CCAMP Working Group D. Ceccarelli Internet-Draft D. Caviglia Intended status: Standards Track Ericsson Expires: April 25, 2011 F. Zhang D. Li Huawei Technologies Y. Xu CATR S. Belotti P. Grandi Alcatel-Lucent J. Drake Juniper October 22, 2010 Traffic Engineering Extensions to OSPF for Generalized MPLS (GMPLS) Control of Evolving G.709 OTN Networks draft-ceccarelli-ccamp-gmpls-ospf-g709-04 Abstract The recent revision of ITU-T Recommendation G.709 [G709-V3] has introduced new fixed and flexible ODU containers, enabling optimized support for an increasingly abundant service mix. This document describes OSPF routing protocol extensions to support Generalized MPLS (GMPLS) control of all currently defined ODU containers, in support of both sub-lambda and lambda level routing granularity. Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. 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." This Internet-Draft will expire on April 25, 2011. Ceccarelli, et al. Expires April 25, 2011 [Page 1] Internet-Draft OSPF-TE extensions for OTN support October 2010 Copyright Notice Copyright (c) 2010 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 respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3 2. OSPF Extensions . . . . . . . . . . . . . . . . . . . . . . . 3 2.1. Bandwidth Accounting sub-TLV . . . . . . . . . . . . . . . 4 2.2. Example using BA sub-TLV . . . . . . . . . . . . . . . . . 7 2.3. Example of T and S bits usage . . . . . . . . . . . . . . 13 3. Scalability Improvement . . . . . . . . . . . . . . . . . . . 14 4. Compatibility Considerations . . . . . . . . . . . . . . . . . 14 5. Security Considerations . . . . . . . . . . . . . . . . . . . 14 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15 7. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 15 8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 16 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 16 9.1. Normative References . . . . . . . . . . . . . . . . . . . 16 9.2. Informative References . . . . . . . . . . . . . . . . . . 17 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 17 Ceccarelli, et al. Expires April 25, 2011 [Page 2] Internet-Draft OSPF-TE extensions for OTN support October 2010 1. Introduction G.709 OTN [G709-V3] includes new fixed and flexible ODU containers, two types of Tributary Slots (i.e., 1.25Gbps and 2.5Gbps), and supports various multiplexing relationships (e.g., ODUj multiplexed into ODUk (j