< draft-ietf-lime-yang-connectionless-oam-methods-01.txt		draft-ietf-lime-yang-connectionless-oam-methods-02.txt >
	Network Working Group D. Kumar		Network Working Group D. Kumar
	Internet-Draft Cisco		Internet-Draft Cisco
	Intended status: Standards Track M. Wang		Intended status: Standards Track M. Wang
	Expires: August 27, 2017 Q. Wu		Expires: November 16, 2017 Q. Wu
	Huawei		Huawei
	R. Rahman		R. Rahman
	S. Raghavan		S. Raghavan
	Cisco		Cisco
	February 23, 2017		May 15, 2017
	Retrieval Methods YANG Data Model for Connectionless Operations,		Retrieval Methods YANG Data Model for Connectionless Operations,
	Administration, and Maintenance(OAM) protocols		Administration, and Maintenance(OAM) protocols
	draft-ietf-lime-yang-connectionless-oam-methods-01		draft-ietf-lime-yang-connectionless-oam-methods-02
	Abstract		Abstract
	This document presents a retrieval method YANG Data model for		This document presents a retrieval method YANG Data model for
	connectionless OAM protocols. It provides a technology-independent		connectionless OAM protocols. It provides a technology-independent
	RPC commands for connectionless OAM protocols. The retrieval methods		RPC commands for connectionless OAM protocols. The retrieval methods
	model presented here can be extended to include technology specific		model presented here can be extended to include technology specific
	details. This is leading to uniformity between OAM protocols and		details. This is leading to uniformity between OAM protocols and
	support both nested OAM workflows (i.e., performing OAM functions at		support both nested OAM workflows (i.e., performing OAM functions at
	different levels through a unified interface) and interactive OAM		different levels through a unified interface) and interactive OAM
	skipping to change at page 1, line 44 ¶		skipping to change at page 1, line 44 ¶
	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 http://datatracker.ietf.org/drafts/current/.		Drafts is at http://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 August 27, 2017.		This Internet-Draft will expire on November 16, 2017.
	Copyright Notice		Copyright Notice
	Copyright (c) 2017 IETF Trust and the persons identified as the		Copyright (c) 2017 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
	(http://trustee.ietf.org/license-info) in effect on the date of		(http://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. Conventions used in this document . . . . . . . . . . . . . . 3		2. Conventions used in this document . . . . . . . . . . . . . . 3
	2.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3		2.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
	2.2. Tree Diagrams . . . . . . . . . . . . . . . . . . . . . . 4		2.2. Tree Diagrams . . . . . . . . . . . . . . . . . . . . . . 4
	3. Overview of the Connectionless OAM retrieval methods Model . 4		3. Overview of the Connectionless OAM retrieval methods Model . 5
	3.1. RPC definitions . . . . . . . . . . . . . . . . . . . . . 5		3.1. RPC definitions . . . . . . . . . . . . . . . . . . . . . 5
	3.2. OAM Retrieval Methods Hierarchy . . . . . . . . . . . . . 8		3.2. OAM Retrieval Methods Hierarchy . . . . . . . . . . . . . 8
	4. OAM Retrieval Methods YANG Module . . . . . . . . . . . . . . 19		4. OAM Retrieval Methods YANG Module . . . . . . . . . . . . . . 9
	5. Security Considerations . . . . . . . . . . . . . . . . . . . 34		5. Security Considerations . . . . . . . . . . . . . . . . . . . 13
	6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 34		6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 13
	7. References . . . . . . . . . . . . . . . . . . . . . . . . . 34		7. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
	7.1. Normative References . . . . . . . . . . . . . . . . . . 35		7.1. Normative References . . . . . . . . . . . . . . . . . . 14
	7.2. Informative References . . . . . . . . . . . . . . . . . 36		7.2. Informative References . . . . . . . . . . . . . . . . . 15
	Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 36		Appendix A. Appendix . . . . . . . . . . . . . . . . . . . . . . 15
			A.1. OAM Retrieval Persistent Methods YANG Module . . . . . . 16
			Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 25
	1. Introduction		1. Introduction
	Operations, Administration, and Maintenance (OAM) are important		Operations, Administration, and Maintenance (OAM) are important
	networking functions that allow operators to:		networking functions that allow operators to:
	1. Monitor reachability of destinations (Reachability Verification,		1. Monitor reachability of destinations (Reachability Verification,
	Continuity Check).		Continuity Check).
	2. Troubleshoot failures (Fault verification and localization).		2. Troubleshoot failures (Fault verification and localization).
	skipping to change at page 5, line 32 ¶		skipping to change at page 5, line 41 ¶
	[RFC4379]), the base building block should be extended with		[RFC4379]), the base building block should be extended with
	corresponding technology specific parameters. To facilitate this and		corresponding technology specific parameters. To facilitate this and
	for future enhancements to data retrieval methods, the RPCs are		for future enhancements to data retrieval methods, the RPCs are
	captured under a separate module.		captured under a separate module.
	The generic 'path-discovery-data' and 'continuity-check-data' are		The generic 'path-discovery-data' and 'continuity-check-data' are
	used as data outputs from the different RPCs described in the		used as data outputs from the different RPCs described in the
	document. Similar methods including other RPCs can retrieve the data		document. Similar methods including other RPCs can retrieve the data
	using the same data model.		using the same data model.
	The persistent method RPCs are commands to trigger persistent
	continuity check or path discovery OAM while specifying the options
	for data-export from the device. Internet Protocol Flow Information
	Export (IPFIX) [RFC7011] or yang-push [I-D.ietf-netconf-yang-push].
	are currently outlined here as data export options and more can be
	added in future. It should be noted that the persistent methods are
	used to trigger create, modify and delete the persistent state
	associated with the data export options. The data export specific
	configurations are beyond the scope of this document.
	rpc continuity-check {		rpc continuity-check {
	if-feature coam:continuity-check;		if-feature coam:continuity-check;
	description		description
	"Generates continuity-check as per RFC7276.";		"Generates continuity-check as per RFC7276.";
	input {		input {
	container destination-tp {		container destination-tp {
	uses coam:tp-address;		uses coam:tp-address;
	description		description
	"destination test point.";		"destination test point.";
	}		}
	skipping to change at page 8, line 37 ¶		skipping to change at page 9, line 5 ¶
	}		}
	}		}
	Snippet of data hierarchy related to RPC calls		Snippet of data hierarchy related to RPC calls
	3.2. OAM Retrieval Methods Hierarchy		3.2. OAM Retrieval Methods Hierarchy
	The complete data hierarchy related to the Connectionless OAM		The complete data hierarchy related to the Connectionless OAM
	Retrieval Methods YANG model is presented below.		Retrieval Methods YANG model is presented below.
	module: ietf-connectionless-oam-methods		module: ietf-connectionless-oam-methods
			rpcs:
	rpcs:		+---x continuity-check {coam:continuity-check}?
