSM) . . . . . . . . . . . . . 10
	6. Implementation of the pre-programming resiliency schemes in		6. Implementation of the pre-programming resiliency schemes in
	EONs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13		EONs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
	7. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . 14		7. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . 14
	7.1. YANG model for FSM - Tree . . . . . . . . . . . . . . . . 14		7.1. YANG model for FSM - Tree . . . . . . . . . . . . . . . . 14
	7.2. YANG model for FSM - Code . . . . . . . . . . . . . . . . 15		7.2. YANG model for FSM - Code . . . . . . . . . . . . . . . . 15
	7.3. Example of values for the YANG model . . . . . . . . . . 27		7.3. Example of values for the YANG model . . . . . . . . . . 27
	8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 28		8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 28
	9. Other Contributors . . . . . . . . . . . . . . . . . . . . . 28		9. Other Contributors . . . . . . . . . . . . . . . . . . . . . 28
	10. Security Considerations . . . . . . . . . . . . . . . . . . . 28		10. Security Considerations . . . . . . . . . . . . . . . . . . . 29
	11. References . . . . . . . . . . . . . . . . . . . . . . . . . 28		11. References . . . . . . . . . . . . . . . . . . . . . . . . . 29
	11.1. Normative References . . . . . . . . . . . . . . . . . . 28		11.1. Normative References . . . . . . . . . . . . . . . . . . 29
	11.2. Informative References . . . . . . . . . . . . . . . . . 28		11.2. Informative References . . . . . . . . . . . . . . . . . 29
	Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 29		Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 30
	1. Introduction		1. Introduction
	Networks are evolving toward more programmability, flexibility, and		Networks are evolving toward more programmability, flexibility, and
	multi-vendor interoperability. Multi-vendor interoperability can be		multi-vendor interoperability. Multi-vendor interoperability can be
	applied in the context of nodes, i.e. a node composed of components		applied in the context of nodes, i.e. a node composed of components
	provided by different vendors (named fully disaggregated white box)		provided by different vendors (named fully disaggregated white box)
	is assembled under the same control system. This way, operators can		is assembled under the same control system. This way, operators can
	optimize costs and network performance without the need of being tied		optimize costs and network performance without the need of being tied
	to single vendor equipment. NETCONF protocol RFC6241 [RFC6241] based		to single vendor equipment. NETCONF protocol RFC6241 [RFC6241] based
	skipping to change at page 15, line 7 ¶		skipping to change at page 15, line 7 ¶
	| +--rw execute		| +--rw execute
	| +--rw next-action? transition-id-type		| +--rw next-action? transition-id-type
	| +--rw next-state? leafref		| +--rw next-state? leafref
	+--rw simple		+--rw simple
	+--rw execute		+--rw execute
	+--rw next-action? transition-id-type		+--rw next-action? transition-id-type
	+--rw next-state? leafref		+--rw next-state? leafref
	7.2. YANG model for FSM - Code		7.2. YANG model for FSM - Code
			<CODE BEGINS> file "ietf-fsm@2016-03-15.yang"
	module transitions {		module transitions {
	namespace "http://sssup.it/transitions";		namespace "http://sssup.it/transitions";
	prefix ev;		prefix ev;
	import ietf-yang-push {		import ietf-yang-push {
	prefix yp;		prefix yp;
	skipping to change at page 27, line 11 ¶		skipping to change at page 27, line 11 ¶
	// feature statements		// feature statements
	// augment statements.		// augment statements.
	// rpc statements		// rpc statements
	// notification statements		// notification statements
	}//module fsm		}//module fsm
	7.3. Example of values for the YANG model		<CODE ENDS>
			7.3. Example of values for the YANG model
	FIELD NAME | YANG DATA TYPE | VALUE		FIELD NAME | YANG DATA TYPE | VALUE
	_________________|_____________________|________________________		_________________|_____________________|________________________
	Current State | leafref | "an existing state id		Current State | leafref | "an existing state id
	| | in the FSM"		| | in the FSM"
	| |		| |
	State | |		State | |
	id | uint32 | 1		id | uint32 | 1
	name | string | Steady		name | string | Steady
	description | string | "whatever string"		description | string | "whatever string"
	| |		| |
	skipping to change at page 29, line 21 ¶		skipping to change at page 29, line 51 ¶
	[I-D.fioccola-ippm-multipoint-alt-mark]		[I-D.fioccola-ippm-multipoint-alt-mark]
	Fioccola, G., Cociglio, M., Sapio, A., and R. Sisto,		Fioccola, G., Cociglio, M., Sapio, A., and R. Sisto,
	"Multipoint Alternate Marking method for passive and		"Multipoint Alternate Marking method for passive and
	hybrid performance monitoring", draft-fioccola-ippm-		hybrid performance monitoring", draft-fioccola-ippm-
	multipoint-alt-mark-01 (work in progress), October 2017.		multipoint-alt-mark-01 (work in progress), October 2017.
