< draft-ietf-rtgwg-yang-vrrp-03.txt		draft-ietf-rtgwg-yang-vrrp-04.txt >
	Network Working Group X. Liu, Ed.		Network Working Group X. Liu, Ed.
	Internet-Draft A. Kyparlis		Internet-Draft A. Kyparlis
	Intended status: Standards Track Jabil		Intended status: Standards Track Jabil
	Expires: November 9, 2017 R. Parikh		Expires: December 1, 2017 R. Parikh
	VMware		VMware
	A. Lindem		A. Lindem
	Cisco Systems		Cisco Systems
	M. Zhang		M. Zhang
	Huawei Technologies		Huawei Technologies
	May 8, 2017		May 30, 2017
	A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)		A YANG Data Model for Virtual Router Redundancy Protocol (VRRP)
	draft-ietf-rtgwg-yang-vrrp-03		draft-ietf-rtgwg-yang-vrrp-04
	Abstract		Abstract
	This document describes a data model for Virtual Router Redundancy		This document describes a data model for Virtual Router Redundancy
	Protocol (VRRP). Both version 2 and version 3 of VRRP are covered.		Protocol (VRRP). Both version 2 and version 3 of VRRP are covered.
	Status of This Memo		Status of This Memo
	This Internet-Draft is submitted in full conformance with the		This Internet-Draft is submitted in full conformance with the
	provisions of BCP 78 and BCP 79.		provisions of BCP 78 and BCP 79.
	skipping to change at page 1, line 37 ¶		skipping to change at page 1, line 37 ¶
	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 November 9, 2017.		This Internet-Draft will expire on December 1, 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
	skipping to change at page 2, line 25 ¶		skipping to change at page 2, line 25 ¶
	2.1. Scope of the Model . . . . . . . . . . . . . . . . . . . 4		2.1. Scope of the Model . . . . . . . . . . . . . . . . . . . 4
	2.2. Relations with Interface Model and IP Model . . . . . . . 4		2.2. Relations with Interface Model and IP Model . . . . . . . 4
	2.3. Protocol Configuration . . . . . . . . . . . . . . . . . 6		2.3. Protocol Configuration . . . . . . . . . . . . . . . . . 6
	2.4. Protocol States . . . . . . . . . . . . . . . . . . . . . 8		2.4. Protocol States . . . . . . . . . . . . . . . . . . . . . 8
	2.5. Notifications . . . . . . . . . . . . . . . . . . . . . . 9		2.5. Notifications . . . . . . . . . . . . . . . . . . . . . . 9
	3. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . 10		3. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . 10
	4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 32		4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 32
	5. Security Considerations . . . . . . . . . . . . . . . . . . . 33		5. Security Considerations . . . . . . . . . . . . . . . . . . . 33
	6. References . . . . . . . . . . . . . . . . . . . . . . . . . 33		6. References . . . . . . . . . . . . . . . . . . . . . . . . . 33
	6.1. Normative References . . . . . . . . . . . . . . . . . . 33		6.1. Normative References . . . . . . . . . . . . . . . . . . 33
	6.2. Informative References . . . . . . . . . . . . . . . . . 35		6.2. Informative References . . . . . . . . . . . . . . . . . 34
	Appendix A. Complete Model Tree Structure . . . . . . . . . . . 36		Appendix A. Complete Model Tree Structure . . . . . . . . . . . 36
	Appendix B. Data Tree Example . . . . . . . . . . . . . . . . . 39		Appendix B. Data Tree Example . . . . . . . . . . . . . . . . . 39
	Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 42		Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 42
	1. Introduction		1. Introduction
	This document introduces a YANG [RFC6020][RFC7950] data model for		This document introduces a YANG [RFC6020][RFC7950] data model for
	Virtual Router Redundancy Protocol (VRRP) [RFC3768][RFC5798]. VRRP		Virtual Router Redundancy Protocol (VRRP) [RFC3768][RFC5798]. VRRP
	provides higher resiliency by specifying an election protocol that		provides higher resiliency by specifying an election protocol that
	dynamically assigns responsibility for a virtual router to one of the		dynamically assigns responsibility for a virtual router to one of the
	VRRP routers on a LAN.		VRRP routers on a LAN.
