--- 1/draft-ietf-ccamp-flexible-grid-rsvp-te-ext-03.txt 2015-11-19 19:15:15.538068421 -0800 +++ 2/draft-ietf-ccamp-flexible-grid-rsvp-te-ext-04.txt 2015-11-19 19:15:15.578069381 -0800 @@ -1,55 +1,54 @@ CCAMP Working Group Fatai Zhang Internet-Draft Xian Zhang Intended status: Standards Track Huawei Adrian Farrel Old Dog Consulting Oscar Gonzalez de Dios Telefonica D. Ceccarelli 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 - 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 Label Switched Paths (LSPs) in a GMPLS-controlled network that includes devices using the flexible optical grid. Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six - months and may be updated, replaced, or obsoleted by other - documents at any time. It is inappropriate to use Internet-Drafts - as reference material or to cite them other than as "work in - progress." + months and may be updated, replaced, or obsoleted by other documents + at any time. It is inappropriate to use Internet-Drafts as + reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at 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 (c) 2015 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with @@ -97,31 +96,33 @@ 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 "flexible grids", known as "flexi-grid". The terms "frequency slot" (i.e., the frequency range allocated to a specific channel and unavailable to other channels within a flexible grid) and "slot 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. [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 Element (PCE) control of Wavelength Switched Optical Networks (WSONs), and [WSON-SIG] describes the requirements and protocol extensions for signaling to set up Label Switched Paths (LSPs) in WSONs. This document describes the additional requirements and protocol - extensions for RSVP-TE signaling to set up LSPs in networks that - support the flexi-grid. + extensions to Resource reSerVation Protocol-Traffic Engineering + (RSVP-TE) [RFC3473] to set up LSPs in networks that support the + flexi-grid. 2. Terminology For terminology related to flexi-grid, please refer to [FLEX-FWK] and [G.694.1]. 2.1. Conventions used in this document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this @@ -247,21 +247,22 @@ same format as shown in Figure 1. 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 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | m | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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. 4.1.1. Applicability to Fixed Grid Networks 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 parameters. The fixed grid channel spacings (12.5 GHz, 25 GHz, 50 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 @@ -430,42 +431,45 @@ [G.694.1] ITU-T Recommendation G.694.1 (revision 2), "Spectral grids for WDM applications: DWDM frequency grid", February 2012. [FLEX-LBL]King, D., Farrel, A. and Y. Li, "Generalized Labels for the Flexi-Grid in Lambda Switched Capable (LSC) Label Switching Routers", draft-ietf-ccamp-flexigrid-lambda- label, work in progress. 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, - "Resource ReServation Protocol (RSVP) - Version 1, + "Resource ReServation Protocol (RSVP) -- Version 1, Functional Specification", RFC2205, September 1997. [RFC5920] L. Fang et al., "Security Framework for MPLS and GMPLS Networks", RFC 5920, July 2010. [RFC6163] Y. Lee, G. Bernstein and W. Imajuku, "Framework for GMPLS and Path Computation Element (PCE) Control of Wavelength Switched Optical Networks (WSONs)", RFC 6163, April 2011. [RFC6982] Sheffer, Y. and A. Farrel, "Improving Awareness of Running Code: The Implementation Status Section", RFC 6982, July 2013. [RFC Editor Note: This reference can be removed when Section 7 is removed] [FLEX-FWK] Gonzalez de Dios, O, Casellas R., Zhang, F., Fu, X., Ceccarelli, D., and I. Hussain, "Framework and 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. [WSON-SIG] G. Bernstein, Sugang Xu, Y. Lee, G. Martinelli and Hiroaki Harai, "Signaling Extensions for Wavelength Switched Optical Networks", draft-ietf-ccamp-wson- signaling, work in progress. 11. Contributors' Addresses Ramon Casellas