	+---x continuity-check {coam:continuity-check}?		| +---w input
	| +---w input		| | +---w destination-tp
	| | +---w destination-tp		| | +---w source-interface? if:interface-ref
	| | | +---w tp-location-type-value? identityref		| | +---w outbound-interface? if:interface-ref
	| | | +---w (tp-address)?		| | +---w count? uint32
	| | | +--:(mac-address)		| | +---w vrf? coam:routing-instance-ref
	| | | | +---w mac-address? yang:mac-address		| | +---w ttl? uint8
	| | | +--:(ipv4-address)		| | +---w packet-size? uint32
	| | | | +---w ipv4-address? inet:ipv4-address		| +--ro output
	| | | +--:(ipv6-address)		| +--ro error-code-list* [response-index]
	| | | | +---w ipv6-address? inet:ipv6-address		| +--ro response-index uint32
	| | | +--:(tp-attribute)		| +--ro status-code? int32
	| | | | +---w tp-attribute-type? fec-type		| +--ro status-sub-code? uint8
	| | | | +---w (tp-attribute-value)?		+---x path-discovery {coam:path-discovery}?
	| | | | +--:(ip-prefix)		+---w input
	| | | | | +---w ip-prefix? inet:ip-prefix		| +---w destination-tp
	| | | | +--:(bgp)		| +---w source-interface? if:interface-ref
	| | | | | +---w bgp inet:ip-prefix		| +---w outbound-interface? if:interface-ref
	| | | | +--:(tunnel)		| +---w vrf? coam:routing-instance-ref
	| | | | | +---w tunnel-interface? uint32		| +---w max-ttl? uint8
	| | | | +--:(pw)		+--ro output
	| | | | | +---w remote-pe-address? inet:ip-address		+--ro response-list* [response-index]
	| | | | | +---w pw-id? uint32		+--ro response-index uint32
	| | | | +--:(vpls)		+--ro status-code? int32
	| | | | | +---w route-distinguisher? uint32		+--ro status-sub-code? uint8
	| | | | | +---w sender-ve-id? uint32
	| | | | | +---w receiver-ve-id? uint32
	| | | | +--:(mpls-mldp)
	| | | | +---w (root-address)?
	| | | | +--:(ip-address)
	| | | | | +---w source-address? inet:ip-address
	| | | | | +---w group-ip-address? IP-Multicast
	-Group-Address
	| | | | +--:(vpn)
	| | | | | +---w as-number inet:as-number
	| | | | +--:(global-id)
	| | | | +---w lsp-id? string
	| | | +--:(system-info)
	| | | +---w system-id? router-id
	| | +---w session-type-enum? enumeration
	| | +---w source-interface? if:interface-ref
	| | +---w outbound-interface? if:interface-ref
	| | +---w count? uint32
	| | +---w vrf? coam:routing-instance-ref
	| | +---w ttl? uint8
	| | +---w packet-size? uint32
	| +--ro output
	| +--ro error-code-list* [response-index]
	| | +--ro response-index uint32
	| | +--ro status-code? int32
	| | +--ro status-sub-code? uint8
	| +--ro src-test-point
	| | +--ro vrf? routing-instance-ref
	| | +--ro tp-location-type-value? identityref
	| | +--ro (tp-address)?
	| | | +--:(mac-address)
	| | | | +--ro mac-address? yang:mac-address
	| | | +--:(ipv4-address)
	| | | | +--ro ipv4-address? inet:ipv4-address
	| | | +--:(ipv6-address)
	| | | | +--ro ipv6-address? inet:ipv6-address
	| | | +--:(tp-attribute)
	| | | | +--ro tp-attribute-type? fec-type
	| | | | +--ro (tp-attribute-value)?
	| | | | +--:(ip-prefix)
	| | | | | +--ro ip-prefix? inet:ip-prefix
	| | | | +--:(bgp)
	| | | | | +--ro bgp? inet:ip-prefix
	| | | | +--:(tunnel)
	| | | | | +--ro tunnel-interface? uint32
	| | | | +--:(pw)
	| | | | | +--ro remote-pe-address? inet:ip-address
	| | | | | +--ro pw-id? uint32
	| | | | +--:(vpls)
	| | | | | +--ro route-distinguisher? uint32
	| | | | | +--ro sender-ve-id? uint32
	| | | | | +--ro receiver-ve-id? uint32
	| | | | +--:(mpls-mldp)
	| | | | +--ro (root-address)?
	| | | | +--:(ip-address)
	| | | | | +--ro source-address? inet:ip-address
	| | | | | +--ro group-ip-address? IP-Multicast
	-Group-Address
	| | | | +--:(vpn)
	| | | | | +--ro as-number? inet:as-number
	| | | | +--:(global-id)
	| | | | +--ro lsp-id? string
	| | | +--:(system-info)
	| | | +--ro system-id? router-id
	| | +--ro egress-intf-name? if:interface-ref
	| +--ro dest-test-point
	| | +--ro vrf? routing-instance-ref
	| | +--ro tp-location-type-value? identityref
	| | +--ro (tp-address)?
	| | | +--:(mac-address)
	| | | | +--ro mac-address? yang:mac-address
	| | | +--:(ipv4-address)
	| | | | +--ro ipv4-address? inet:ipv4-address
	| | | +--:(ipv6-address)
	| | | | +--ro ipv6-address? inet:ipv6-address
	| | | +--:(tp-attribute)
	| | | | +--ro tp-attribute-type? fec-type
	| | | | +--ro (tp-attribute-value)?
	| | | | +--:(ip-prefix)
	| | | | | +--ro ip-prefix inet:ip-prefix
	| | | | +--:(bgp)
	| | | | | +--ro bgp? inet:ip-prefix
	| | | | +--:(tunnel)
	| | | | | +--ro tunnel-interface? uint32
	| | | | +--:(pw)
	| | | | | +--ro remote-pe-address? inet:ip-address
	| | | | | +--ro pw-id? uint32
	| | | | +--:(vpls)
	| | | | | +--ro route-distinguisher? uint32
	| | | | | +--ro sender-ve-id? uint32
	| | | | | +--ro receiver-ve-id? uint32
	| | | | +--:(mpls-mldp)
	| | | | +--ro (root-address)?
	| | | | +--:(ip-address)
	| | | | | +--ro source-address? inet:ip-address
	| | | | | +--ro group-ip-address? IP-Multicast-
	Group-Address
	| | | | +--:(vpn)
	| | | | | +--ro as-number? inet:as-number
	| | | | +--:(global-id)
	| | | | +--ro lsp-id? string
	| | | +--:(system-info)
	| | | +--ro system-id? router-id
	| | +--ro ingress-intf-name? if:interface-ref
	| +--ro sequence-number? uint64
	| +--ro hop-cnt? uint8
	| +--ro session-packet-statistics
	| | +--ro rx-packet-count? uint32
	| | +--ro tx-packet-count? uint32
	| | +--ro rx-bad-packet? uint32
	| | +--ro tx-packet-failed? uint32
	| +--ro session-error-statistics
	| | +--ro packet-drops-count? uint32
	| | +--ro packet-reorder-count? uint32
	| | +--ro packets-out-of-seq-count? uint32
	| | +--ro packets-dup-count? uint32
	| +--ro session-delay-statistics
	| | +--ro time-resolution-value? identityref
	| | +--ro min-delay-value? uint32
	| | +--ro max-delay-value? uint32
	| | +--ro average-delay-value? uint32
	| +--ro session-jitter-statistics
	| +--ro time-resolution-value? identityref
	| +--ro min-jitter-value? uint32
	| +--ro max-jitter-value? uint32
	| +--ro average-jitter-value? uint32
	+---x cc-persistent-create {coam:continuity-check}?
	| +---w input
	| | +---w destination-tp
	| | | +---w tp-location-type-value? identityref
	| | | +---w (tp-address)?
