draft-ietf-ccamp-flexible-grid-rsvp-te-ext-03.txt		draft-ietf-ccamp-flexible-grid-rsvp-te-ext-04.txt
	CCAMP Working Group Fatai Zhang		CCAMP Working Group Fatai Zhang
	Internet-Draft Xian Zhang		Internet-Draft Xian Zhang
	Intended status: Standards Track Huawei		Intended status: Standards Track Huawei
	Adrian Farrel		Adrian Farrel
	Old Dog Consulting		Old Dog Consulting
	Oscar Gonzalez de Dios		Oscar Gonzalez de Dios
	Telefonica		Telefonica
	D. Ceccarelli		D. Ceccarelli
	Ericsson		Ericsson
	Expires: Feburary 02, 2016 August 03, 2015		Expires: May 19, 2016 November 20, 2015
	RSVP-TE Signaling Extensions in support of Flexible Grid		RSVP-TE Signaling Extensions in support of Flexi-grid DWDM networks
	draft-ietf-ccamp-flexible-grid-rsvp-te-ext-03.txt		draft-ietf-ccamp-flexible-grid-rsvp-te-ext-04.txt
	Abstract		Abstract
	This memo describes the extensions to the Resource reserVation		This memo describes the extensions to the Resource reSerVation
	Protocol Traffic Engineering (RSVP-TE) signaling protocol to support		Protocol Traffic Engineering (RSVP-TE) signaling protocol to support
	Label Switched Paths (LSPs) in a GMPLS-controlled network that		Label Switched Paths (LSPs) in a GMPLS-controlled network that
	includes devices using the flexible optical grid.		includes devices using the flexible optical grid.
	Status of this Memo		Status of this Memo
	This Internet-Draft is submitted to IETF in full conformance with		This Internet-Draft is submitted to IETF in full conformance with
	the provisions of BCP 78 and BCP 79.		the provisions of BCP 78 and BCP 79.
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF), its areas, and its working groups. Note that		Task Force (IETF), its areas, and its working groups. Note that
	other groups may also distribute working documents as Internet-		other groups may also distribute working documents as Internet-
	Drafts.		Drafts.
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	months and may be updated, replaced, or obsoleted by other		months and may be updated, replaced, or obsoleted by other documents
	documents at any time. It is inappropriate to use Internet-Drafts		at any time. It is inappropriate to use Internet-Drafts as
	as reference material or to cite them other than as "work in		reference material or to cite them other than as "work in progress."
	progress."
	The list of current Internet-Drafts can be accessed at		The list of current Internet-Drafts can be accessed at
	http://www.ietf.org/ietf/1id-abstracts.txt.		http://www.ietf.org/ietf/1id-abstracts.txt.
	The list of Internet-Draft Shadow Directories can be accessed at		The list of Internet-Draft Shadow Directories can be accessed at
	http://www.ietf.org/shadow.html.		http://www.ietf.org/shadow.html.
	This Internet-Draft will expire on February 02, 2016.		This Internet-Draft will expire on May 19, 2016.
	Copyright Notice		Copyright Notice
	Copyright (c) 2015 IETF Trust and the persons identified as the		Copyright (c) 2015 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		carefully, as they describe your rights and restrictions with
	skipping to change at page 2, line 26		skipping to change at page 2, line 26
	Table of Contents		Table of Contents
	1. Introduction ................................................ 2		1. Introduction ................................................ 2
	2. Terminology ................................................. 3		2. Terminology ................................................. 3
	2.1. Conventions used in this document .......................3		2.1. Conventions used in this document .......................3
	3. Requirements for Flexible Grid Signaling .....................3		3. Requirements for Flexible Grid Signaling .....................3
	3.1. Slot Width ............................................. 4		3.1. Slot Width ............................................. 4
	3.2. Frequency Slot ......................................... 4		3.2. Frequency Slot ......................................... 4
	4. Protocol Extensions ......................................... 5		4. Protocol Extensions ......................................... 5
	4.1. Traffic Parameters...................................... 5		4.1. Traffic Parameters ......................................5
	4.1.1. Applicability to Fixed Grid Networks............... 6		4.1.1. Applicability to Fixed Grid Networks ...............6
	4.2. Generalized Label....................................... 6		4.2. Generalized Label....................................... 6
	4.3. Signaling Procedures.................................... 7		4.3. Signaling Procedures.................................... 7
	5. IANA Considerations ......................................... 7		5. IANA Considerations ......................................... 7
	5.1. RSVP Objects Class Types................................ 7		5.1. RSVP Objects Class Types................................ 7
	6. Manageability Considerations................................. 8		6. Manageability Considerations................................. 8
	7. Implementation Status........................................ 8		7. Implementation Status........................................ 8
	7.1. Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)8		7.1. Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)8
