draft-ietf-ccamp-gmpls-ospf-g709v3-01.txt   draft-ietf-ccamp-gmpls-ospf-g709v3-02.txt 
CCAMP Working Group D. Ceccarelli, Ed. CCAMP Working Group D. Ceccarelli, Ed.
Internet-Draft D. Caviglia Internet-Draft D. Caviglia
Intended status: Standards Track Ericsson Intended status: Standards Track Ericsson
Expires: July 21, 2012 F. Zhang Expires: October 15, 2012 F. Zhang
D. Li D. Li
Huawei Technologies Huawei Technologies
S. Belotti S. Belotti
P. Grandi P. Grandi
Alcatel-Lucent Alcatel-Lucent
R. Rao R. Rao
K. Pithewan K. Pithewan
Infinera Corporation Infinera Corporation
J. Drake J. Drake
Juniper Juniper
January 18, 2012 April 13, 2012
Traffic Engineering Extensions to OSPF for Generalized MPLS (GMPLS) Traffic Engineering Extensions to OSPF for Generalized MPLS (GMPLS)
Control of Evolving G.709 OTN Networks Control of Evolving G.709 OTN Networks
draft-ietf-ccamp-gmpls-ospf-g709v3-01 draft-ietf-ccamp-gmpls-ospf-g709v3-02
Abstract Abstract
The recent revision of ITU-T Recommendation G.709 [G709-V3] has The recent revision of ITU-T Recommendation G.709 [G709-V3] has
introduced new fixed and flexible ODU containers, enabling optimized introduced new fixed and flexible ODU containers, enabling optimized
support for an increasingly abundant service mix. support for an increasingly abundant service mix.
This document describes OSPF routing protocol extensions to support This document describes OSPF routing protocol extensions to support
Generalized MPLS (GMPLS) control of all currently defined ODU Generalized MPLS (GMPLS) control of all currently defined ODU
containers, in support of both sub-lambda and lambda level routing containers, in support of both sub-lambda and lambda level routing
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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 July 21, 2012. This Internet-Draft will expire on October 15, 2012.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2012 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
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5.2.1. Example of different TSGs . . . . . . . . . . . . . . 16 5.2.1. Example of different TSGs . . . . . . . . . . . . . . 16
5.3. Example of ODUflex advertisement . . . . . . . . . . . . . 17 5.3. Example of ODUflex advertisement . . . . . . . . . . . . . 17
5.4. Example of single stage muxing . . . . . . . . . . . . . . 19 5.4. Example of single stage muxing . . . . . . . . . . . . . . 19
5.5. Example of multi stage muxing - Unbundled link . . . . . . 21 5.5. Example of multi stage muxing - Unbundled link . . . . . . 21
5.6. Example of multi stage muxing - Bundled links . . . . . . 22 5.6. Example of multi stage muxing - Bundled links . . . . . . 22
5.7. Example of component links with non homogeneous 5.7. Example of component links with non homogeneous
hierarchies . . . . . . . . . . . . . . . . . . . . . . . 24 hierarchies . . . . . . . . . . . . . . . . . . . . . . . 24
6. Compatibility . . . . . . . . . . . . . . . . . . . . . . . . 26 6. Compatibility . . . . . . . . . . . . . . . . . . . . . . . . 26
7. Security Considerations . . . . . . . . . . . . . . . . . . . 26 7. Security Considerations . . . . . . . . . . . . . . . . . . . 26
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 26 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 26
9. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 26 9. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 27
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 28 10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 28
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 28 11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 28
11.1. Normative References . . . . . . . . . . . . . . . . . . . 28 11.1. Normative References . . . . . . . . . . . . . . . . . . . 28
11.2. Informative References . . . . . . . . . . . . . . . . . . 29 11.2. Informative References . . . . . . . . . . . . . . . . . . 29
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 29 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 30
1. Introduction 1. Introduction
G.709 OTN [G709-V3] includes new fixed and flexible ODU containers, 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 two types of Tributary Slots (i.e., 1.25Gbps and 2.5Gbps), and
supports various multiplexing relationships (e.g., ODUj multiplexed supports various multiplexing relationships (e.g., ODUj multiplexed
into ODUk (j<k)), two different tributary slots for ODUk (K=1, 2, 3) into ODUk (j<k)), two different tributary slots for ODUk (K=1, 2, 3)
and ODUflex service type, which is being standardized in ITU-T. In and ODUflex service type, which is being standardized in ITU-T. In
order to present this information in the routing process, this order to present this information in the routing process, this
document provides OTN technology specific encoding for OSPF-TE. document provides OTN technology specific encoding for OSPF-TE.
