draft-ietf-ccamp-otn-topo-yang-02.txt		draft-ietf-ccamp-otn-topo-yang-03.txt
	CCAMP Working Group H. Zheng		CCAMP Working Group H. Zheng
	Internet-Draft Z. Fan		Internet-Draft A. Guo
	Intended status: Standards Track Huawei Technologies		Intended status: Standards Track I. Busi
	Expires: May 3, 2018 A. Sharma		Expires: December 17, 2018 Huawei Technologies
			A. Sharma
	Google		Google
	X. Liu		X. Liu
	Jabil		Jabil
	S. Belotti		S. Belotti
	Nokia		Nokia
	Y. Xu		Y. Xu
	CAICT		CAICT
	L. Wang		L. Wang
	China Mobile		China Mobile
	O. Gonzalez de Dios		O. Gonzalez de Dios
	Telefonica		Telefonica
	October 30, 2017		June 15, 2018
	A YANG Data Model for Optical Transport Network Topology		A YANG Data Model for Optical Transport Network Topology
	draft-ietf-ccamp-otn-topo-yang-02		draft-ietf-ccamp-otn-topo-yang-03
	Abstract		Abstract
	A transport network is a server-layer network designed to provide		A transport network is a server-layer network designed to provide
	connectivity services for a client-layer network to carry the client		connectivity services for a client-layer network to carry the client
	traffic transparently across the server-layer network resources. A		traffic transparently across the server-layer network resources. A
	transport network can be constructed from equipments utilizing any of		transport network can be constructed from equipments utilizing any of
	a number of different transport technologies such as the evolving		a number of different transport technologies such as the evolving
	Optical Transport Networks (OTN) or packet transport as provided by		Optical Transport Networks (OTN) or packet transport as provided by
	the MPLS-Transport Profile (MPLS-TP).		the MPLS-Transport Profile (MPLS-TP).
	skipping to change at page 2, line 10 ¶		skipping to change at page 2, line 12 ¶
	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 December 17, 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
	described in the Simplified BSD License.		described in the Simplified BSD License.
	Table of Contents		Table of Contents
	1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2		1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
	2. Terminology and Notations . . . . . . . . . . . . . . . . . . 3		2. Terminology and Notations . . . . . . . . . . . . . . . . . . 3
	3. YANG Data Model for OTN Topology . . . . . . . . . . . . . . 4		3. YANG Data Model for OTN Topology . . . . . . . . . . . . . . 4
	3.1. the YANG Tree . . . . . . . . . . . . . . . . . . . . . . 4		3.1. OTN Topology Data Model Overview . . . . . . . . . . . . 4
	3.2. Explanation of the OTN Topology Data Model . . . . . . . 4		3.2. YANG Tree for OTN topology . . . . . . . . . . . . . . . 5
	3.3. The YANG Code . . . . . . . . . . . . . . . . . . . . . . 5		4. The YANG Code . . . . . . . . . . . . . . . . . . . . . . . . 20
	4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9		5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 54
	5. Manageability Considerations . . . . . . . . . . . . . . . . 9		6. Manageability Considerations . . . . . . . . . . . . . . . . 54
	6. Security Considerations . . . . . . . . . . . . . . . . . . . 9		7. Security Considerations . . . . . . . . . . . . . . . . . . . 54
	7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 10		8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 55
	8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 10		9. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 55
	9. References . . . . . . . . . . . . . . . . . . . . . . . . . 10		10. References . . . . . . . . . . . . . . . . . . . . . . . . . 55
	9.1. Normative References . . . . . . . . . . . . . . . . . . 10		10.1. Normative References . . . . . . . . . . . . . . . . . . 55
	9.2. Informative References . . . . . . . . . . . . . . . . . 11		10.2. Informative References . . . . . . . . . . . . . . . . . 56
	Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 12		Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 57
	1. Introduction		1. Introduction
	A transport network is a server-layer network designed to provide		A transport network is a server-layer network designed to provide
	connectivity services for a client-layer network to carry the client		connectivity services for a client-layer network to carry the client
	traffic transparently across the server-layer network resources. A		traffic transparently across the server-layer network resources. A
	transport network can be constructed of equipments utilizing any of a		transport network can be constructed of equipments utilizing any of a
	number of different transport technologies such as the Optical		number of different transport technologies such as the Optical
	Transport Networks (OTN) or packet transport as provided by the MPLS-		Transport Networks (OTN) or packet transport as provided by the MPLS-
	Transport Profile (MPLS-TP).		Transport Profile (MPLS-TP).
	skipping to change at page 3, line 31 ¶		skipping to change at page 3, line 33 ¶
	controller;		controller;
	The YANG model defined in this document is independent of control		The YANG model defined in this document is independent of control
	plane protocols and captures topology related information pertaining		plane protocols and captures topology related information pertaining
	to an Optical Transport Networks (OTN)-electrical layer, as the scope		to an Optical Transport Networks (OTN)-electrical layer, as the scope
	specified by [RFC7062] and [RFC7138]. Furthermore, it is not a		specified by [RFC7062] and [RFC7138]. Furthermore, it is not a
	stand-alone model, but augmenting from the TE topology YANG model		stand-alone model, but augmenting from the TE topology YANG model
	defined in [I-D.ietf-teas-yang-te-topo]. Following TE topology YANG		defined in [I-D.ietf-teas-yang-te-topo]. Following TE topology YANG
	model, the YANG model defined in this document is interface		model, the YANG model defined in this document is interface
	independent. The applicability of models to interfaces is described		independent. The applicability of models to interfaces is described
	in [I-D.zhang-teas-actn-yang].		in [I-D.ietf-teas-actn-yang].
	Optical network technologies, including fixed Dense Wavelength		Optical network technologies, including fixed Dense Wavelength
	Switched Optical Network (WSON) and flexible optical networks		Switched Optical Network (WSON) and flexible optical networks
	(a.k.a., flexi-grid networks), are covered in		(a.k.a., flexi-grid networks), are covered in
	[I-D.ietf-ccamp-wson-yang] and [I-D.vergara-ccamp-flexigrid-yang],		[I-D.ietf-ccamp-wson-yang] and [I-D.ietf-ccamp-flexigrid-yang],
	respectively.		respectively.
