draft-ietf-pce-wson-routing-wavelength-00.txt   draft-ietf-pce-wson-routing-wavelength-01.txt 
Network Working Group Y. Lee Network Working Group Y. Lee
Internet Draft Huawei Internet Draft Huawei
Intended status: Standard Track Intended status: Standard Track
Expires: March 2010 G. Bernstein Expires: September 2010 G. Bernstein
Grotto Networking Grotto Networking
Jonas Martensson Jonas Martensson
Acreo Acreo
T. Takeda T. Takeda
NTT NTT
T. Tsuritani T. Tsuritani
KDDI KDDI
September 23, 2009 March 1, 2010
PCEP Requirements for WSON Routing and Wavelength Assignment PCEP Requirements for WSON Routing and Wavelength Assignment
draft-ietf-pce-wson-routing-wavelength-00.txt draft-ietf-pce-wson-routing-wavelength-01.txt
Status of this Memo Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
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other groups may also distribute working documents as Internet- other groups may also distribute working documents as Internet-
Drafts. Drafts.
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
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material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
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This Internet-Draft will expire on March 23, 2009. This Internet-Draft will expire on August 1, 2010.
Copyright Notice Copyright Notice
Copyright (c) 2009 IETF Trust and the persons identified as the Copyright (c) 2010 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
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1. Introduction...................................................3 1. Introduction...................................................3
1.1. WSON RWA Processes........................................4 1.1. WSON RWA Processes........................................4
2. WSON PCE Architectures and Requirements........................5 2. WSON PCE Architectures and Requirements........................5
2.1. RWA PCC to PCE Interface..................................6 2.1. RWA PCC to PCE Interface..................................6
2.1.1. A new RWA path request...............................6 2.1.1. A new RWA path request...............................6
2.1.2. An RWA path re-optimization request..................6 2.1.2. An RWA path re-optimization request..................6
2.1.3. Wavelength Range Constraint..........................6 2.1.3. Wavelength Range Constraint..........................6
3. Manageability Considerations...................................7 3. Manageability Considerations...................................7
3.1. Control of Function and Policy............................7 3.1. Control of Function and Policy............................7
3.2. Information and Data Models, e.g. MIB module..............7 3.2. Information and Data Models, e.g. MIB module..............8
3.3. Liveness Detection and Monitoring.........................7 3.3. Liveness Detection and Monitoring.........................8
3.4. Verifying Correct Operation...............................8 3.4. Verifying Correct Operation...............................8
3.5. Requirements on Other Protocols and Functional Components.8 3.5. Requirements on Other Protocols and Functional Components.8
3.6. Impact on Network Operation...............................8 3.6. Impact on Network Operation...............................8
4. Security Considerations........................................8 4. Security Considerations........................................8
5. IANA Considerations............................................8 5. IANA Considerations............................................9
6. Acknowledgments................................................8 6. Acknowledgments................................................9
7. References.....................................................9 7. References.....................................................9
7.1. Normative References......................................9 7.1. Normative References......................................9
7.2. Informative References....................................9 7.2. Informative References...................................10
Authors' Addresses...............................................10 Authors' Addresses...............................................10
Intellectual Property Statement..................................10 Intellectual Property Statement..................................11
Disclaimer of Validity...........................................11 Disclaimer of Validity...........................................12
1. Introduction 1. Introduction
[RFC4655] defines the PCE based Architecture and explains how a Path [RFC4655] defines the PCE based Architecture and explains how a Path
Computation Element (PCE) may compute Label Switched Paths (LSP) in Computation Element (PCE) may compute Label Switched Paths (LSP) in
Multiprotocol Label Switching Traffic Engineering (MPLS-TE) and Multiprotocol Label Switching Traffic Engineering (MPLS-TE) and
Generalized MPLS (GMPLS) networks at the request of Path Computation Generalized MPLS (GMPLS) networks at the request of Path Computation
Clients (PCCs). A PCC is shown to be any network component that Clients (PCCs). A PCC is shown to be any network component that
makes such a request and may be for instance an Optical Switching makes such a request and may be for instance an Optical Switching
Element within a Wavelength Division Multiplexing (WDM) network. The Element within a Wavelength Division Multiplexing (WDM) network. The
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For any PCReq Message that is associated with a request for For any PCReq Message that is associated with a request for
wavelength assignment the requester (PCC) MUST be able to specify a wavelength assignment the requester (PCC) MUST be able to specify a
restriction on the wavelengths to be used. restriction on the wavelengths to be used.
Note that the requestor (PCC) is NOT required to furnish any range Note that the requestor (PCC) is NOT required to furnish any range
restrictions. This restriction is to be interpreted by the PCE as a restrictions. This restriction is to be interpreted by the PCE as a
constraint on the tuning ability of the origination laser constraint on the tuning ability of the origination laser
transmitter. transmitter.
2.1.4. Wavelength Policy Constraint
The PCReq Message May include specific operator's policy information
for WA (E.g., random assignment, descending order, ascending order,
etc.)
3. Manageability Considerations 3. Manageability Considerations
Manageability of WSON Routing and Wavelength Assignment (RWA) with Manageability of WSON Routing and Wavelength Assignment (RWA) with
PCE must address the following considerations: PCE must address the following considerations:
3.1. Control of Function and Policy 3.1. Control of Function and Policy
In addition to the parameters already listed in Section 8.1 of In addition to the parameters already listed in Section 8.1 of
[PCEP], a PCEP implementation SHOULD allow configuring the following [PCEP], a PCEP implementation SHOULD allow configuring the following
PCEP session parameters on a PCC: PCEP session parameters on a PCC:
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