	This YANG model supports both version 2 and version 3 of VRRP. VRRP		This YANG model supports both version 2 and version 3 of VRRP. VRRP
	version 2 defined in [RFC3768] supports IPv4. VRRP version 3 defined		version 2 defined in [RFC3768] supports IPv4. VRRP version 3 defined
	in [RFC5798] supports both IPv4 and IPv6.		in [RFC5798] supports both IPv4 and IPv6.
	1.1. Terminology		1.1. Terminology
	The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",		The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
	"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and		"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
	"OPTIONAL" in this document are to be interpreted as described in BCP		document are to be interpreted as described in [RFC2119].
	14, [RFC2119].
	The following terms are defined in [RFC7950] and are not redefined		The following terms are defined in [RFC7950] and are not redefined
	here:		here:
	o augment		o augment
	o data model		o data model
	o data node		o data node
	1.2. Tree Diagrams		1.2. Tree Diagrams
	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 these diagrams is as		this document. The meaning of the symbols in these diagrams is as
	follows:		follows:
	skipping to change at page 34, line 5 ¶		skipping to change at page 34, line 5 ¶
	[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>.
	[RFC3768] Hinden, R., Ed., "Virtual Router Redundancy Protocol
	(VRRP)", RFC 3768, DOI 10.17487/RFC3768, April 2004,
	<http://www.rfc-editor.org/info/rfc3768>.
	[RFC5798] Nadas, S., Ed., "Virtual Router Redundancy Protocol (VRRP)		[RFC5798] Nadas, S., Ed., "Virtual Router Redundancy Protocol (VRRP)
	Version 3 for IPv4 and IPv6", RFC 5798,		Version 3 for IPv4 and IPv6", RFC 5798,
	DOI 10.17487/RFC5798, March 2010,		DOI 10.17487/RFC5798, March 2010,
	<http://www.rfc-editor.org/info/rfc5798>.		<http://www.rfc-editor.org/info/rfc5798>.
	[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for		[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
	the Network Configuration Protocol (NETCONF)", RFC 6020,		the Network Configuration Protocol (NETCONF)", RFC 6020,
	DOI 10.17487/RFC6020, October 2010,		DOI 10.17487/RFC6020, October 2010,
	<http://www.rfc-editor.org/info/rfc6020>.		<http://www.rfc-editor.org/info/rfc6020>.
	skipping to change at page 34, line 40 ¶		skipping to change at page 34, line 36 ¶
	<http://www.rfc-editor.org/info/rfc7223>.		<http://www.rfc-editor.org/info/rfc7223>.
	[RFC7277] Bjorklund, M., "A YANG Data Model for IP Management",		[RFC7277] Bjorklund, M., "A YANG Data Model for IP Management",
	RFC 7277, DOI 10.17487/RFC7277, June 2014,		RFC 7277, DOI 10.17487/RFC7277, June 2014,
	<http://www.rfc-editor.org/info/rfc7277>.		<http://www.rfc-editor.org/info/rfc7277>.
	[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,
	<http://www.rfc-editor.org/info/rfc7950>.		<http://www.rfc-editor.org/info/rfc7950>.
	[I-D.ietf-netconf-rfc5277bis]
	Clemm, A., Prieto, A., Voit, E., Nilsen-Nygaard, E.,
	Tripathy, A., Chisholm, S., and H. Trevino, "Subscribing
	to Event Notifications", draft-ietf-netconf-rfc5277bis-01
	(work in progress), October 2016.
	[I-D.ietf-netconf-yang-push]
	Clemm, A., Voit, E., Prieto, A., Tripathy, A., Nilsen-
	Nygaard, E., Bierman, A., and B. Lengyel, "Subscribing to
	YANG datastore push updates", draft-ietf-netconf-yang-
	push-06 (work in progress), April 2017.
	6.2. Informative References		6.2. Informative References
	[RFC6087] Bierman, A., "Guidelines for Authors and Reviewers of YANG		[RFC3768] Hinden, R., Ed., "Virtual Router Redundancy Protocol
	Data Model Documents", RFC 6087, DOI 10.17487/RFC6087,		(VRRP)", RFC 3768, DOI 10.17487/RFC3768, April 2004,
	January 2011, <http://www.rfc-editor.org/info/rfc6087>.		<http://www.rfc-editor.org/info/rfc3768>.