	| | | +--:(mac-address)
	| | | | +---w mac-address? yang:mac-address
	| | | +--:(ipv4-address)
	| | | | +---w ipv4-address? inet:ipv4-address
	| | | +--:(ipv6-address)
	| | | | +---w ipv6-address? inet:ipv6-address
	| | | +--:(tp-attribute)
	| | | | +---w tp-attribute-type? fec-type
	| | | | +---w (tp-attribute-value)?
	| | | | +--:(ip-prefix)
	| | | | | +---w ip-prefix? inet:ip-prefix
	| | | | +--:(bgp)
	| | | | | +---w bgp? inet:ip-prefix
	| | | | +--:(tunnel)
	| | | | | +---w tunnel-interface? uint32
	| | | | +--:(pw)
	| | | | | +---w remote-pe-address? inet:ip-address
	| | | | | +---w pw-id? uint32
	| | | | +--:(vpls)
	| | | | | +---w route-distinguisher? uint32
	| | | | | +---w sender-ve-id? uint32
	| | | | | +---w receiver-ve-id? uint32
	| | | | +--:(mpls-mldp)
	| | | | +---w (root-address)?
	| | | | +--:(ip-address)
	| | | | | +---w source-address? inet:ip-address
	| | | | | +---w group-ip-address? IP-Multicast-
	Group-Address
	| | | | +--:(vpn)
	| | | | | +---w as-number? inet:as-number
	| | | | +--:(global-id)
	| | | | +---w lsp-id? string
	| | | +--:(system-info)
	| | | +---w system-id? router-id
	| | +---w session-type-enum? enumeration
	| | +---w source-interface? if:interface-ref
	| | +---w outbound-interface? if:interface-ref
	| | +---w vrf? coam:routing-instance-ref
	| | +---w ttl? uint8
	| | +---w data-export-method? export-method
	| | +---w (cc-trigger)?
	| | +--:(periodic)
	| | | +---w period? yang:timeticks
	| | | +---w start-time? yang:date-and-time
	| | +--:(on-change)
	| | +---w all-data-on-start? boolean
	| | +---w excluded-change* change-type
	| +--ro output
	| +--ro error-code-list* [response-index]
	| | +--ro response-index uint32
	| | +--ro status-code? int32
	| | +--ro status-sub-code? uint8
	| +--ro cc-persistent-id? string
	+---x cc-persistent-modify {coam:continuity-check}?
	| +---w input
	| | +---w cc-persistent-id? string
	| | +---w data-export-method? export-method
	| | +---w (cc-trigger)?
	| | +--:(periodic)
	| | | +---w period? yang:timeticks
	| | | +---w start-time? yang:date-and-time
	| | +--:(on-change)
	| | +---w all-data-on-start? boolean
	| | +---w excluded-change* change-type
	| +--ro output
	| +--ro error-code-list* [response-index]
	| | +--ro response-index uint32
	| | +--ro status-code? int32
	| | +--ro status-sub-code? uint8
	| +--ro cc-persistent-id? string
	+---x cc-persistent-delete {coam:continuity-check}?
	| +---w input
	| | +---w cc-persistent-id? string
	| +--ro output
	| +--ro error-code-list* [response-index]
	| +--ro response-index uint32
	| +--ro status-code? int32
	| +--ro status-sub-code? uint8
	+---x path-discovery
	| +---w input
	| | +---w destination-tp
	| | | +---w tp-location-type-value? identityref
	| | | +---w (tp-address)?
	| | | +--:(mac-address)
	| | | | +---w mac-address? yang:mac-address
	| | | +--:(ipv4-address)
	| | | | +---w ipv4-address? inet:ipv4-address
	| | | +--:(ipv6-address)
	| | | | +---w ipv6-address? inet:ipv6-address
	| | | +--:(tp-attribute)
	| | | | +---w tp-attribute-type? fec-type
	| | | | +---w (tp-attribute-value)?
	| | | | +--:(ip-prefix)
	| | | | | +---w ip-prefix? inet:ip-prefix
	| | | | +--:(bgp)
	| | | | | +---w bgp inet:ip-prefix
	| | | | +--:(tunnel)
	| | | | | +---w tunnel-interface? uint32
	| | | | +--:(pw)
	| | | | | +---w remote-pe-address? inet:ip-address
	| | | | | +---w pw-id? uint32
	| | | | +--:(vpls)
	| | | | | +---w route-distinguisher? uint32
	| | | | | +---w sender-ve-id? uint32
	| | | | | +---w receiver-ve-id? uint32
	| | | | +--:(mpls-mldp)
	| | | | +---w (root-address)?
	| | | | +--:(ip-address)
	| | | | | +---w source-address? inet:ip-address
	| | | | | +---w group-ip-address? IP-Multicast
	-Group-Address
	| | | | +--:(vpn)
	| | | | | +---w as-number? inet:as-number
	| | | | +--:(global-id)
	| | | | +---w lsp-id? string
	| | | +--:(system-info)
	| | | +---w system-id? router-id
	| | +---w session-type-enum? enumeration
	| | +---w source-interface? if:interface-ref
	| | +---w outbound-interface? if:interface-ref
	| | +---w vrf? coam:routing-instance-ref
	| | +---w max-ttl? uint8
	| +--ro output
	| +--ro response-list* [response-index]
	| | +--ro response-index uint32
	| | +--ro status-code? int32
	| | +--ro status-sub-code? uint8
	| +--ro src-test-point
	| | +--ro vrf? routing-instance-ref
	| | +--ro tp-location-type-value? identityref
	| | +--ro (tp-address)?
	| | +--:(mac-address)
	| | | +--ro mac-address? yang:mac-address
	| | +--:(ipv4-address)
	| | | +--ro ipv4-address? inet:ipv4-address
	| | +--:(ipv6-address)
	| | | +--ro ipv6-address? inet:ipv6-address
	| | +--:(tp-attribute)
	| | | +--ro tp-attribute-type? fec-type
	| | | +--ro (tp-attribute-value)?
	| | | +--:(ip-prefix)
	| | | | +--ro ip-prefix? inet:ip-prefix
	| | | +--:(bgp)
	| | | | +--ro bgp? inet:ip-prefix
	| | | +--:(tunnel)
	| | | | +--ro tunnel-interface? uint32
	| | | +--:(pw)
	| | | | +--ro remote-pe-address? inet:ip-address
	| | | | +--ro pw-id? uint32
	| | | +--:(vpls)
	| | | | +--ro route-distinguisher? uint32
	| | | | +--ro sender-ve-id? uint32
	| | | | +--ro receiver-ve-id? uint32
	| | | +--:(mpls-mldp)
	| | | +--ro (root-address)?
	| | | +--:(ip-address)
	| | | | +--ro source-address? inet:ip-address
	| | | | +--ro group-ip-address? IP-Multicast
	-Group-Address
	| | | +--:(vpn)
	| | | | +--ro as-number? inet:as-number
	| | | +--:(global-id)
	| | | +--ro lsp-id? string
	| | +--:(system-info)
	| | +--ro system-id? router-id
	| +--ro dest-test-point
	| | +--ro vrf? routing-instance-ref
	| | +--ro tp-location-type-value? identityref
	| | +--ro (tp-address)?
	| | +--:(mac-address)
	| | | +--ro mac-address? yang:mac-address
	| | +--:(ipv4-address)
	| | | +--ro ipv4-address? inet:ipv4-address
	| | +--:(ipv6-address)
	| | | +--ro ipv6-address? inet:ipv6-address
	| | +--:(tp-attribute)
	| | | +--ro tp-attribute-type? fec-type
	| | | +--ro (tp-attribute-value)?