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stage#1=ODU2 | Stage#2=ODU4 | Padding | | Stage#1=ODU2 | Stage#2=ODU4 | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Unres ODU0 at Prio 0 =80 | Unres ODU0 at Prio 3 =80 | | Unres ODU0 at Prio 0 =80 | Unres ODU0 at Prio 3 =80 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 15: Example 7 - Multi stage muxing - Non homogeneous Figure 15: Example 7 - Multi stage muxing - Non homogeneous
hierarchies hierarchies
6. Compatibility 6. Compatibility
In order to achieve backward compatibility with implementations based All implementations of this document MUST support advertisements as
on [RFC4328] both the [RFC4328] based ISCD and the ISCD defined in defined in this document and [RFC4328]. Implementations SHOULD
this document MUST be advertised. support the configuration of which advertisement procedures are
followed. This approach enables the use of one type of
advertisements when only type is needed, and the differentiation of
legacy nodes and nodes supporting this document when both are
operating in the same network.
7. Security Considerations 7. Security Considerations
This document specifies the contents of Opaque LSAs in OSPFv2. As This document specifies the contents of Opaque LSAs in OSPFv2. As
Opaque LSAs are not used for SPF computation or normal routing, the Opaque LSAs are not used for SPF computation or normal routing, the
extensions specified here have no direct effect on IP routing. extensions specified here have no direct effect on IP routing.
Tampering with GMPLS TE LSAs may have an effect on the underlying Tampering with GMPLS TE LSAs may have an effect on the underlying
transport (optical and/or SONET-SDH) network. [RFC3630] suggests transport (optical and/or SONET-SDH) network. [RFC3630] suggests
mechanisms such as [RFC2154] to protect the transmission of this mechanisms such as [RFC2154] to protect the transmission of this
information, and those or other mechanisms should be used to secure information, and those or other mechanisms should be used to secure
and/or authenticate the information carried in the Opaque LSAs. and/or authenticate the information carried in the Opaque LSAs.
8. IANA Considerations 8. IANA Considerations
TBD Upon approval of this document, IANA will make the assignment of a
new Switching Capability value for the existing ISCD located at http:
//www.iana.org/assignments/ospf-traffic-eng-tlvs/
ospf-traffic-eng-tlvs.xml:
15 Interface Switching Capability Descriptor [RFC4203]
Switching capability Description Reference
---------------------- -------------------------- ----------
101 (suggested) OTN-TDM capable (OTN-TDM) [This.I-D]
This document defines the following sub-TLVs of the ISCD TLV:
Value Sub-TLV
----- -------------------------------------------------
1 Unreserved Bandwidth for fixed containers
2 Unreserved/MAX LSP bandwidth for flexible containers
9. Contributors 9. Contributors
Xiaobing Zi, Huawei Technologies Xiaobing Zi, Huawei Technologies
Email: zixiaobing@huawei.com Email: zixiaobing@huawei.com
Francesco Fondelli, Ericsson Francesco Fondelli, Ericsson
Email: francesco.fondelli@ericsson.com Email: francesco.fondelli@ericsson.com
Marco Corsi, Altran Italia Marco Corsi, Altran Italia
EMail: marco.corsi@altran.it EMail: corsi.marco@gmail.com
Eve Varma, Alcatel-Lucent Eve Varma, Alcatel-Lucent
EMail: eve.varma@alcatel-lucent.com EMail: eve.varma@alcatel-lucent.com
Jonathan Sadler, Tellabs Jonathan Sadler, Tellabs
EMail: jonathan.sadler@tellabs.com EMail: jonathan.sadler@tellabs.com
Lyndon Ong, Ciena Lyndon Ong, Ciena
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