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.
Internet-Drafts are draft documents valid for a maximum of six Internet-Drafts are draft documents valid for a maximum of six
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
 End of changes. 15 change blocks. 
19 lines changed or deleted 24 lines changed or added

This html diff was produced by rfcdiff 1.42. The latest version is available from http://tools.ietf.org/tools/rfcdiff/