draft-ietf-ccamp-rwa-info-16.txt   draft-ietf-ccamp-rwa-info-17.txt 
Network Working Group Y. Lee Network Working Group Y. Lee
Internet Draft Huawei Internet Draft Huawei
Intended status: Informational G. Bernstein Intended status: Informational G. Bernstein
Expires: February 2013 Grotto Networking Expires: August 2013 Grotto Networking
D. Li D. Li
Huawei Huawei
W. Imajuku W. Imajuku
NTT NTT
August 16, 2012 February 6, 2013
Routing and Wavelength Assignment Information Model for Wavelength Routing and Wavelength Assignment Information Model for Wavelength
Switched Optical Networks Switched Optical Networks
draft-ietf-ccamp-rwa-info-16.txt draft-ietf-ccamp-rwa-info-17.txt
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 documents months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress." reference material or to cite them other than as "work in 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 16, 2013. This Internet-Draft will expire on August 6, 2013.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2013 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
respect to this document. Code Components extracted from this respect to this document. Code Components extracted from this
document must include Simplified BSD License text as described in document must include Simplified BSD License text as described in
Section 4.e of the Trust Legal Provisions and are provided without Section 4.e of the Trust Legal Provisions and are provided without
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1. Introduction...................................................3 1. Introduction...................................................3
1.1. Revision History..........................................4 1.1. Revision History..........................................4
1.1.1. Changes from 01......................................4 1.1.1. Changes from 01......................................4
1.1.2. Changes from 02......................................4 1.1.2. Changes from 02......................................4
1.1.3. Changes from 03......................................5 1.1.3. Changes from 03......................................5
1.1.4. Changes from 04......................................5 1.1.4. Changes from 04......................................5
1.1.5. Changes from 05......................................5 1.1.5. Changes from 05......................................5
1.1.6. Changes from 06......................................5 1.1.6. Changes from 06......................................5
1.1.7. Changes from 07......................................5 1.1.7. Changes from 07......................................5
1.1.8. Changes from 08......................................5 1.1.8. Changes from 08......................................5
1.1.9. Changes from 09......................................5 1.1.9. Changes from 09......................................6
1.1.10. Changes from 10.....................................6 1.1.10. Changes from 10.....................................6
1.1.11. Changes from 11.....................................6 1.1.11. Changes from 11.....................................6
1.1.12. Changes from 12.....................................6 1.1.12. Changes from 12.....................................6
1.1.13. Changes from 13.....................................6 1.1.13. Changes from 13.....................................6
1.1.14. Changes from 14.....................................6 1.1.14. Changes from 14.....................................6
1.1.15. Changes from 15.....................................6 1.1.15. Changes from 15.....................................7
1.1.16. Changes from 16.....................................7
2. Terminology....................................................7 2. Terminology....................................................7
3. Routing and Wavelength Assignment Information Model............7 3. Routing and Wavelength Assignment Information Model............7
3.1. Dynamic and Relatively Static Information.................8 3.1. Dynamic and Relatively Static Information.................8
4. Node Information (General).....................................8 4. Node Information (General).....................................8
4.1. Connectivity Matrix.......................................9 4.1. Connectivity Matrix.......................................9
4.2. Shared Risk Node Group....................................9 4.2. Shared Risk Node Group....................................9
5. Node Information (WSON specific)..............................10 5. Node Information (WSON specific)..............................10
5.1. Resource Accessibility/Availability......................11 5.1. Resource Accessibility/Availability......................11
5.2. Resource Signal Constraints and Processing Capabilities..15 5.2. Resource Signal Constraints and Processing Capabilities..15
5.3. Compatibility and Capability Details.....................16 5.3. Compatibility and Capability Details.....................16
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within the ISCD information element in the case of OSPF. within the ISCD information element in the case of OSPF.
1.1.14. Changes from 14 1.1.14. Changes from 14
OIC change requested by workgroup. OIC change requested by workgroup.
1.1.15. Changes from 15 1.1.15. Changes from 15
Edits of OIC related text per CCAMP list email. Edits of OIC related text per CCAMP list email.
1.1.16. Changes from 16
Editorial changes only.
2. Terminology 2. Terminology
CWDM: Coarse Wavelength Division Multiplexing. CWDM: Coarse Wavelength Division Multiplexing.
DWDM: Dense Wavelength Division Multiplexing. DWDM: Dense Wavelength Division Multiplexing.