	8. Acknowledgments ............................................ 10		8. Acknowledgments ............................................ 10
	9. Security Considerations..................................... 10		9. Security Considerations..................................... 10
	10. References ................................................ 10		10. References ................................................ 10
	10.1. Normative References.................................. 10		10.1. Normative References.................................. 10
	10.2. Informative References................................ 10		10.2. Informative References................................ 10
	11. Contributors' Addresses.................................... 11		11. Contributors' Addresses.................................... 11
	12. Authors' Addresses......................................... 12		12. Authors' Addresses ......................................... 12
	1. Introduction		1. Introduction
	[G.694.1] defines the Dense Wavelength Division Multiplexing (DWDM)		[G.694.1] defines the Dense Wavelength Division Multiplexing (DWDM)
	frequency grids for Wavelength Division Multiplexing (WDM)		frequency grids for Wavelength Division Multiplexing (WDM)
	applications. A frequency grid is a reference set of frequencies		applications. A frequency grid is a reference set of frequencies
	used to denote allowed nominal central frequencies that may be used		used to denote allowed nominal central frequencies that may be used
	for defining applications that utilize WDM transmission. The channel		for defining applications that utilize WDM transmission. The channel
	spacing is the frequency spacing between two allowed nominal central		spacing is the frequency spacing between two allowed nominal central
	frequencies. All of the wavelengths on a fiber use different central		frequencies. All of the wavelengths on a fiber use different central
	skipping to change at page 3, line 18		skipping to change at page 3, line 18
	Fixed grid channel spacing is selected from 12.5 GHz, 25 GHz, 50 GHz,		Fixed grid channel spacing is selected from 12.5 GHz, 25 GHz, 50 GHz,
	100 GHz and integer multiples of 100 GHz. But [G.694.1] also defines		100 GHz and integer multiples of 100 GHz. But [G.694.1] also defines
	"flexible grids", known as "flexi-grid". The terms "frequency slot"		"flexible grids", known as "flexi-grid". The terms "frequency slot"
	(i.e., the frequency range allocated to a specific channel and		(i.e., the frequency range allocated to a specific channel and
	unavailable to other channels within a flexible grid) and "slot		unavailable to other channels within a flexible grid) and "slot
	width" (i.e., the full width of a frequency slot in a flexible grid)		width" (i.e., the full width of a frequency slot in a flexible grid)
	are introduced in [G.694.1] to define a flexible grid.		are introduced in [G.694.1] to define a flexible grid.
	[FLEX-FWK] defines a framework and the associated control plane		[FLEX-FWK] defines a framework and the associated control plane
	requirements for the GMPLS based control of flexi-grid DWDM networks.		requirements for the Generalized Multi-Protocol Label Switching
			(GMPLS) [RFC3945] based control of flexi-grid DWDM networks.
	[RFC6163] provides a framework for GMPLS and Path Computation		[RFC6163] provides a framework for GMPLS and Path Computation
	Element (PCE) control of Wavelength Switched Optical Networks		Element (PCE) control of Wavelength Switched Optical Networks
	(WSONs), and [WSON-SIG] describes the requirements and protocol		(WSONs), and [WSON-SIG] describes the requirements and protocol
	extensions for signaling to set up Label Switched Paths (LSPs) in		extensions for signaling to set up Label Switched Paths (LSPs) in
	WSONs.		WSONs.
	This document describes the additional requirements and protocol		This document describes the additional requirements and protocol
	extensions for RSVP-TE signaling to set up LSPs in networks that		extensions to Resource reSerVation Protocol-Traffic Engineering
	support the flexi-grid.		(RSVP-TE) [RFC3473] to set up LSPs in networks that support the
			flexi-grid.
	2. Terminology		2. Terminology
	For terminology related to flexi-grid, please refer to [FLEX-FWK]		For terminology related to flexi-grid, please refer to [FLEX-FWK]
	and [G.694.1].		and [G.694.1].
	2.1. Conventions used in this document		2.1. Conventions used in this document
	The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",		The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
	"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this		"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
	skipping to change at page 6, line 26		skipping to change at page 6, line 29
	same format as shown in Figure 1.		same format as shown in Figure 1.
	0 1 2 3		0 1 2 3
	0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1		0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	| m | Reserved |		| m | Reserved |
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	Figure 1: The SSON Traffic Parameters		Figure 1: The SSON Traffic Parameters
	m (16 bits): the slot width is specified by m*12.5 GHz.		m (16 bits): a positive integer and the slot width is specified by
			m*12.5 GHz.
	The Reserved bits MUST be set to zero and ignored upon receipt.		The Reserved bits MUST be set to zero and ignored upon receipt.