	| | | +--:(ip-prefix)
	| | | | +--ro ip-prefix inet:ip-prefix
	| | | +--:(bgp)
	| | | | +--ro bgp? inet:ip-prefix
	| | | +--:(tunnel)
	| | | | +--ro tunnel-interface? uint32
	| | | +--:(pw)
	| | | | +--ro remote-pe-address? inet:ip-address
	| | | | +--ro pw-id? uint32
	| | | +--:(vpls)
	| | | | +--ro route-distinguisher? uint32
	| | | | +--ro sender-ve-id? uint32
	| | | | +--ro receiver-ve-id? uint32
	| | | +--:(mpls-mldp)
	| | | +--ro (root-address)?
	| | | +--:(ip-address)
	| | | | +--ro source-address? inet:ip-address
	| | | | +--ro group-ip-address? IP-Multicast
	-Group-Address
	| | | +--:(vpn)
	| | | | +--ro as-number? inet:as-number
	| | | +--:(global-id)
	| | | +--ro lsp-id? string
	| | +--:(system-info)
	| | +--ro system-id? router-id
	| +--ro sequence-number? uint64
	| +--ro hop-cnt? uint8
	| +--ro session-packet-statistics
	| | +--ro rx-packet-count? uint32
	| | +--ro tx-packet-count? uint32
	| | +--ro rx-bad-packet? uint32
	| | +--ro tx-packet-failed? uint32
	| +--ro session-error-statistics
	| | +--ro packet-drops-count? uint32
	| | +--ro packet-reorder-count? uint32
	| | +--ro packets-out-of-seq-count? uint32
	| | +--ro packets-dup-count? uint32
	| +--ro session-delay-statistics
	| | +--ro time-resolution-value? identityref
	| | +--ro min-delay-value? uint32
	| | +--ro max-delay-value? uint32
	| | +--ro average-delay-value? uint32
	| +--ro session-jitter-statistics
	| | +--ro time-resolution-value? identityref
	| | +--ro min-jitter-value? uint32
	| | +--ro max-jitter-value? uint32
	| | +--ro average-jitter-value? uint32
	| +--ro path-verification
	| | +--ro flow-info? string
	| | +--ro session-path-verification-statistics
	| | +--ro verified-count? uint32
	| | +--ro failed-count? uint32
	| +--ro path-trace-info
	| +--ro path-trace-info-list* [index]
	| +--ro index uint32
	| +--ro vrf? routing-instance-ref
	| +--ro tp-location-type-value? identityref
	| +--ro (tp-address)?
	| | +--:(mac-address)
	| | | +--ro mac-address? yang:mac-address
	| | +--:(ipv4-address)
	| | | +--ro ipv4-address? inet:ipv4-address
	| | +--:(ipv6-address)
	| | | +--ro ipv6-address? inet:ipv6-address
	| | +--:(tp-attribute)
	| | | +--ro tp-attribute-type? fec-type
	| | | +--ro (tp-attribute-value)?
	| | | +--:(ip-prefix)
	| | | | +--ro ip-prefix? inet:ip-prefix
	| | | +--:(bgp)
	| | | | +--ro bgp? inet:ip-prefix
	| | | +--:(tunnel)
	| | | | +--ro tunnel-interface? uint32
	| | | +--:(pw)
	| | | | +--ro remote-pe-address? inet:ip-address
	| | | | +--ro pw-id? uint32
	| | | +--:(vpls)
	| | | | +--ro route-distinguisher? uint32
	| | | | +--ro sender-ve-id? uint32
	| | | | +--ro receiver-ve-id? uint32
	| | | +--:(mpls-mldp)
	| | | +--ro (root-address)?
	| | | +--:(ip-address)
	| | | | +--ro source-address? inet:ip-address
	| | | | +--ro group-ip-address? IP-Multicast
	-Group-Address
	| | | +--:(vpn)
	| | | | +--ro as-number? inet:as-number
	| | | +--:(global-id)
	| | | +--ro lsp-id? string
	| | +--:(system-info)
	| | +--ro system-id? router-id
	| +--ro timestamp-sec? yang:timestamp
	| +--ro timestamp-nanosec? yang:timestamp
	| +--ro ingress-intf-name? if:interface-ref
	| +--ro egress-intf-name? if:interface-ref
	| +--ro queue-depth? uint32
	| +--ro transit-delay? uint32
	| +--ro app-meta-data? uint64
	| +--ro opaque-tlvs
	| +--ro opaque-tlvs-list*
	| +--ro type? opaque-tlv-type
	| +--ro length? uint16
	| +--ro value? yang:hex-string
	+---x pd-persistent-create
	| +---w input
	| | +---w destination-tp
	| | | +---w tp-location-type-value? identityref
	| | | +---w (tp-address)?
	| | | +--:(mac-address)
	| | | | +---w mac-address? yang:mac-address
	| | | +--:(ipv4-address)
	| | | | +---w ipv4-address? inet:ipv4-address
	| | | +--:(ipv6-address)
	| | | | +---w ipv6-address? inet:ipv6-address
	| | | +--:(tp-attribute)
	| | | | +---w tp-attribute-type? fec-type
	| | | | +---w (tp-attribute-value)?
	| | | | +--:(ip-prefix)
	| | | | | +---w ip-prefix? inet:ip-prefix
	| | | | +--:(bgp)
	| | | | | +---w bgp? inet:ip-prefix
	| | | | +--:(tunnel)
	| | | | | +---w tunnel-interface? uint32
	| | | | +--:(pw)
	| | | | | +---w remote-pe-address? inet:ip-address
	| | | | | +---w pw-id? uint32
	| | | | +--:(vpls)
	| | | | | +---w route-distinguisher? uint32
	| | | | | +---w sender-ve-id? uint32
	| | | | | +---w receiver-ve-id? uint32
	| | | | +--:(mpls-mldp)
	| | | | +---w (root-address)?
	| | | | +--:(ip-address)
	| | | | | +---w source-address inet:ip-address
	| | | | | +---w group-ip-address? IP-Multicast
	-Group-Address
	| | | | +--:(vpn)
	| | | | | +---w as-number? inet:as-number
	| | | | +--:(global-id)
	| | | | +---w lsp-id? string
	| | | +--:(system-info)
	| | | +---w system-id? router-id
	| | +---w session-type-enum? enumeration
	| | +---w source-interface? if:interface-ref
	| | +---w outbound-interface? if:interface-ref
	| | +---w vrf? coam:routing-instance-ref
	| | +---w max-ttl? uint8
	| | +---w data-export-method? export-method
	| | +---w (pd-trigger)?
	| | +--:(periodic)
	| | | +---w period? yang:timeticks
	| | | +---w start-time? yang:date-and-time
	| | +--:(on-change)
	| | +---w all-data-on-start? boolean
	| | +---w excluded-change* change-type
	| +--ro output
	| +--ro response-list* [response-index]
	| +--ro response-index uint32
	| +--ro status-code? int32
	| +--ro status-sub-code? uint8
	| +--ro pd-persistent-id? string
	+---x pd-persistent-modify
	| +---w input
	| | +---w pd-persistent-id? string
	| | +---w data-export-method? export-method
	| | +---w (pd-trigger)?