	[RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration		[RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration
	Protocol (NETCONF) Access Control Model", RFC 6536,		Protocol (NETCONF) Access Control Model", RFC 6536,
	DOI 10.17487/RFC6536, March 2012,		DOI 10.17487/RFC6536, March 2012,
	<http://www.rfc-editor.org/info/rfc6536>.		<http://www.rfc-editor.org/info/rfc6536>.
	[RFC7951] Lhotka, L., "JSON Encoding of Data Modeled with YANG",		[RFC7951] Lhotka, L., "JSON Encoding of Data Modeled with YANG",
	RFC 7951, DOI 10.17487/RFC7951, August 2016,		RFC 7951, DOI 10.17487/RFC7951, August 2016,
	<http://www.rfc-editor.org/info/rfc7951>.		<http://www.rfc-editor.org/info/rfc7951>.
			[I-D.ietf-netconf-rfc5277bis]
			Clemm, A., Prieto, A., Voit, E., Nilsen-Nygaard, E.,
			Tripathy, A., Chisholm, S., and H. Trevino, "Subscribing
			to Event Notifications", draft-ietf-netconf-rfc5277bis-01
			(work in progress), October 2016.
			[I-D.ietf-netconf-yang-push]
			Clemm, A., Voit, E., Prieto, A., Tripathy, A., Nilsen-
			Nygaard, E., Bierman, A., and B. Lengyel, "Subscribing to
			YANG datastore push updates", draft-ietf-netconf-yang-
			push-06 (work in progress), April 2017.
	Appendix A. Complete Model Tree Structure		Appendix A. Complete Model Tree Structure
	The VRRP YANG data model defined in this document has the following		The VRRP YANG data model defined in this document has the following
	tree structure:		tree structure:
	module: ietf-vrrp		module: ietf-vrrp
	augment /if:interfaces/if:interface/ip:ipv4:		augment /if:interfaces/if:interface/ip:ipv4:
	+--rw vrrp		+--rw vrrp
	+--rw vrrp-instance* [vrid]		+--rw vrrp-instance* [vrid]
	+--rw vrid uint8		+--rw vrid uint8
	skipping to change at page 40, line 5 ¶		skipping to change at page 40, line 5 ¶
	| +--:(ipv6)		| +--:(ipv6)
	| +--ro ipv6		| +--ro ipv6
	| +--ro vrid leafref		| +--ro vrid leafref
	+--ro virtual-router-error-reason identityref		+--ro virtual-router-error-reason identityref
	Appendix B. Data Tree Example		Appendix B. Data Tree Example
	This section contains an example of an instance data tree in the JSON		This section contains an example of an instance data tree in the JSON
	encoding [RFC7951], containing both configuration and state data.		encoding [RFC7951], containing both configuration and state data.
	Virtual router IP address: 10.0.0.1		Virtual router IP address: 192.0.2.1
	+-----------------+ +-----------------+		+-----------------+ +-----------------+
	| | | |		| | | |
	| Router 1.1.1.1 | | Router 1.1.1.2 |		| Router 1 | | Router 2 |
	| | | |		| | | |
	+--------+--------+ +--------+--------+		+--------+--------+ +--------+--------+
	|eth1 |eth1		|eth1 |eth1
	|10.0.1.1 |10.0.2.1		|192.0.2.11 |192.0.2.12
	-------+--------------------------+-------		-------+--------------------------+-------
	| |		| |
	|10.0.2.1 |10.0.2.2		|192.0.2.51 |192.0.2.52
	+--------+--------+ +--------+--------+		+--------+--------+ +--------+--------+
	| Host 1 | | Host 2 |		| Host 1 | | Host 2 |
	| Default gateway:| | Default gateway:|		| Default gateway:| | Default gateway:|
	| 10.0.0.1 | | 10.0.0.1 |		| 192.0.2.1 | | 192.0.2.1 |
	+-----------------+ +-----------------+		+-----------------+ +-----------------+