	2. Terminology and Notations		2. Terminology and Notations
	A simplified graphical representation of the data model is used in		A simplified graphical representation of the data model is used in
	this document. The meaning of the symbols in the YANG data tree		this document. The meaning of the symbols in the YANG data tree
	presented later in this document is defined in		presented later in this document is defined in
	[I-D.ietf-netmod-yang-tree-diagrams]. They are provided below for		[I-D.ietf-netmod-yang-tree-diagrams]. They are provided below for
	reference.		reference.
	skipping to change at page 4, line 16 ¶		skipping to change at page 4, line 19 ¶
	means a presence container, and "*" denotes a list and leaf-list.		means a presence container, and "*" denotes a list and leaf-list.
	o Parentheses enclose choice and case nodes, and case nodes are also		o Parentheses enclose choice and case nodes, and case nodes are also
	marked with a colon (":").		marked with a colon (":").
	o Ellipsis ("...") stands for contents of subtrees that are not		o Ellipsis ("...") stands for contents of subtrees that are not
	shown.		shown.
	3. YANG Data Model for OTN Topology		3. YANG Data Model for OTN Topology
	3.1. the YANG Tree		3.1. OTN Topology Data Model Overview
	module: ietf-otn-topology
	augment /nw:networks/nw:network/nw:network-types/tet:te-topology:
	+--rw otn-topology!
	augment /nw:networks/nw:network/nt:link/tet:te
	/tet:te-link-attributes:
	+--rw available-odu-info* [priority]
	| +--rw priority uint8
	| +--rw odulist* [odu-type]
	| | +--rw odu-type identityref
	| | +--rw number? uint16
	| | +--rw tpn-range? string
	| +--rw ts-range? string
	+--rw tsg? identityref
	+--rw distance? uint32
	augment /nw:networks/nw:network/nw:node/nt:termination-point
	/tet:te:
	+--rw supported-payload-types* [index]
	+--rw index uint16
	+--rw payload-type? string
	3.2. Explanation of the OTN Topology Data Model
	As can be seen, from the data tree shown in Section 3.1, the YANG		As can be seen, from the data tree shown in Section 3.1, the YANG
	module presented in this document augments from a more generic		module presented in this document augments from a more generic
	Traffic Engineered (TE) network topology data model, i.e., the ietf-		Traffic Engineered (TE) network topology data model, i.e., the ietf-
	te-topology.yang as specified in [I-D.ietf-teas-yang-te-topo]. The		te-topology.yang as specified in [I-D.ietf-teas-yang-te-topo]. In
	entities and their attributes, such as node, termination points and		section 6 of [I-D.ietf-teas-yang-te-topo], the guideline for
			augmenting TE topology model was provided, and in this draft we
			respetively augment the OTN attributes, TE bandwidth and TE label.
			The entities and TE attributes, such as node, termination points and
	links, are still applicable for describing an OTN topology and the		links, are still applicable for describing an OTN topology and the
	model presented in this document only specifies with technology-		model presented in this document only specifies with technology-
	specific attributes/information. For example, if the data plane		specific attributes/information. In OTN attributes augmentation,
	complies with ITU-T G.709 (2012) standards, the switching-capability		mainly OTN-specific parameters are included such as Tributary Slot
	and encoding attributes MUST be filled as OTN-TDM and G.709		Granularity (TSG), payload type and so on.
	ODUk(Digital Path) respectively.
			For different order of ODU in OTN technology, the te-bandwidth is
			augmented to allow specifying the type of ODU container and the
			number a link can support per priority level. For example, for a
			ODU3 link, it may advertise 32*ODU0, 16*ODU1, 4*ODU2 available,
			assuming only a single priority level is supported. If one of ODU2
			resource is taken to establish a ODU path, then the availability of
			this ODU link is updated as 24*ODU0, 12*ODU1, 3*ODU2 available. If
			there are equipment hardware limitations, then a subset of potential
			ODU type SHALL be advertised. For instance, an ODU3 link may only
			support 4*ODU2.
			The types of OTN label can be divided into the tributary ports and
			the tributary slots, represented by TPN or TS list respectively. In
			the TE-label augmentation, two optional label formats are available
			for label representation.
	Note the model in this document re-uses some attributes defined in		Note the model in this document re-uses some attributes defined in
	ietf-transport-types.yang, which is specified in		ietf-otn-types.yang, which is specified in
	[I-D.ietf-ccamp-otn-tunnel-model].		[I-D.ietf-ccamp-otn-tunnel-model].
	One of the main augmentations in this model is that it allows to		3.2. YANG Tree for OTN topology
	specify the type of ODU container and the number a link can support
	per priority level. For example, for a ODU3 link, it may advertise
	32*ODU0, 16*ODU1, 4*ODU2 available, assuming only a single priority
	level is supported. If one of ODU2 resource is taken to establish a
	ODU path, then the availability of this ODU link is updated as
	24*ODU0, 12*ODU1, 3*ODU2 available. If there are equipment hardware
	limitations, then a subset of potential ODU type SHALL be advertised.
	For instance, an ODU3 link may only support 4*ODU2.
	3.3. The YANG Code		The following OTN specific attributes have been augmented to TE
			topology models.
	<CODE BEGINS> file "ietf-otn-topology@2017-10-30.yang"		module: ietf-otn-topology
			augment /nw:networks/nw:network/nw:network-types/tet:te-topology:
			+--rw otn-topology!