	| | +--:(periodic)
	| | | +---w period? yang:timeticks
	| | | +---w start-time? yang:date-and-time
	| | +--:(on-change)
	| | +---w all-data-on-start? boolean
	| | +---w excluded-change* change-type
	| +--ro output
	| +--ro response-list* [response-index]
	| +--ro response-index uint32
	| +--ro status-code? int32
	| +--ro status-sub-code? uint8
	| +--ro pd-persistent-id? string
	+---x pd-persistent-delete
	+---w input
	| +---w pd-persistent-id? string
	+--ro output
	+--ro response-list* [response-index]
	+--ro response-index uint32
	+--ro status-code? int32
	+--ro status-sub-code? uint8
	data hierarchy of OAM Retrieval Methods		data hierarchy of OAM Retrieval Methods
	4. OAM Retrieval Methods YANG Module		4. OAM Retrieval Methods YANG Module
	<CODE BEGINS> file "ietf-connectionless-oam-methods.yang"		<CODE BEGINS> file "ietf-connectionless-oam-methods.yang"
	module ietf-connectionless-oam-methods {		module ietf-connectionless-oam-methods {
	namespace "urn:ietf:params:xml:ns:yang:ietf-connectionless-oam-methods";		namespace "urn:ietf:params:xml:ns:yang:ietf-connectionless-oam-methods";
	prefix coam-methods;		prefix coam-methods;
	import ietf-interfaces {		import ietf-interfaces {
	prefix if;		prefix if;
	}		}
	import ietf-connectionless-oam {		import ietf-connectionless-oam {
	prefix coam;		prefix coam;
	}		}
	import ietf-yang-types {		import ietf-yang-types {
	prefix yang;		prefix yang;
	}		}
			organization
			"IETF LIME Working Group";
			contact
			"Deepak Kumar dekumar@cisco.com
			Qin Wu bill.wu@huawei.com
			S Raghavan srihari@cisco.com
			Zitao Wang wangzitao@huawei.com
			R Rahman rrahman@cisco.com";
			description
			"This YANG module defines the RPCs for ,
			connectionless OAM to be used within IETF
			in a protocol Independent manner.
			Functional level abstraction is indendent with
			YANG modeling. It is assumed that each protocol maps
			corresponding abstracts to its native format.
			Each protocol may extend the YANG model defined
			here to include protocol specific extensions";
	organization "IETF LIME Working Group";		revision 2017-02-15 {
	contact
	"Deepak Kumar dekumar@cisco.com
	Qin Wu bill.wu@huawei.com
	S Raghavan srihari@cisco.com
	Zitao Wang wangzitao@huawei.com
	R Rahman rrahman@cisco.com";
	description		description
	"This YANG module defines the RPCs for ,		"02 version";
	connectionless OAM to be used within IETF		reference "draft-ietf-lime-yang-connectionless-oam-methods";
	in a protocol Independent manner.		}
	Functional level abstraction is indendent with
	YANG modeling. It is assumed that each protocol maps
	corresponding abstracts to its native format.
	Each protocol may extend the YANG model defined
	here to include protocol specific extensions";
	revision 2017-02-15 {
	description
	"02 version";
	reference
	"draft-ietf-lime-yang-connectionless-oam-methods";
	}
	rpc continuity-check {
	if-feature coam:continuity-check;
	description
	"Generates continuity-check as per RFC7276.";
	input {
	container destination-tp {
	uses coam:tp-address;
	description
	"Destination test point.";
	}
	uses coam:session-type;
	leaf source-interface {
	type if:interface-ref;
	description
	"Source interface.";
	}
	leaf outbound-interface {
	type if:interface-ref;
	description
	"Outbound interface.";
	}
	leaf count {
	type uint32;
	default "5";
	description
	"Specifies the number of
	packets that will be sent.";
	}
	leaf vrf {
	type coam:routing-instance-ref;
	description
	"VRF instance.";
	}
	leaf ttl {		rpc continuity-check {
	type uint8;		if-feature "coam:continuity-check";
	default "255";		description
	description		"Generates continuity-check as per RFC7276.";
	"Time to live (TTL).";		input {
	}		container destination-tp {
	leaf packet-size {		uses coam:tp-address;
	type uint32 {		description
	range "64..10000";		"Destination test point.";
	}
	default "64";
	description
	"Size of ping echo request
	packets, in octets";
	}
	}		}
	output {		uses coam:session-type;
	list error-code-list {		leaf source-interface {
	key "response-index";		type if:interface-ref;
	leaf response-index {		description
	type uint32;		"Source interface.";
	description
	"Response index.";
	}
	leaf status-code {
	type int32;
	description
	"Error code is ";
	}
	leaf status-sub-code {
	type uint8;
	description
	"Sub code.";
	}
	description
	"Error code list.";
	}
	uses coam:continuity-check-data;
	}		}
	}		leaf outbound-interface {
			type if:interface-ref;
	identity export-method {		description
	description		"Outbound interface.";
	"Base identity to represent a conceptual export-method.";
	}
	identity ipfix-export {
	base export-method;
	description
	"IPFIX based export. Configuration provided separately.";
	}
	identity yang-push-export {
	base export-method;
	description
	"Yang-push from draft-ietf-netconf-yang-push";
	}
	typedef export-method {
	type identityref {
	base export-method;
	}		}
	description		leaf count {
	"Export method type.";		type uint32;
	}		default "5";
	typedef change-type {
	type enumeration {
	enum "create" {
	description		description
	"Change due to a create.";		"Specifies the number of
	}		packets that will be sent.";
	enum "delete" {		}
			leaf vrf {
			type coam:routing-instance-ref;
	description		description
	"Change due to a delete.";		"VRF instance.";
	}		}
	enum "modify" {		leaf ttl {
			type uint8;
			default "255";
	description		description
	"Change due to an update.";		"Time to live (TTL).";
			}
			leaf packet-size {
			type uint32 {
			range "64..10000";
	}		}
			default "64";
			description
			"Size of ping echo request
			packets, in octets";
	}		}
	description
	"Different types of changes that may occur.";
	}		}
			output {
	rpc cc-persistent-create {		list error-code-list {
	if-feature coam:continuity-check;		key "response-index";
	description		leaf response-index {
	"Generates persistent continuity-check.";		type uint32;
	input {
	container destination-tp {
	uses coam:tp-address;
	description		description
	"Destination test point.";		"Response index.";
	}
	uses coam:session-type;
	leaf source-interface {
	type if:interface-ref;
	description
	"Source interface.";
	}
	leaf outbound-interface {
	type if:interface-ref;
	description
	"Outbound interface.";
	}		}
			leaf status-code {
	leaf vrf {		type int32;
	type coam:routing-instance-ref;
	description		description
	"VRF instance.";		"Error code is ";
	}		}
			leaf status-sub-code {
	leaf ttl {
	type uint8;		type uint8;
	default "255";
	description