	[I-D.ietf-i2rs-yang-network-topo]		[I-D.ietf-i2rs-yang-network-topo]
	Clemm, A., Medved, J., Varga, R., Bahadur, N.,		Clemm, A., Medved, J., Varga, R., Bahadur, N.,
	Ananthakrishnan, H., and X. Liu, "A Data Model for Network		Ananthakrishnan, H., and X. Liu, "A Data Model for Network
	Topologies", draft-ietf-i2rs-yang-network-topo-17 (work in		Topologies", draft-ietf-i2rs-yang-network-topo-20 (work in
	progress), October 2017.		progress), December 2017.
	[I-D.ietf-ippm-alt-mark]		[I-D.ietf-ippm-alt-mark]
	Fioccola, G., Capello, A., Cociglio, M., Castaldelli, L.,		Fioccola, G., Capello, A., Cociglio, M., Castaldelli, L.,
	Chen, M., Zheng, L., Mirsky, G., and T. Mizrahi,		Chen, M., Zheng, L., Mirsky, G., and T. Mizrahi,
	"Alternate Marking method for passive and hybrid		"Alternate Marking method for passive and hybrid
	performance monitoring", draft-ietf-ippm-alt-mark-13 (work		performance monitoring", draft-ietf-ippm-alt-mark-14 (work
	in progress), October 2017.		in progress), December 2017.
	[I-D.song-opsawg-dnp4iq]		[I-D.song-opsawg-dnp4iq]
	Song, H. and J. Gong, "Requirements for Interactive Query		Song, H. and J. Gong, "Requirements for Interactive Query
	with Dynamic Network Probes", draft-song-opsawg-dnp4iq-01		with Dynamic Network Probes", draft-song-opsawg-dnp4iq-01
	(work in progress), June 2017.		(work in progress), June 2017.
	[I-D.vergara-ccamp-flexigrid-yang]		[I-D.vergara-ccamp-flexigrid-yang]
	Madrid, U., Perdices, D., Lopezalvarez, V., Dios, O.,		Madrid, U., Perdices, D., Lopezalvarez, V., Dios, O.,
	King, D., Lee, Y., and G. Galimberti, "YANG data model for		King, D., Lee, Y., and G. Galimberti, "YANG data model for
	Flexi-Grid Optical Networks", draft-vergara-ccamp-		Flexi-Grid Optical Networks", draft-vergara-ccamp-
	flexigrid-yang-05 (work in progress), July 2017.		flexigrid-yang-06 (work in progress), January 2018.
	[I-D.zhang-ccamp-l1-topo-yang]		[I-D.zhang-ccamp-l1-topo-yang]
	zhenghaomian@huawei.com, z., Fan, Z., Sharma, A., and X.		zhenghaomian@huawei.com, z., Fan, Z., Sharma, A., and X.
	Liu, "A YANG Data Model for Optical Transport Network		Liu, "A YANG Data Model for Optical Transport Network
	Topology", draft-zhang-ccamp-l1-topo-yang-07 (work in		Topology", draft-zhang-ccamp-l1-topo-yang-07 (work in
	progress), April 2017.		progress), April 2017.
	Authors' Addresses		Authors' Addresses
	Nicola Sambo		Nicola Sambo
	Scuola Superiore Sant'Anna		Scuola Superiore Sant'Anna
	Via Moruzzi 1		Via Moruzzi 1
	Pisa 56124		Pisa 56124
	Italy		Italy
	Email: nicola.sambo@sssup.it		Email: nicola.sambo@sssup.it
	Piero Castoldi		Piero Castoldi
	Scuola Superiore Sant'Anna		Scuola Superiore Sant'Anna
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