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes:
			+--rw tsg? identityref
			+--rw distance? uint32
			augment /nw:networks/nw:network/nw:node/nt:termination-point/tet:te:
			+--rw supported-payload-types* [index]
			| +--rw index uint16
			| +--rw payload-type? string
			+--rw client-facing? boolean
	module ietf-otn-topology {		The technology specific TE bandwidth for OTN topology can be specified
	yang-version 1.1;		using the following augment statements:
	namespace "urn:ietf:params:xml:ns:yang:ietf-otn-topology";		augment /nw:networks/nw:network/nw:node/nt:termination-point/tet:te
	prefix "otntopo";		/tet:interface-switching-capability/tet:max-lsp-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odu-type? identityref
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:path-constraints
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix
			/tet:path-constraints/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:path-constraints/tet:te-bandwidth/tet:technology:
	import ietf-network {		+--:(otn)
	prefix "nw";		+--ro odulist* [odu-type]
	}		+--ro odu-type identityref
			+--ro number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:path-constraints
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--ro odulist* [odu-type]
			+--ro odu-type identityref
			+--ro number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:client-layer-adaptation
			/tet:switching-capability/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:path-constraints/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:path-constraints
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:interface-switching-capability/tet:max-lsp-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odu-type? identityref
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:max-link-bandwidth/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:max-resv-link-bandwidth/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:unreserved-bandwidth/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry
			/tet:interface-switching-capability/tet:max-lsp-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--ro odu-type? identityref
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry/tet:max-link-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--ro odulist* [odu-type]
			+--ro odu-type identityref
			+--ro number? uint16
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry/tet:max-resv-link-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--ro odulist* [odu-type]
			+--ro odu-type identityref
			+--ro number? uint16
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry/tet:unreserved-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--ro odulist* [odu-type]
			+--ro odu-type identityref
			+--ro number? uint16
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:interface-switching-capability
			/tet:max-lsp-bandwidth/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odu-type? identityref
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:max-link-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
	import ietf-network-topology {		augment /nw:networks/tet:te/tet:templates/tet:link-template
	prefix "nt";		/tet:te-link-attributes/tet:max-resv-link-bandwidth
	}		/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:unreserved-bandwidth
			/tet:te-bandwidth/tet:technology:
			+--:(otn)
			+--rw odulist* [odu-type]
			+--rw odu-type identityref
			+--rw number? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:te-node-attributes/tet:connectivity-matrices
			/tet:label-restriction:
			+--rw range-type? identityref
			+--rw tsg? identityref
			+--rw priority? uint8
	import ietf-te-topology {		The technology specific TE label for this OTN topology can be specified
	prefix "tet";		using the following augment statements:
	}
	import ietf-otn-types {		augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
	prefix "otn-types";		/tet:connectivity-matrices/tet:label-restriction
	}		/tet:label-start/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:label-restriction
			/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:underlay/tet:primary-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:underlay/tet:backup-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:optimizations/tet:algorithm
			/tet:metric/tet:optimization-metric
			/tet:explicit-route-exclude-objects
			/tet:route-object-exclude-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:optimizations/tet:algorithm
			/tet:metric/tet:optimization-metric
			/tet:explicit-route-include-objects
			/tet:route-object-include-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:path-properties
			/tet:path-route-objects/tet:path-route-object/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix
			/tet:from/tet:label-restriction:
			+--rw range-type? identityref
			+--rw tsg? identityref
			+--rw priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix/tet:from
			/tet:label-restriction/tet:label-start/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix/tet:from
			/tet:label-restriction/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix/tet:to
			/tet:label-restriction:
			+--rw range-type? identityref
			+--rw tsg? identityref
			+--rw priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix/tet:to
			/tet:label-restriction/tet:label-start/tet:te-label
			/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix/tet:to
			/tet:label-restriction/tet:label-end/tet:te-label
			/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix
			/tet:underlay/tet:primary-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
	organization		augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
	"IETF CCAMP Working Group";		/tet:connectivity-matrices/tet:connectivity-matrix
	contact		/tet:underlay/tet:backup-path/tet:path-element/tet:type
	"WG Web: <http://tools.ietf.org/wg/ccamp/>		/tet:label/tet:label-hop/tet:te-label/tet:technology:
	WG List: <mailto:ccamp@ietf.org>		+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix
			/tet:optimizations/tet:algorithm/tet:metric
			/tet:optimization-metric/tet:explicit-route-exclude-objects
			/tet:route-object-exclude-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix
			/tet:optimizations/tet:algorithm/tet:metric
			/tet:optimization-metric/tet:explicit-route-include-objects
			/tet:route-object-include-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes
			/tet:connectivity-matrices/tet:connectivity-matrix
			/tet:path-properties/tet:path-route-objects
			/tet:path-route-object/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:label-restriction:
			+--ro range-type? identityref
			+--ro tsg? identityref
			+--ro priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:label-restriction/tet:label-start/tet:te-label
			/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:label-restriction/tet:label-end/tet:te-label
			/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:underlay/tet:primary-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:underlay/tet:backup-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:optimizations/tet:algorithm/tet:metric
			/tet:optimization-metric/tet:explicit-route-exclude-objects
			/tet:route-object-exclude-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:optimizations/tet:algorithm/tet:metric
			/tet:optimization-metric/tet:explicit-route-include-objects
			/tet:route-object-include-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:path-properties/tet:path-route-objects
			/tet:path-route-object/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:from/tet:label-restriction:
			+--ro range-type? identityref
			+--ro tsg? identityref