	The instance data tree for Router 1.1.1.1 in the above figure could		The instance data tree for Router 1 in the above figure could be as
	be as follows:		follows:
	{		{
	"ietf-interfaces:interfaces": {		"ietf-interfaces:interfaces": {
	"interface": [		"interface": [
	{		{
	"name": "eth1",		"name": "eth1",
	"type": "iana-if-type:ethernetCsmacd",		"type": "iana-if-type:ethernetCsmacd",
	"description": "An interface with VRRP enabled.",		"description": "An interface with VRRP enabled.",
	"ietf-ip:ipv4": {		"ietf-ip:ipv4": {
	"address": [		"address": [
	{		{
	"ip": "10.0.1.1",		"ip": "192.0.2.11",
	"prefix-length": 24		"prefix-length": 24
	}		}
	],		],
	"forwarding": true,		"forwarding": true,
	"ietf-vrrp:vrrp": {		"ietf-vrrp:vrrp": {
	"vrrp-instance": [		"vrrp-instance": [
	{		{
	"vrid": 1,		"vrid": 1,
	"version": "vrrp-v3",		"version": "vrrp-v3",
	"priority": 200,		"priority": 200,
	"advertise-interval-centi-sec": 50,		"advertise-interval-centi-sec": 50,
	"virtual-ipv4-addresses": {		"virtual-ipv4-addresses": {
	"virtual-ipv4-address": [		"virtual-ipv4-address": [
	"ipv4-address": "10.0.0.1"		"ipv4-address": "192.0.2.1"
	]		]
	}		}
	}		}
	]		]
	}		}
	}		}
	}		}
	]		]
	},		},
	skipping to change at page 41, line 26 ¶		skipping to change at page 41, line 26 ¶
	"phys-address": "00:0C:42:E5:B1:E9",		"phys-address": "00:0C:42:E5:B1:E9",
	"oper-status": "up",		"oper-status": "up",
	"statistics": {		"statistics": {
	"discontinuity-time": "2016-10-24T17:11:27+02:00"		"discontinuity-time": "2016-10-24T17:11:27+02:00"
	},		},
	"ietf-ip:ipv4": {		"ietf-ip:ipv4": {
	"forwarding": true,		"forwarding": true,
	"mtu": 1500,		"mtu": 1500,
	"address": [		"address": [
	{		{
	"ip": "10.0.1.1",		"ip": "192.0.2.11",
	"prefix-length": 24		"prefix-length": 24
	}		}
	]		]
	"ietf-vrrp:vrrp": {		"ietf-vrrp:vrrp": {
	"vrrp-instance": [		"vrrp-instance": [
	{		{
	"vrid": 1,		"vrid": 1,
	"version": "vrrp-v3",		"version": "vrrp-v3",
	"log-state-change": false,		"log-state-change": false,
	"preempt": {		"preempt": {
	"enabled": true,		"enabled": true,
	"hold-time": 0		"hold-time": 0
	}		}
	"priority": 200,		"priority": 200,
	"accept-mode": false,		"accept-mode": false,
	"advertise-interval-centi-sec": 50,		"advertise-interval-centi-sec": 50,
	"virtual-ipv4-addresses": {		"virtual-ipv4-addresses": {
	"virtual-ipv4-address": [		"virtual-ipv4-address": [
	"ipv4-address": "10.0.0.1"		"ipv4-address": "192.0.2.1"
	]		]
	},		},
	"state": "master",		"state": "master",
	"is-owner": false,		"is-owner": false,
	"last-adv-source": "10.1.1.1",		"last-adv-source": "192.0.2.11",
	"up-datetime": "2016-10-24T17:11:27+02:00",		"up-datetime": "2016-10-24T17:11:27+02:00",
	"master-down-interval": 161,		"master-down-interval": 161,
	"skew-time": 11,		"skew-time": 11,
	"last-event": "vrrp-event-interface-up",		"last-event": "vrrp-event-interface-up",
	"new-master-reason": "priority",		"new-master-reason": "priority",
	"statistics": {		"statistics": {
	"discontinuity-datetime":		"discontinuity-datetime":
	"2016-10-24T17:11:27+02:00",		"2016-10-24T17:11:27+02:00",
	"master-transitions": 2,		"master-transitions": 2,
	"advertisement-recv": 20,		"advertisement-recv": 20,
End of changes. 22 change blocks.
	41 lines changed or deleted		35 lines changed or added
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