	4.1.1. Applicability to Fixed Grid Networks		4.1.1. Applicability to Fixed Grid Networks
	Note that the slot width (i.e., traffic parameters) of a fixed grid		Note that the slot width (i.e., traffic parameters) of a fixed grid
	defined in [G.694.1] can also be specified by using the SSON traffic		defined in [G.694.1] can also be specified by using the SSON traffic
	parameters. The fixed grid channel spacings (12.5 GHz, 25 GHz, 50		parameters. The fixed grid channel spacings (12.5 GHz, 25 GHz, 50
	GHz, 100 GHz and integer multiples of 100 GHz) are also the		GHz, 100 GHz and integer multiples of 100 GHz) are also the
	multiples of 12.5 GHz, so the m parameter can be used to represent		multiples of 12.5 GHz, so the m parameter can be used to represent
	skipping to change at page 10, line 32		skipping to change at page 10, line 32
	requirements levels", RFC 2119, March 1997.		requirements levels", RFC 2119, March 1997.
	[RFC3473] L. Berger, Ed., "Generalized Multi-Protocol Label		[RFC3473] L. Berger, Ed., "Generalized Multi-Protocol Label
	Switching (GMPLS) Signaling Resource ReserVation Protocol-		Switching (GMPLS) Signaling Resource ReserVation Protocol-
	Traffic Engineering (RSVP-TE) Extensions", RFC 3473,		Traffic Engineering (RSVP-TE) Extensions", RFC 3473,
	January 2003.		January 2003.
	[G.694.1] ITU-T Recommendation G.694.1 (revision 2), "Spectral grids		[G.694.1] ITU-T Recommendation G.694.1 (revision 2), "Spectral grids
	for WDM applications: DWDM frequency grid", February 2012.		for WDM applications: DWDM frequency grid", February 2012.
	[FLEX-LBL]King, D., Farrel, A. and Y. Li, "Generalized Labels for		[FLEX-LBL] King, D., Farrel, A. and Y. Li, "Generalized Labels for
	the Flexi-Grid in Lambda Switched Capable (LSC) Label		the Flexi-Grid in Lambda Switched Capable (LSC) Label
	Switching Routers", draft-ietf-ccamp-flexigrid-lambda-		Switching Routers", draft-ietf-ccamp-flexigrid-lambda-
	label, work in progress.		label, work in progress.
	10.2. Informative References		10.2. Informative References
			[RFC3945] Mannie, E., "Generalized Multi-Protocol Label Switching
			(GMPLS)" Architecture, RFC3945, October 2004.
	[RFC2205] Braden, R., Zhang L., Berson, S., Herzog, S. and S. Jamin,		[RFC2205] Braden, R., Zhang L., Berson, S., Herzog, S. and S. Jamin,
	"Resource ReServation Protocol (RSVP) - Version 1,		"Resource ReServation Protocol (RSVP) -- Version 1,
	Functional Specification", RFC2205, September 1997.		Functional Specification", RFC2205, September 1997.
	[RFC5920] L. Fang et al., "Security Framework for MPLS and GMPLS		[RFC5920] L. Fang et al., "Security Framework for MPLS and GMPLS
	Networks", RFC 5920, July 2010.		Networks", RFC 5920, July 2010.
	[RFC6163] Y. Lee, G. Bernstein and W. Imajuku, "Framework for GMPLS		[RFC6163] Y. Lee, G. Bernstein and W. Imajuku, "Framework for GMPLS
	and Path Computation Element (PCE) Control of Wavelength		and Path Computation Element (PCE) Control of Wavelength
	Switched Optical Networks (WSONs)", RFC 6163, April 2011.		Switched Optical Networks (WSONs)", RFC 6163, April 2011.
	[RFC6982] Sheffer, Y. and A. Farrel, "Improving Awareness of Running		[RFC6982] Sheffer, Y. and A. Farrel, "Improving Awareness of Running
	Code: The Implementation Status Section", RFC 6982, July		Code: The Implementation Status Section", RFC 6982, July
	2013.		2013.
	[RFC Editor Note: This reference can be removed when Section 7 is		[RFC Editor Note: This reference can be removed when Section 7 is
	removed]		removed]
	[FLEX-FWK] Gonzalez de Dios, O, Casellas R., Zhang, F., Fu, X.,		[FLEX-FWK] Gonzalez de Dios, O, Casellas R., Zhang, F., Fu, X.,
	Ceccarelli, D., and I. Hussain, "Framework and		Ceccarelli, D., and I. Hussain, "Framework and
	Requirements for GMPLS based control of Flexi-grid DWDM		Requirements for GMPLS based control of Flexi-grid DWDM
	networks", draft-ietf-cammp-flexi-grid-fwk, work in		networks", draft-ietf-ccamp-flexi-grid-fwk, work in
	progress.		progress.
	[WSON-SIG] G. Bernstein, Sugang Xu, Y. Lee, G. Martinelli and		[WSON-SIG] G. Bernstein, Sugang Xu, Y. Lee, G. Martinelli and
	Hiroaki Harai, "Signaling Extensions for Wavelength		Hiroaki Harai, "Signaling Extensions for Wavelength
	Switched Optical Networks", draft-ietf-ccamp-wson-		Switched Optical Networks", draft-ietf-ccamp-wson-
	signaling, work in progress.		signaling, work in progress.
	11. Contributors' Addresses		11. Contributors' Addresses
	Ramon Casellas		Ramon Casellas
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