			+--ro priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:from/tet:label-restriction
			/tet:label-start/tet:te-label/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:from/tet:label-restriction
			/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:to/tet:label-restriction:
			+--ro range-type? identityref
			+--ro tsg? identityref
			+--ro priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:to/tet:label-restriction
			/tet:label-start/tet:te-label/tet:technology:
	Editor: Haomian Zheng		+--:(otn)
	<mailto:zhenghaomian@huawei.com>		+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:to/tet:label-restriction
			/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:underlay/tet:primary-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:underlay/tet:backup-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:optimizations/tet:algorithm
			/tet:metric/tet:optimization-metric
			/tet:explicit-route-exclude-objects
			/tet:route-object-exclude-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:optimizations/tet:algorithm
			/tet:metric/tet:optimization-metric
			/tet:explicit-route-include-objects
			/tet:route-object-include-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:information-source-entry/tet:connectivity-matrices
			/tet:connectivity-matrix/tet:path-properties
			/tet:path-route-objects/tet:path-route-object/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:label-restriction:
			+--rw range-type? identityref
			+--rw tsg? identityref
			+--rw priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:label-restriction/tet:label-start/tet:te-label
			/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:label-restriction/tet:label-end/tet:te-label
			/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:underlay/tet:primary-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:underlay/tet:backup-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:optimizations/tet:algorithm/tet:metric
			/tet:optimization-metric/tet:explicit-route-exclude-objects
			/tet:route-object-exclude-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:optimizations/tet:algorithm/tet:metric
			/tet:optimization-metric/tet:explicit-route-include-objects
			/tet:route-object-include-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:path-properties/tet:path-route-objects
			/tet:path-route-object/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:label-restriction:
			+--rw range-type? identityref
			+--rw tsg? identityref
			+--rw priority? uint8
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:label-restriction
			/tet:label-start/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:label-restriction
			/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:underlay/tet:primary-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:underlay/tet:backup-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:optimizations/tet:algorithm
			/tet:metric/tet:optimization-metric
			/tet:explicit-route-exclude-objects
			/tet:route-object-exclude-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:optimizations/tet:algorithm
			/tet:metric/tet:optimization-metric
			/tet:explicit-route-include-objects
			/tet:route-object-include-object/tet:type/tet:label
			/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nw:node/tet:te
			/tet:tunnel-termination-point/tet:local-link-connectivities
			/tet:local-link-connectivity/tet:path-properties
			/tet:path-route-objects/tet:path-route-object/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--ro tpn? uint16
			+--ro tsg? identityref
			+--ro ts-list? string
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:underlay/tet:primary-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:underlay/tet:backup-path/tet:path-element/tet:type
			/tet:label/tet:label-hop/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:label-restriction:
			+--rw range-type? identityref
			+--rw tsg? identityref
			+--rw priority? uint8
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:label-restriction/tet:label-start/tet:te-label
			/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes
			/tet:label-restriction/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry/tet:label-restriction:
			+--ro range-type? identityref
			+--ro tsg? identityref
			+--ro priority? uint8
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry/tet:label-restriction
			/tet:label-start/tet:te-label/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/nw:network/nt:link/tet:te
			/tet:information-source-entry/tet:label-restriction
			/tet:label-end/tet:te-label/tet:technology:
			+--:(otn)
			+--ro (otn-label-type)?
			+--:(tributary-port)
			| +--ro tpn? uint16
			+--:(tributary-slot)
			+--ro ts? uint16
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:underlay/tet:primary-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:underlay/tet:backup-path
			/tet:path-element/tet:type/tet:label/tet:label-hop
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw tpn? uint16
			+--rw tsg? identityref
			+--rw ts-list? string
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:label-restriction:
	Editor: Zheyu Fan		+--rw range-type? identityref
	<mailto:fanzheyu2@huawei.com>		+--rw tsg? identityref
			+--rw priority? uint8
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:label-restriction
			/tet:label-start/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
			augment /nw:networks/tet:te/tet:templates/tet:link-template
			/tet:te-link-attributes/tet:label-restriction/tet:label-end
			/tet:te-label/tet:technology:
			+--:(otn)
			+--rw (otn-label-type)?
			+--:(tributary-port)
			| +--rw tpn? uint16
			+--:(tributary-slot)
			+--rw ts? uint16
	Editor: Anurag Sharma		4. The YANG Code
	<mailto:ansha@google.com>
	Editor: Xufeng Liu		<CODE BEGINS> file "ietf-otn-topology.yang"
	<mailto:Xufeng_Liu@jabil.com>
	Editor: Sergio Belotti		module ietf-otn-topology {
	<mailto:sergio.belotti@nokia.com>		yang-version 1.1;
	Editor: Yunbin Xu		namespace "urn:ietf:params:xml:ns:yang:ietf-otn-topology";
	<mailto:xuyunbin@ritt.cn>		prefix "otntopo";
	Editor: Lei Wang		import ietf-network {
	<mailto:wangleiyj@chinamobile.com>		prefix "nw";
			}
	Editor: Oscar Gonzalez de Dios		import ietf-network-topology {
	<mailto:oscar.gonzalezdedios@telefonica.com>";		prefix "nt";
			}
	description		import ietf-te-topology {
	"This module defines a protocol independent Layer 1/ODU topology		prefix "tet";
	data model.";		}
			import ietf-otn-types {
			prefix "otn-types";
			}
	revision 2017-10-30 {		organization
	description		"IETF CCAMP Working Group";
	"Revision 0.5";		contact
	reference		"WG Web: <http://tools.ietf.org/wg/ccamp/>
	"draft-ietf-ccamp-otn-topo-yang-02.txt";		WG List: <mailto:ccamp@ietf.org>
	}
	/*		Editor: Haomian Zheng
	* Groupings		<mailto:zhenghaomian@huawei.com>
	*/
	grouping otn-link-attributes {
	description "link attributes for OTN";
	list available-odu-info {		Editor: Aihua Guo
	key "priority";		<mailto:aihuaguo@huawei.com>
	max-elements "8";
	description "List of ODU type and number on this link";
	leaf priority {
	type uint8 {
	range "0..7";
	}
	description "priority";
	}
	list odulist {
	key "odu-type";
	description
	"the list of available ODUs per priority level";
	leaf odu-type {
	type identityref {
	base otn-types:tributary-protocol-type;
	}
	description "the type of ODU";
	}
	leaf number {
	type uint16;
	description "the number of odu type supported";
	}
	leaf tpn-range {
	type string {
	pattern "([1-9][0-9]{0,3}(-[1-9][0-9]{0,3})?"
	+ "(,[1-9][0-9]{0,3}(-[1-9][0-9]{0,3})?)*)";
	}
	description
	"A list of available tributary port number range
	between 1 and 9999.