FOADM: Fixed Optical Add/Drop Multiplexer. FOADM: Fixed Optical Add/Drop Multiplexer.
ROADM: Reconfigurable Optical Add/Drop Multiplexer. A reduced port ROADM: Reconfigurable Optical Add/Drop Multiplexer. A reduced port
count wavelength selective switching element featuring input and count wavelength selective switching element featuring input and
output line side ports as well as add/drop side ports. output line side ports as well as add/drop side ports.
RWA: Routing and Wavelength Assignment. RWA: Routing and Wavelength Assignment.
Wavelength Conversion. The process of converting an information Wavelength Conversion: The process of converting an information
bearing optical signal centered at a given wavelength to one with bearing optical signal centered at a given wavelength to one with
"equivalent" content centered at a different wavelength. Wavelength "equivalent" content centered at a different wavelength. Wavelength
conversion can be implemented via an optical-electronic-optical conversion can be implemented via an optical-electronic-optical
(OEO) process or via a strictly optical process. (OEO) process or via a strictly optical process.
WDM: Wavelength Division Multiplexing. WDM: Wavelength Division Multiplexing.
Wavelength Switched Optical Network (WSON): A WDM based optical Wavelength Switched Optical Network (WSON): A WDM based optical
network in which switching is performed selectively based on the network in which switching is performed selectively based on the
center wavelength of an optical signal. center wavelength of an optical signal.
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state to further reveal blocking conditions on input or output to state to further reveal blocking conditions on input or output to
particular converters are for further study and not included here. particular converters are for further study and not included here.
The three stage model is shown schematically in Figure 1 and Figure The three stage model is shown schematically in Figure 1 and Figure
2. The difference between the two figures is that Figure 1 assumes 2. The difference between the two figures is that Figure 1 assumes
that each signal that can get to a resource block may do so, while that each signal that can get to a resource block may do so, while
in Figure 2 the access to sets of resource blocks is via a shared in Figure 2 the access to sets of resource blocks is via a shared
fiber which imposes its own wavelength collision constraint. The fiber which imposes its own wavelength collision constraint. The
representation of Figure 1 can have more than one input to each representation of Figure 1 can have more than one input to each
resource block since each input represents a single wavelength resource block since each input represents a single wavelength
signal, while in Figure 2 shows a single multiplexed WDM inputinput signal, while in Figure 2 shows a single multiplexed WDM input or
or output, e.g., a fiber, to/from each set of block. output, e.g., a fiber, to/from each set of block.
This model assumes N input ports (fibers), P resource blocks This model assumes N input ports (fibers), P resource blocks
containing one or more identical resources (e.g. wavelength containing one or more identical resources (e.g. wavelength
converters), and M output ports (fibers). Since not all input ports converters), and M output ports (fibers). Since not all input ports
can necessarily reach each resource block, the model starts with a can necessarily reach each resource block, the model starts with a
resource pool input matrix RI(i,p) = {0,1} whether input port i can resource pool input matrix RI(i,p) = {0,1} whether input port i can
reach potentially reach resource block p. reach potentially reach resource block p.
Since not all wavelengths can necessarily reach all the resources or Since not all wavelengths can necessarily reach all the resources or
the resources may have limited input wavelength range the model has the resources may have limited input wavelength range the model has
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Greg M. Bernstein (ed.) Greg M. Bernstein (ed.)
Grotto Networking Grotto Networking
Fremont California, USA Fremont California, USA
Phone: (510) 573-2237 Phone: (510) 573-2237
Email: gregb@grotto-networking.com Email: gregb@grotto-networking.com
Young Lee (ed.) Young Lee (ed.)
Huawei Technologies Huawei Technologies
1700 Alma Drive, Suite 100 5369 Legacy Drive, Building 3
Plano, TX 75075 Plano, TX 75023
USA USA
Phone: (972) 509-5599 (x2240) Phone: (469) 277-5838
Email: ylee@huawei.com Email: leeyoung@huawei.com
Dan Li Dan Li
Huawei Technologies Co., Ltd. Huawei Technologies Co., Ltd.
F3-5-B R&D Center, Huawei Base, F3-5-B R&D Center, Huawei Base,
Bantian, Longgang District Bantian, Longgang District
Shenzhen 518129 P.R.China Shenzhen 518129 P.R.China
Phone: +86-755-28973237 Phone: +86-755-28973237
Email: danli@huawei.com Email: danli@huawei.com
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