	"Time to live (TTL).";
	}
	leaf data-export-method {
	type export-method;
	description
	"Type of export.";
	}
	choice cc-trigger {
	description
	"Defines necessary conditions for
	periodic or on-change trigger.";
	case periodic {
	description "Periodic reports.";
	leaf period {
	type yang:timeticks;
	description "Time interval between reports.";
	}
	leaf start-time {
	type yang:date-and-time;
	description
	"Timestamp from which reports are started.";
	}
	}
	case on-change {
	description
	"On-change trigger and not periodic.";
	leaf all-data-on-start {
	type boolean;
	description
	"Full update needed on start or not.";
	}
	leaf-list excluded-change {
	type change-type;
	description
	"Restrict which changes trigger an update.";
	}
	}
	}
	}
	output {
	list error-code-list {
	key "response-index";
	leaf response-index {
	type uint32;
	description
	"Response index.";
	}
	leaf status-code {
	type int32;
	description
	"Error code.";
	}
	leaf status-sub-code {
	type uint8;
	description
	"Sub code.";
	}
	description		description
	"Error code list.";		"Sub code.";
	}
	leaf cc-persistent-id {
	type string;
	description
	"Id to act as a cookie.";
	}		}
			description
			"Error code list.";
	}		}
			uses coam:continuity-check-data;
	}		}
	rpc cc-persistent-modify {		}
	if-feature coam:continuity-check;
	description
	"Modifies persistent continuity-check
	as per RFC7276.";
	input {
	leaf cc-persistent-id {
	type string;
	description
	"Cookie Id to be used for modifications.";
	}
	leaf data-export-method {
	type export-method;
	description
	"Type of export to use.";
	}
	choice cc-trigger {		rpc path-discovery {
	description		if-feature "coam:path-discovery";
	"Defines necessary conditions for		description
	periodic or on-change trigger.";		"Generates path discovery as per RFC7276.";
	case periodic {		input {
	description "Periodic reports.";		container destination-tp {
	leaf period {		uses coam:tp-address;
	type yang:timeticks;		description
	description		"Destination test point.";
	"Time interval between reports.";
	}
	leaf start-time {
	type yang:date-and-time;
	description
	"Timestamp from which reports are started.";
	}
	}
	case on-change {
	description
	"On-change trigger and not periodic.";
	leaf all-data-on-start {
	type boolean;
	description
	"Full update needed on start or not.";
	}
	leaf-list excluded-change {
	type change-type;
	description
	"Restrict which changes trigger an update.";
	}
	}
	}
	}		}
	output {		uses coam:session-type;
	list error-code-list {		leaf source-interface {
	key "response-index";		type if:interface-ref;
	leaf response-index {		description
	type uint32;		"Source interface.";
	description
	"Response index.";
	}
	leaf status-code {
	type int32;
	description
	"Error code";
	}
	leaf status-sub-code {
	type uint8;
	description
	"Sub code.";
	}
	description
	"Error code list.";
	}
	leaf cc-persistent-id {
	type string;
	description
	"Id to represent a cookie.";
	}
	}		}
	}		leaf outbound-interface {
			type if:interface-ref;
	rpc cc-persistent-delete {		description
	if-feature coam:continuity-check;		"Outbound interface.";
	description
	"Deletes persistent continuity-check as per RFC7276.";
	input {
	leaf cc-persistent-id {
	type string;
	description
	"Cookie Id to be used in deletion.";
	}
	}		}
	output {		leaf vrf {
	list error-code-list {		type coam:routing-instance-ref;
	key "response-index";		description
	leaf response-index {		"VRF";
	type uint32;
	description
	"Response index.";
	}
	leaf status-code {
	type int32;
	description
	"Error code.";
	}
	leaf status-sub-code {
	type uint8;
	description
	"Sub code.";
	}
	description
	"Error code list.";
	}
	}		}
	}		leaf max-ttl {
			type uint8;
	rpc path-discovery {		default "255";
	description		description
	"Generates path discovery as per RFC7276.";		"Max ttl.";
	input {
	container destination-tp {
	uses coam:tp-address;
	description
	"Destination test point.";
	}
	uses coam:session-type;
	leaf source-interface {
	type if:interface-ref;
	description
	"Source interface.";
	}
	leaf outbound-interface {
	type if:interface-ref;
	description
	"Outbound interface.";
	}
	leaf vrf {
	type coam:routing-instance-ref;
	description
	"VRF";
	}
	leaf max-ttl {
	type uint8;
	default "255";
	description
	"Max ttl.";
	}
	}		}
	output {
	list response-list {
	key "response-index";
	description
	"Path discovery response list.";
	leaf response-index {
	type uint32;
	description
	"Response index.";
	}
	leaf status-code {
	type int32;
	description
	"Error code is ";
	}
	leaf status-sub-code {
	type uint8;
	description
	"Sub code is ";
	}
	}
	uses coam:path-discovery-data;
	}
	}		}
			output {
	rpc pd-persistent-create {		list response-list {
	description		key "response-index";
	"Generates persistent path discovery.";		description
	input {		"Path discovery response list.";
	container destination-tp {		leaf response-index {
	uses coam:tp-address;		type uint32;
	description
	"Destination test point.";
	}
	uses coam:session-type;
	leaf source-interface {
	type if:interface-ref;
	description
	"Source interface.";
	}
	leaf outbound-interface {
	type if:interface-ref;
	description		description
	"Outbound interface.";		"Response index.";
	}		}
			leaf status-code {
	leaf vrf {		type int32;
	type coam:routing-instance-ref;
	description		description
	"VRF";		"Error code is ";
	}		}
			leaf status-sub-code {
	leaf max-ttl {
	type uint8;		type uint8;
	default "255";
	description
	"Max ttl.";
	}
	leaf data-export-method {
	type export-method;
	description
	"Type of export.";
	}
	choice pd-trigger {
	description
	"Defines necessary conditions
	for periodic or on-change
	trigger.";
	case periodic {
	description
	"Periodic reports.";
	leaf period {
	type yang:timeticks;
	description
	"Time interval between reports.";
	}
	leaf start-time {
	type yang:date-and-time;
	description
	"Timestamp from which reports are started.";
	}
	}
	case on-change {
	description
	"On-change trigger and not periodic.";
	leaf all-data-on-start {
	type boolean;
	description
	"Full update needed on start or not.";
	}
	leaf-list excluded-change {
	type change-type;
	description
	"Restrict which changes trigger an update.";
	}
	}
	}
	}
	output {
	list response-list {
	key "response-index";
	description		description
	"Path discovery response list.";
	leaf response-index {
	type uint32;
	description
	"Response index.";
	}
	leaf status-code {
	type int32;
	description
	"Error code is ";
	}
	leaf status-sub-code {
	type uint8;