	For example 1-20,25,50-1000";
	reference "RFC 7139: GMPLS Signaling Extensions for Control
	of Evolving G.709 Optical Transport Networks";
	}
	}
	leaf ts-range {
	type string {
	pattern "([1-9][0-9]{0,3}(-[1-9][0-9]{0,3})?"
	+ "(,[1-9][0-9]{0,3}(-[1-9][0-9]{0,3})?)*)";
	}
	description
	"A list of available tributary slot range
	between 1 and 9999.
	For example 1-20,25,50-1000";
	reference "RFC 7139: GMPLS Signaling Extensions for Control
	of Evolving G.709 Optical Transport Networks";
	}
	}
	leaf tsg {
	type identityref {
	base otn-types:tributary-slot-granularity;
	}		Editor: Italo Busi
	description "Tributary slot granularity.";		<mailto:italo.busi@huawei.com>
	reference
	"G.709/Y.1331, February 2016: Interfaces for the
	Optical Transport Network (OTN)";
	}
	leaf distance {
	type uint32;
	description "distance in the unit of kilometers";
	}
	}
	grouping otn-tp-attributes {		Editor: Anurag Sharma
	description "tp attributes for OTN";		<mailto:ansha@google.com>
	list supported-payload-types {
	key "index";
	description
	"Supported payload types of a TP. The payload type is defined
	as the generalized PIDs in GMPLS.";
	leaf index {
	type uint16;
	description "payload type index";
	}
	leaf payload-type {
	type string;
	description "the payload type supported by this client tp";
	reference
	"http://www.iana.org/assignments/gmpls-sig-parameters
	/gmpls-sig-parameters.xhtml";
	}
	}
	}
	/*		Editor: Xufeng Liu
	* Data nodes		<mailto:Xufeng_Liu@jabil.com>
	*/
	augment "/nw:networks/nw:network/nw:network-types/"
	+ "tet:te-topology" {
	container otn-topology {
	presence "indicates a topology type of Optical Transport
	Network (OTN)-electrical layer.";
	description "otn topology type";
	}
	description "augment network types to include otn newtork";
	}
	augment "/nw:networks/nw:network/nt:link/tet:te/"		Editor: Sergio Belotti
	+ "tet:te-link-attributes" {		<mailto:sergio.belotti@nokia.com>
	when "../../../nw:network-types/tet:te-topology/"		Editor: Yunbin Xu
	+ "otntopo:otn-topology" {		<mailto:xuyunbin@ritt.cn>
	description "Augment only for otn network.";
	}
	description "Augment link configuration";
	uses otn-link-attributes;
	}
	augment "/nw:networks/nw:network/nw:node/nt:termination-point/"		Editor: Lei Wang
	+ "tet:te" {		<mailto:wangleiyj@chinamobile.com>
	when "../../../nw:network-types/tet:te-topology/"
	+ "otntopo:otn-topology" {
	description "Augment only for otn network";
	}
	description "OTN TP attributes config in ODU topology.";
	uses otn-tp-attributes;
	}
	}
	<CODE ENDS>		Editor: Oscar Gonzalez de Dios
			<mailto:oscar.gonzalezdedios@telefonica.com>";
	4. IANA Considerations		description
			"This module defines a protocol independent Layer 1/ODU topology
			data model.";
			revision 2018-06-07 {
			description
			"Revision 0.6";
			reference
			"draft-ietf-ccamp-otn-topo-yang-03";
			}
			/*
			* Groupings
			*/
			grouping otn-link-attributes {
			description "link attributes for OTN";
			leaf tsg {
			type identityref {
			base otn-types:tributary-slot-granularity;
			}
			description "Tributary slot granularity.";
			reference
			"G.709/Y.1331, February 2016: Interfaces for the
			Optical Transport Network (OTN)";
			}
			leaf distance {
			type uint32;
			description "distance in the unit of kilometers";
			}
			}
			grouping otn-tp-attributes {
			description "tp attributes for OTN";
			list supported-payload-types {
			key "index";
			description
			"Supported payload types of a TP. The payload type is defined
			as the generalized PIDs in GMPLS.";
			leaf index {
			type uint16;
			description "payload type index";
			}
			leaf payload-type {
			type string;
			description "the payload type supported by this client tp";
			reference
			"http://www.iana.org/assignments/gmpls-sig-parameters
			/gmpls-sig-parameters.xhtml";
			}
			}
			leaf client-facing {
			type boolean;
			default 'false';
			description
			"Indicating if it is a client-facing TP.";
			}
			}
			/*
			* Data nodes
			*/
			augment "/nw:networks/nw:network/nw:network-types/"
			+ "tet:te-topology" {
			container otn-topology {
			presence "indicates a topology type of Optical Transport
			Network (OTN)-electrical layer.";
			description "otn topology type";
			}
			description "augment network types to include otn newtork";
			}
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes" {
			when "../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment only for otn network.";
			}
			description "Augment link configuration";
			uses otn-link-attributes;
			}
			augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
			+ "tet:te" {
			when "../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment only for otn network";
			}
			description "OTN TP attributes config in ODU topology.";
			uses otn-tp-attributes;
			}
			/*
			* Augment TE bandwidth
			*/
			/* Augment maximum LSP bandwidth of link terminationpoint (LTP) */
			augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
			+ "tet:te/"
			+ "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-path-bandwidth;
			}
			}
			/* Augment bandwidth path constraints of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:path-constraints/tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment bandwidth path constraints of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:path-constraints/tet:te-bandwidth/tet:technology" {
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment bandwidth path constraints of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:path-constraints/tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment bandwidth path constraints of
			connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:path-constraints/tet:te-bandwidth/tet:technology" {
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment client bandwidth of tunnel termination point (TTP) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:client-layer-adaptation/tet:switching-capability/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment bandwidth path constraints of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/tet:path-constraints/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment bandwidth path constraints of
			local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/tet:path-constraints/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE bandwidth";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment maximum LSP bandwidth of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-path-bandwidth;
			}
			}
			/* Augment maximum bandwidth of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:max-link-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment maximum reservable bandwidth of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:max-resv-link-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment unreserved bandwidth of TE Link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:unreserved-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment maximum LSP bandwidth of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:interface-switching-capability/"
			+ "tet:max-lsp-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-path-bandwidth;
			}
			}
			/* Augment maximum bandwidth of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:max-link-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment maximum reservable bandwidth
			of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:max-resv-link-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment unreserved bandwidth of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:unreserved-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment maximum LSP bandwidth of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:interface-switching-capability/"
			+ "tet:max-lsp-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			/*
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			*/
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-path-bandwidth;
			}
			}
			/* Augment maximum bandwidth of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:max-link-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			/*
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			*/
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment maximum reservable bandwidth of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:max-resv-link-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			/*
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			*/
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/* Augment unreserved bandwidth of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:unreserved-bandwidth/"
			+ "tet:te-bandwidth/tet:technology" {
			/*
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "OTN TE bandwidth.";
			}
			*/
			description "OTN bandwidth.";
			case otn {
			uses otn-types:otn-link-bandwidth;
			}
			}
			/*
			* Augment TE label.