	description
	"Sub code is ";		"Sub code is ";
	}
	leaf pd-persistent-id {
	type string;
	description
	"Id to act as a cookie.";
	}
	}
	}
	}
	rpc pd-persistent-modify {
	description
	"Modifies persistent path discovery.";
	input {
	leaf pd-persistent-id {
	type string;
	description "Cookie Id to be used for modifications.";
	}
	leaf data-export-method {
	type export-method;
	description "Type of export.";
	}
	choice pd-trigger {
	description
	"Defines necessary conditions for periodic or on-change
	trigger.";
	case periodic {
	description "Periodic reports.";
	leaf period {
	type yang:timeticks;
	description
	"Time interval between reports.";
	}
	leaf start-time {
	type yang:date-and-time;
	description
	"Timestamp from which reports are started.";
	}
	}
	case on-change {
	description
	"On-change trigger and not periodic.";
	leaf all-data-on-start {
	type boolean;
	description
	"Full update needed on start or not.";
	}
	leaf-list excluded-change {
	type change-type;
	description
	"Restrict which changes trigger an update.";
	}
	}
	}
	}
	output {
	list response-list {
	key "response-index";
	description
	"path discovery response list.";
	leaf response-index {
	type uint32;
	description
	"response index.";
	}
	leaf status-code {
	type int32;
	description
	"error code is ";
	}
	leaf status-sub-code {
	type uint8;
	description
	"sub code is ";
	}
	leaf pd-persistent-id {
	type string;
	description "Id to act as a cookie.";
	}
	}
	}
	}
	rpc pd-persistent-delete {
	description
	"Deletes persistent path discovery.";
	input {
	leaf pd-persistent-id {
	type string;
	description "Cookie Id to be used in deletion.";
	}
	}
	output {
	list response-list {
	key "response-index";
	description
	"path discovery response list.";
	leaf response-index {
	type uint32;
	description
	"response index.";
	}
	leaf status-code {
	type int32;
	description
	"error code is ";
	}
	leaf status-sub-code {
	type uint8;
	description
	"sub code is ";
	}
	}		}
	}		}
			uses coam:path-discovery-data;
	}		}
			}
	}		}
	<CODE ENDS>		<CODE ENDS>
	5. Security Considerations		5. Security Considerations
	The YANG modules defined in this memo are designed to be accessed via		The YANG modules defined in this memo are designed to be accessed via
	the NETCONF protocol [RFC6241]. The lowest NETCONF layer is the		the NETCONF protocol [RFC6241]. The lowest NETCONF layer is the
	secure transport layer and the mandatory to implement secure		secure transport layer and the mandatory to implement secure
	transport is SSH [RFC6242]. The NETCONF access control model		transport is SSH [RFC6242]. The NETCONF access control model
	skipping to change at page 35, line 4 ¶		skipping to change at page 14, line 15 ¶
	name: ietf-connectionless-oam-methods		name: ietf-connectionless-oam-methods
	namespace: urn:ietf:params:xml:ns:yang:ietf-connectionless-oam-		namespace: urn:ietf:params:xml:ns:yang:ietf-connectionless-oam-
	methods		methods
	prefix: coam-methods		prefix: coam-methods
	reference: RFC XXXX		reference: RFC XXXX
	7. References		7. References
	7.1. Normative References		7.1. Normative References
	[I-D.ietf-lime-yang-connectionless-oam]		[I-D.ietf-lime-yang-connectionless-oam]
	Kumar, D., Wang, Z., Wu, Q., Rahman, R., and S. Raghavan,		Kumar, D., Wang, Z., Wu, Q., Rahman, R., and S. Raghavan,
	"Generic YANG Data Model for Connectionless Operations,		"Generic YANG Data Model for Connectionless Operations,
	Administration, and Maintenance(OAM) protocols", draft-		Administration, and Maintenance(OAM) protocols", draft-
	ietf-lime-yang-connectionless-oam-03 (work in progress),		ietf-lime-yang-connectionless-oam-04 (work in progress),
	December 2016.		February 2017.
	[I-D.ietf-netconf-yang-push]		[I-D.ietf-netconf-yang-push]
	Clemm, A., Voit, E., Prieto, A., Tripathy, A., Nilsen-		Clemm, A., Voit, E., Prieto, A., Tripathy, A., Nilsen-
	Nygaard, E., Bierman, A., and B. Lengyel, "Subscribing to		Nygaard, E., Bierman, A., and B. Lengyel, "Subscribing to
	YANG datastore push updates", draft-ietf-netconf-yang-		YANG datastore push updates", draft-ietf-netconf-yang-
	push-04 (work in progress), October 2016.		push-06 (work in progress), April 2017.
	[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate		[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
	Requirement Levels", BCP 14, RFC 2119,		Requirement Levels", BCP 14, RFC 2119,
	DOI 10.17487/RFC2119, March 1997,		DOI 10.17487/RFC2119, March 1997,
	<http://www.rfc-editor.org/info/rfc2119>.		<http://www.rfc-editor.org/info/rfc2119>.
	[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,		[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
	DOI 10.17487/RFC3688, January 2004,		DOI 10.17487/RFC3688, January 2004,
	<http://www.rfc-editor.org/info/rfc3688>.		<http://www.rfc-editor.org/info/rfc3688>.
	skipping to change at page 36, line 31 ¶		skipping to change at page 15, line 42 ¶
	[RFC5880] Katz, D. and D. Ward, "Bidirectional Forwarding Detection		[RFC5880] Katz, D. and D. Ward, "Bidirectional Forwarding Detection
	(BFD)", RFC 5880, DOI 10.17487/RFC5880, June 2010,		(BFD)", RFC 5880, DOI 10.17487/RFC5880, June 2010,
	<http://www.rfc-editor.org/info/rfc5880>.		<http://www.rfc-editor.org/info/rfc5880>.
	[RFC7276] Mizrahi, T., Sprecher, N., Bellagamba, E., and Y.		[RFC7276] Mizrahi, T., Sprecher, N., Bellagamba, E., and Y.
	Weingarten, "An Overview of Operations, Administration,		Weingarten, "An Overview of Operations, Administration,
	and Maintenance (OAM) Tools", RFC 7276,		and Maintenance (OAM) Tools", RFC 7276,
	DOI 10.17487/RFC7276, June 2014,		DOI 10.17487/RFC7276, June 2014,
	<http://www.rfc-editor.org/info/rfc7276>.		<http://www.rfc-editor.org/info/rfc7276>.
	Authors' Addresses		Appendix A. Appendix
			The following are some examples of extensions possible to the yang
			model. The example discusses persistent methods.
			The persistent method RPCs are commands to trigger persistent
			continuity check or path discovery OAM while specifying the options
			for data-export from the device. Internet Protocol Flow Information
			Export (IPFIX) [RFC7011] or yang-push [I-D.ietf-netconf-yang-push].
			are currently outlined here as data export options and more can be
			added in future. It should be noted that the persistent methods are
			used to trigger create, modify and delete the persistent state
			associated with the data export options. The data export specific
			configurations are beyond the scope of this document.
			A.1. OAM Retrieval Persistent Methods YANG Module
			<CODE BEGINS> file "ietf-connectionless-oam-persistent-methods.yang"
			identity export-method {
			description
			"Base identity to represent a conceptual export-method.";
			}
			identity ipfix-export {
			base export-method;
			description
			"IPFIX based export. Configuration provided separately.";
			}
			identity yang-push-export {
			base export-method;
			description
			"Yang-push from draft-ietf-netconf-yang-push";
			}
			typedef export-method {
			type identityref {
			base export-method;
			}
			description
			"Export method type.";
			}
			typedef change-type {
			type enumeration {
			enum "create" {
			description
			"Change due to a create.";
			}
			enum "delete" {
			description
			"Change due to a delete.";
			}
			enum "modify" {
			description
			"Change due to an update.";
			}
			}
			description
			"Different types of changes that may occur.";
			}
			rpc cc-persistent-create {
			if-feature "coam:continuity-check";
			description
			"Generates persistent continuity-check.";
			input {
			container destination-tp {
			uses coam:tp-address;
			description
			"Destination test point.";
			}
			uses coam:session-type;
			leaf source-interface {
			type if:interface-ref;
			description
			"Source interface.";
			}
			leaf outbound-interface {
			type if:interface-ref;
			description
			"Outbound interface.";
			}
			leaf vrf {
			type coam:routing-instance-ref;
			description
			"VRF instance.";
			}
			leaf ttl {
			type uint8;
			default "255";
			description
			"Time to live (TTL).";
			}
			leaf data-export-method {
			type export-method;
			description
			"Type of export.";
			}
			choice cc-trigger {
			description
			"Defines necessary conditions for
			periodic or on-change trigger.";
			case periodic {
			description
			"Periodic reports.";
			leaf period {
			type yang:timeticks;
			description
			"Time interval between reports.";
			}
			leaf start-time {
			type yang:date-and-time;
			description
			"Timestamp from which reports are started.";
			}
			}
			case on-change {
			description
			"On-change trigger and not periodic.";
			leaf all-data-on-start {
			type boolean;
			description
			"Full update needed on start or not.";
			}
			leaf-list excluded-change {
			type change-type;
			description
			"Restrict which changes trigger an update.";
			}
			}
			}
			}
			output {
			list error-code-list {
			key "response-index";
			leaf response-index {
			type uint32;
			description
			"Response index.";
			}
			leaf status-code {
			type int32;
			description
			"Error code.";
			}
			leaf status-sub-code {
			type uint8;
			description
			"Sub code.";
			}
			description
			"Error code list.";
			}
			leaf cc-persistent-id {
			type string;
			description
			"Id to act as a cookie.";
			}
			}
			}
			rpc cc-persistent-modify {
			if-feature "coam:continuity-check";
			description
			"Modifies persistent continuity-check
			as per RFC7276.";
			input {
			leaf cc-persistent-id {
			type string;
			description
			"Cookie Id to be used for modifications.";
			}
			leaf data-export-method {
			type export-method;
			description
			"Type of export to use.";
			}
			choice cc-trigger {
			description
			"Defines necessary conditions for
			periodic or on-change trigger.";
			case periodic {
			description
			"Periodic reports.";
			leaf period {
			type yang:timeticks;
			description
			"Time interval between reports.";
			}
			leaf start-time {
			type yang:date-and-time;
			description
			"Timestamp from which reports are started.";
			}
			}
			case on-change {
			description
			"On-change trigger and not periodic.";
			leaf all-data-on-start {
			type boolean;
			description
			"Full update needed on start or not.";
			}
			leaf-list excluded-change {
			type change-type;
			description
			"Restrict which changes trigger an update.";
			}
			}
			}
			}
			output {
			list error-code-list {
			key "response-index";
			leaf response-index {
			type uint32;
			description
			"Response index.";
			}
			leaf status-code {
			type int32;
			description
			"Error code";
			}
			leaf status-sub-code {
			type uint8;
			description
			"Sub code.";
			}
			description
			"Error code list.";
			}
			leaf cc-persistent-id {
			type string;
			description
			"Id to represent a cookie.";
			}
			}
			}
			rpc cc-persistent-delete {
			if-feature "coam:continuity-check";
			description
			"Deletes persistent continuity-check as per RFC7276.";
			input {
			leaf cc-persistent-id {
			type string;
			description
			"Cookie Id to be used in deletion.";
			}
			}
			output {
			list error-code-list {
			key "response-index";
			leaf response-index {
			type uint32;
			description
			"Response index.";
			}
			leaf status-code {
			type int32;
			description
			"Error code.";
			}
			leaf status-sub-code {
			type uint8;
			description
			"Sub code.";
			}
			description
			"Error code list.";
			}
			}
			}
			rpc pd-persistent-create {
			description
			"Generates persistent path discovery.";
			input {
			container destination-tp {
			uses coam:tp-address;
			description
			"Destination test point.";
			}
			uses coam:session-type;
			leaf source-interface {
			type if:interface-ref;
			description
			"Source interface.";
			}
			leaf outbound-interface {
			type if:interface-ref;
			description
			"Outbound interface.";
			}
			leaf vrf {
			type coam:routing-instance-ref;
			description
			"VRF";
			}
			leaf max-ttl {
			type uint8;
			default "255";
			description
			"Max ttl.";
			}
			leaf data-export-method {
			type export-method;
			description
			"Type of export.";
			}
			choice pd-trigger {
			description
			"Defines necessary conditions
			for periodic or on-change
			trigger.";
			case periodic {
			description
			"Periodic reports.";
			leaf period {
			type yang:timeticks;
			description
			"Time interval between reports.";
			}
			leaf start-time {
			type yang:date-and-time;
			description
			"Timestamp from which reports are started.";
			}
			}
			case on-change {
			description
			"On-change trigger and not periodic.";
			leaf all-data-on-start {
			type boolean;
			description
			"Full update needed on start or not.";
			}
			leaf-list excluded-change {
			type change-type;
			description
			"Restrict which changes trigger an update.";
			}
			}
			}
			}
			output {
			list response-list {
			key "response-index";
			description
			"Path discovery response list.";
			leaf response-index {
			type uint32;
			description
			"Response index.";
			}
			leaf status-code {
			type int32;
			description
			"Error code is ";
			}
			leaf status-sub-code {
			type uint8;
			description
			"Sub code is ";
			}
			leaf pd-persistent-id {
			type string;
			description
			"Id to act as a cookie.";
			}
			}
			}
			}
			rpc pd-persistent-modify {
			description
			"Modifies persistent path discovery.";
			input {
			leaf pd-persistent-id {
			type string;
			description
			"Cookie Id to be used for modifications.";
			}
			leaf data-export-method {
			type export-method;
			description
			"Type of export.";
			}
			choice pd-trigger {
			description
			"Defines necessary conditions for periodic or on-change
			trigger.";
			case periodic {
			description
			"Periodic reports.";
			leaf period {
			type yang:timeticks;
			description
			"Time interval between reports.";
			}
			leaf start-time {
			type yang:date-and-time;
			description
			"Timestamp from which reports are started.";
			}
			}
			case on-change {
			description
			"On-change trigger and not periodic.";
			leaf all-data-on-start {
			type boolean;
			description
			"Full update needed on start or not.";
			}
			leaf-list excluded-change {
			type change-type;
			description
			"Restrict which changes trigger an update.";
			}
			}
			}
			}
			output {
			list response-list {
			key "response-index";
			description
			"path discovery response list.";
			leaf response-index {
			type uint32;
			description
			"response index.";
			}
			leaf status-code {
			type int32;
			description
			"error code is ";
			}
			leaf status-sub-code {
			type uint8;
			description
			"sub code is ";
			}
			leaf pd-persistent-id {
			type string;
			description
			"Id to act as a cookie.";
			}
			}
			}
			}
			rpc pd-persistent-delete {
			description
			"Deletes persistent path discovery.";
			input {
			leaf pd-persistent-id {
			type string;
			description
			"Cookie Id to be used in deletion.";
			}
			}
			output {
			list response-list {
			key "response-index";
			description
			"path discovery response list.";
			leaf response-index {
			type uint32;
			description
			"response index.";
			}
			leaf status-code {
			type int32;
			description
			"error code is ";
			}
			leaf status-sub-code {
			type uint8;
			description
			"sub code is ";
			}
			}
			}
			}
			<CODE ENDS>
			Authors' Addresses
	Deepak Kumar		Deepak Kumar
	CISCO Systems		CISCO Systems
	510 McCarthy Blvd		510 McCarthy Blvd
	Milpitas, CA 95035		Milpitas, CA 95035
	USA		USA
	Email: dekumar@cisco.com		Email: dekumar@cisco.com
	Michael Wang		Michael Wang
	Huawei Technologies,Co.,Ltd		Huawei Technologies,Co.,Ltd
End of changes. 53 change blocks.
	1178 lines changed or deleted		655 lines changed or added
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