			*/
			/* Augment label restrictions of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:label-restriction" {
			when "../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:label-restriction/tet:label-start/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:label-restriction/tet:label-end/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path
			of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:underlay/tet:primary-path/tet:path-element/"
			+ "tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path of
			connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:underlay/tet:backup-path/tet:path-element/"
			+ "tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-exclude of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-exclude-objects/"
			+ "tet:route-object-exclude-object/"
			+ "tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-include of
			connectivity-matrices (added) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-include-objects/"
			+ "tet:route-object-include-object/"
			+ "tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of path-route of connectivity-matrices */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:path-properties/tet:path-route-objects/"
			+ "tet:path-route-object/tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology"{
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment ingress label restrictions of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:from/"
			+ "tet:label-restriction" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment ingress label restrictions start of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:from/"
			+ "tet:label-restriction/tet:label-start/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment ingress label restrictions end of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:from/"
			+ "tet:label-restriction/tet:label-end/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment egress label restrictions of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:to/"
			+ "tet:label-restriction" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment egress label restrictions start of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:to/"
			+ "tet:label-restriction/tet:label-start/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment egress label restrictions end of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:to/"
			+ "tet:label-restriction/tet:label-end/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:underlay/tet:primary-path/tet:path-element/"
			+ "tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:underlay/tet:backup-path/tet:path-element/"
			+ "tet:type/tet:label/tet:label-hop/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-exclude of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:optimizations/"
			+ "tet:algorithm/tet:metric/tet:optimization-metric/"
			+ "tet:explicit-route-exclude-objects/"
			+ "tet:route-object-exclude-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-include of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/tet:optimizations/"
			+ "tet:algorithm/tet:metric/tet:optimization-metric/"
			+ "tet:explicit-route-include-objects/"
			+ "tet:route-object-include-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of path-route of connectivity-matrix */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:te-node-attributes/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:path-properties/tet:path-route-objects/"
			+ "tet:path-route-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label restrictions of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:connectivity-matrices/tet:label-restriction" {
			when "../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:connectivity-matrices/tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			when "../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:connectivity-matrices/tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			when "../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-exclude of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-exclude-objects/"
			+ "tet:route-object-exclude-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-include
			of connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-include-objects/"
			+ "tet:route-object-include-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of path-route of
			connectivity-matrices information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:path-properties/tet:path-route-objects/"
			+ "tet:path-route-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment ingress label restrictions
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:from/tet:label-restriction" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment ingress label restrictions start
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:from/tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment ingress label restrictions end
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:from/tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment egress label restrictions of
			connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:to/tet:label-restriction" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment egress label restrictions start
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:to/tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment egress label restrictions end
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:to/tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			when "../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-exclude
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-exclude-objects/"
			+ "tet:route-object-exclude-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-include
			of connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-include-objects/"
			+ "tet:route-object-include-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of path-route of
			connectivity-matrix information-source */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:information-source-entry/tet:connectivity-matrices/"
			+ "tet:connectivity-matrix/"
			+ "tet:path-properties/tet:path-route-objects/"
			+ "tet:path-route-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label restrictions
			of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:label-restriction" {
			when "../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:label-restriction/tet:label-start/"
			+ "tet:te-label/tet:technology" {
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:label-restriction/tet:label-end/"
			+ "tet:te-label/tet:technology"{
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path
			of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path
			of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-exclude of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-exclude-objects/"
			+ "tet:route-object-exclude-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-include of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-include-objects/"
			+ "tet:route-object-include-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of path-route of local-link-connectivities */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:path-properties/tet:path-route-objects/"
			+ "tet:path-route-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label restrictions of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:label-restriction" {
			when "../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			when "../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			when "../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path
			of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path
			of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-exclude
			of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-exclude-objects/"
			+ "tet:route-object-exclude-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of route-include
			of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:optimizations/tet:algorithm/tet:metric/"
			+ "tet:optimization-metric/"
			+ "tet:explicit-route-include-objects/"
			+ "tet:route-object-include-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of path-route of local-link-connectivity (LLC) */
			augment "/nw:networks/nw:network/nw:node/tet:te/"
			+ "tet:tunnel-termination-point/"
			+ "tet:local-link-connectivities/"
			+ "tet:local-link-connectivity/"
			+ "tet:path-properties/tet:path-route-objects/"
			+ "tet:path-route-object/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay primary path of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			when "../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label restrictions of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:label-restriction" {
			when "../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of TE link */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:te-link-attributes/"
			+ "tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:label-restriction" {
			when "../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of TE link information-source */
			augment "/nw:networks/nw:network/nt:link/tet:te/"
			+ "tet:information-source-entry/"
			+ "tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			when "../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label hop of underlay primary path of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			/*
			when "../../../../../../../../../../../../"
			+ "nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			*/
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label hop of underlay backup path of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
			+ "tet:label/tet:label-hop/tet:te-label/tet:technology" {
			/*
			when "../../../../../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			*/
			description "OTN label.";
			case otn {
			uses otn-types:otn-path-label;
			}
			}
			/* Augment label restrictions of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:label-restriction" {
			/*
			when "../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			*/
			description "OTN label.";
			uses otn-types:otn-label-restriction;
			}
			/* Augment label restrictions start of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:label-restriction/"
			+ "tet:label-start/tet:te-label/tet:technology" {
			/*
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			*/
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			/* Augment label restrictions end of TE link template */
			augment "/nw:networks/tet:te/tet:templates/"
			+ "tet:link-template/tet:te-link-attributes/"
			+ "tet:label-restriction/"
			+ "tet:label-end/tet:te-label/tet:technology" {
			/*
			when "../../../../../../../../nw:network-types/tet:te-topology/"
			+ "otntopo:otn-topology" {
			description "Augment OTN TE label";
			}
			*/
			description "OTN label.";
			case otn {
			uses otn-types:otn-link-label;
			}
			}
			}
			<CODE ENDS>
			5. IANA Considerations
	TBD.		TBD.
	5. Manageability Considerations		6. Manageability Considerations
	TBD.		TBD.
	6. Security Considerations		7. Security Considerations
	The data following the model defined in this document is exchanged		The data following the model defined in this document is exchanged
	via, for example, the interface between an orchestrator and a		via, for example, the interface between an orchestrator and a
	transport network controller. The security concerns mentioned in		transport network controller. The security concerns mentioned in
	[I-D.ietf-teas-yang-te-topo] for using ietf-te-topology.yang model		[I-D.ietf-teas-yang-te-topo] for using ietf-te-topology.yang model
	also applies to this document.		also applies to this document.
	The YANG module defined in this document can be accessed via the		The YANG module defined in this document can be accessed via the
	RESTCONF protocol defined in [RFC8040], or maybe via the NETCONF		RESTCONF protocol defined in [RFC8040], or maybe via the NETCONF
	protocol [RFC6241].		protocol [RFC6241].
	skipping to change at page 10, line 8 ¶		skipping to change at page 55, line 5 ¶
	There are a number of data nodes defined in the YANG module which are		There are a number of data nodes defined in the YANG module which are
	writable/creatable/deletable (i.e., config true, which is the		writable/creatable/deletable (i.e., config true, which is the
	default). These data nodes may be considered sensitive or vulnerable		default). These data nodes may be considered sensitive or vulnerable
	in some network environments. Write operations (e.g., POST) to these		in some network environments. Write operations (e.g., POST) to these
	data nodes without proper protection can have a negative effect on		data nodes without proper protection can have a negative effect on
	network operations.		network operations.
	Editors note: to list specific subtrees and data nodes and their		Editors note: to list specific subtrees and data nodes and their
	sensitivity/vulnerability.		sensitivity/vulnerability.
	7. Acknowledgements		8. Acknowledgements
	We would like to thank Igor Bryskin, Zhe Liu, and Daniele Ceccarelli		We would like to thank Igor Bryskin, Zhe Liu, and Daniele Ceccarelli
	for their comments and discussions.		for their comments and discussions.
	8. Contributors		9. Contributors
	Baoquan Rao		Baoquan Rao
	Huawei Technologies		Huawei Technologies
	Email: raobaoquan@huawei.com		Email: raobaoquan@huawei.com
	Xian Zhang		Xian Zhang
	Huawei Technologies		Huawei Technologies
	Email: zhang.xian@huawei.com		Email: zhang.xian@huawei.com
	Huub van Helvoort		Huub van Helvoort
	skipping to change at page 10, line 44 ¶		skipping to change at page 55, line 41 ¶
	Email: liyunbo@chinamobile.com		Email: liyunbo@chinamobile.com
	Dieter Beller		Dieter Beller
	Nokia		Nokia
	Email: dieter.beller@nokia.com		Email: dieter.beller@nokia.com
	Yanlei Zheng		Yanlei Zheng
	China Unicom		China Unicom
	Email: zhengyl@dimpt.com		Email: zhengyl@dimpt.com
	9. References		10. References
	9.1. Normative References		10.1. Normative References
	[I-D.ietf-ccamp-otn-tunnel-model]		[I-D.ietf-ccamp-otn-tunnel-model]
	zhenghaomian@huawei.com, z., Fan, Z., Sharma, A., Rao, R.,		Zheng, H., Fan, Z., Sharma, A., Rao, R.,
	Belotti, S., Lopezalvarez, V., and Y. Li, "OTN Tunnel YANG		Belotti, S., Lopezalvarez, V., Li, Y., and Y. Xu, "OTN
	Model", draft-ietf-ccamp-otn-tunnel-model-00 (work in		Tunnel YANG Model", draft-ietf-ccamp-otn-tunnel-model-01
	progress), July 2017.		(work in progress), October 2017.
	[I-D.ietf-teas-yang-te-topo]		[I-D.ietf-teas-yang-te-topo]
	Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and		Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and
	O. Dios, "YANG Data Model for Traffic Engineering (TE)		O. Dios, "YANG Data Model for Traffic Engineering (TE)
	Topologies", draft-ietf-teas-yang-te-topo-13 (work in		Topologies", draft-ietf-teas-yang-te-topo-16 (work in
	progress), October 2017.		progress), June 2018.
	[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,		[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
	and A. Bierman, Ed., "Network Configuration Protocol		and A. Bierman, Ed., "Network Configuration Protocol
	(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,		(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
	<https://www.rfc-editor.org/info/rfc6241>.		<https://www.rfc-editor.org/info/rfc6241>.
	[RFC7138] Ceccarelli, D., Ed., Zhang, F., Belotti, S., Rao, R., and		[RFC7138] Ceccarelli, D., Ed., Zhang, F., Belotti, S., Rao, R., and
	J. Drake, "Traffic Engineering Extensions to OSPF for		J. Drake, "Traffic Engineering Extensions to OSPF for
	GMPLS Control of Evolving G.709 Optical Transport		GMPLS Control of Evolving G.709 Optical Transport
	Networks", RFC 7138, DOI 10.17487/RFC7138, March 2014,		Networks", RFC 7138, DOI 10.17487/RFC7138, March 2014,
	<https://www.rfc-editor.org/info/rfc7138>.		<https://www.rfc-editor.org/info/rfc7138>.
	[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",		[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
	RFC 7950, DOI 10.17487/RFC7950, August 2016,		RFC 7950, DOI 10.17487/RFC7950, August 2016,
	<https://www.rfc-editor.org/info/rfc7950>.		<https://www.rfc-editor.org/info/rfc7950>.
	[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF		[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
	Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,		Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
	<https://www.rfc-editor.org/info/rfc8040>.		<https://www.rfc-editor.org/info/rfc8040>.
	9.2. Informative References		10.2. Informative References
			[I-D.ietf-ccamp-flexigrid-yang]
			Madrid, U., Perdices, D., Lopezalvarez, V., Dios, O.,
			King, D., Lee, Y., and G. Galimberti, "YANG data model for
			Flexi-Grid Optical Networks", draft-ietf-ccamp-flexigrid-
			yang-00 (work in progress), February 2018.
	[I-D.ietf-ccamp-wson-yang]		[I-D.ietf-ccamp-wson-yang]
	Lee, Y., Dhody, D., Zhang, X., Guo, A., Lopezalvarez, V.,		Lee, Y., Dhody, D., Zhang, X., Guo, A., Lopezalvarez, V.,
	King, D., Yoon, B., and R. Vilata, "A Yang Data Model for		King, D., Yoon, B., and R. Vilata, "A Yang Data Model for
	WSON Optical Networks", draft-ietf-ccamp-wson-yang-08		WSON Optical Networks", draft-ietf-ccamp-wson-yang-10
	(work in progress), October 2017.		(work in progress), February 2018.
	[I-D.ietf-netmod-yang-tree-diagrams]		[I-D.ietf-netmod-yang-tree-diagrams]
	Bjorklund, M. and L. Berger, "YANG Tree Diagrams", draft-		Bjorklund, M. and L. Berger, "YANG Tree Diagrams", draft-
	ietf-netmod-yang-tree-diagrams-02 (work in progress),		ietf-netmod-yang-tree-diagrams-06 (work in progress),
	October 2017.		February 2018.
	[I-D.vergara-ccamp-flexigrid-yang]
	Madrid, U., Perdices, D., Lopezalvarez, V., Dios, O.,
	King, D., Lee, Y., and G. Galimberti, "YANG data model for
	Flexi-Grid Optical Networks", draft-vergara-ccamp-
	flexigrid-yang-05 (work in progress), July 2017.
	[I-D.zhang-teas-actn-yang]		[I-D.ietf-teas-actn-yang]
	Lee, Y., zhenghaomian@huawei.com, z., Yoon, B., Dios, O.,		Lee, Y., Zheng, H., Ceccarelli, D.,
	Shin, J., and S. Belotti, "Applicability of YANG models		Yoon, B., and S. Belotti, "Applicability of YANG models
	for Abstraction and Control of Traffic Engineered		for Abstraction and Control of Traffic Engineered
	Networks", draft-zhang-teas-actn-yang-05 (work in		Networks", draft-ietf-teas-actn-yang-01 (work in
	progress), June 2017.		progress), February 2018.
	[RFC7062] Zhang, F., Ed., Li, D., Li, H., Belotti, S., and D.		[RFC7062] Zhang, F., Ed., Li, D., Li, H., Belotti, S., and D.
	Ceccarelli, "Framework for GMPLS and PCE Control of G.709		Ceccarelli, "Framework for GMPLS and PCE Control of G.709
	Optical Transport Networks", RFC 7062,		Optical Transport Networks", RFC 7062,
	DOI 10.17487/RFC7062, November 2013,		DOI 10.17487/RFC7062, November 2013,
	<https://www.rfc-editor.org/info/rfc7062>.		<https://www.rfc-editor.org/info/rfc7062>.
	Authors' Addresses		Authors' Addresses
	Haomian Zheng		Haomian Zheng
	Huawei Technologies		Huawei Technologies
	F3 R&D Center, Huawei Industrial Base, Bantian, Longgang District		F3 R&D Center, Huawei Industrial Base, Bantian, Longgang District
	Shenzhen, Guangdong 518129		Shenzhen, Guangdong 518129
	P.R.China		P.R.China
	Email: zhenghaomian@huawei.com		Email: zhenghaomian@huawei.com
	Zheyu Fan		Aihua Guo
	Huawei Technologies		Huawei Technologies
	F3 R&D Center, Huawei Industrial Base, Bantian, Longgang District		12007 Sunrise Valley Drive, Suite 325
	Shenzhen, Guangdong 518129		Reston, VA 20171
	P.R.China		U.S.A
	Email: fanzheyu2@huawei.com		Email: aihuaguo@huawei.com
			Italo Busi
			Huawei Technologies
			HUAWEI TECHNOLOGIES ITALIA Srl Centro Direzionale Milano 2
			Milan, Milan 20090
			Italy
			Email: Italo.Busi@huawei.com
	Anurag Sharma		Anurag Sharma
	Google		Google
	1600 Amphitheatre Parkway		1600 Amphitheatre Parkway
	Mountain View, CA 94043		Mountain View, CA 94043
	Email: ansha@google.com		Email: ansha@google.com
	Xufeng Liu		Xufeng Liu
	Jabil		Jabil
	Email: Xufeng_Liu@jabil.com		Email: Xufeng_Liu@jabil.com
	Sergio Belotti		Sergio Belotti
	Nokia		Nokia
	Email: sergio.belotti@nokia.com		Email: sergio.belotti@nokia.com
	Yunbin Xu		Yunbin Xu
	CAICT		CAICT
	Email: xuyunbin@ritt.cn		Email: xuyunbin@ritt.cn
End of changes. 60 change blocks.
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