draft-ietf-ccamp-rwa-info-14.txt   draft-ietf-ccamp-rwa-info-15.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: September 2012 Grotto Networking Expires: February 2013 Grotto Networking
D. Li D. Li
Huawei Huawei
W. Imajuku W. Imajuku
NTT NTT
March 6, 2012 August 8, 2012
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-14.txt draft-ietf-ccamp-rwa-info-15.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.
skipping to change at page 1, line 39 skipping to change at page 1, line 39
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 September 6, 2012. This Internet-Draft will expire on September 8, 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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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......................................5
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
2. Terminology....................................................6 2. Terminology....................................................6
3. Routing and Wavelength Assignment Information Model............7 3. Routing and Wavelength Assignment Information Model............7
3.1. Dynamic and Relatively Static Information.................7 3.1. Dynamic and Relatively Static Information.................7
4. Node Information (General).....................................8 4. Node Information (General).....................................8
4.1. Connectivity Matrix.......................................8 4.1. Connectivity Matrix.......................................8
4.2. Shared Risk Node Group....................................9 4.2. Shared Risk Node Group....................................9
5. Node Information (WSON specific)...............................9 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..14 5.2. Resource Signal Constraints and Processing Capabilities..14
5.3. Compatibility and Capability Details.....................15 5.3. Compatibility and Capability Details.....................15
5.3.1. Shared Input or Output Indication...................15 5.3.1. Shared Input or Output Indication...................15
5.3.2. Modulation Type List................................15 5.3.2. Optical Interface Class List........................15
5.3.3. FEC Type List.......................................15 5.3.3. Acceptable Client Signal List.......................15
5.3.4. Bit Rate Range List.................................15 5.3.4. Processing Capability List..........................15
5.3.5. Acceptable Client Signal List.......................16
5.3.6. Processing Capability List..........................16
6. Link Information (General)....................................16 6. Link Information (General)....................................16
6.1. Administrative Group.....................................17 6.1. Administrative Group.....................................16
6.2. Interface Switching Capability Descriptor................17 6.2. Interface Switching Capability Descriptor................16
6.3. Link Protection Type (for this link).....................17 6.3. Link Protection Type (for this link).....................16
6.4. Shared Risk Link Group Information.......................17 6.4. Shared Risk Link Group Information.......................16
6.5. Traffic Engineering Metric...............................17 6.5. Traffic Engineering Metric...............................17
6.6. Port Label (Wavelength) Restrictions.....................18 6.6. Port Label (Wavelength) Restrictions.....................17
6.6.1. Port-Wavelength Exclusivity Example.................19 6.6.1. Port-Wavelength Exclusivity Example.................19
7. Dynamic Components of the Information Model...................21 7. Dynamic Components of the Information Model...................20
7.1. Dynamic Link Information (General).......................21 7.1. Dynamic Link Information (General).......................21
7.2. Dynamic Node Information (WSON Specific).................21 7.2. Dynamic Node Information (WSON Specific).................21
8. Security Considerations.......................................22 8. Security Considerations.......................................21
9. IANA Considerations...........................................22 9. IANA Considerations...........................................22
10. Acknowledgments..............................................22 10. Acknowledgments..............................................22
11. References...................................................23 11. References...................................................23
11.1. Normative References....................................23 11.1. Normative References....................................23
11.2. Informative References..................................24 11.2. Informative References..................................24
12. Contributors.................................................25 12. Contributors.................................................25
Author's Addresses...............................................26 Author's Addresses...............................................26
Intellectual Property Statement..................................26 Intellectual Property Statement..................................26
Disclaimer of Validity...........................................27 Disclaimer of Validity...........................................27
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Removed all 1st person idioms. Removed all 1st person idioms.
1.1.11. Changes from 11 1.1.11. Changes from 11
Replace all instances of "ingress" with "input" and all instances of Replace all instances of "ingress" with "input" and all instances of
"egress" with "output". Added clarifying text on relationship "egress" with "output". Added clarifying text on relationship
between resource block model and physical entities such as line between resource block model and physical entities such as line
cards. cards.
1.1.12. Changes from 12 1.1.12. Changes from 12
Section 5.2: Clarified RBNF optional elements for several Section 5.2: Clarified RBNF optional elements for several
definitions. definitions.
Section 5.3.6: Clarified RBNF optional elements for Section 5.3.6: Clarified RBNF optional elements for
<ProcessingCapabilities>. <ProcessingCapabilities>.
Editorial changes for clarity. Editorial changes for clarity.
Update the contributor list. Update the contributor list.
1.1.13. Changes from 13 1.1.13. Changes from 13
Section 7.1: Clarified that this information model does not dictate Section 7.1: Clarified that this information model does not dictate
placement of information elements in protocols. In particular, added placement of information elements in protocols. In particular, added
a caveat that the available label information element may be placed a caveat that the available label information element may be placed
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
OIC change requested by workgroup.
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
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[<ProcessingCapabilities>] <OutputConstraints>)* [<ProcessingCapabilities>] <OutputConstraints>)*
Where <ResourceSet> is a list of resource block identifiers with Where <ResourceSet> is a list of resource block identifiers with
the same characteristics. If this set is missing the constraints are the same characteristics. If this set is missing the constraints are
applied to the entire network element. applied to the entire network element.
The <InputConstraints> are signal compatibility based constraints The <InputConstraints> are signal compatibility based constraints
and/or shared access constraint indication. The details of these and/or shared access constraint indication. The details of these
constraints are defined in section 5.3. constraints are defined in section 5.3.
<InputConstraints> ::= <SharedInput> [<ModulationTypeList>] <InputConstraints> ::= <SharedInput> [<OpticalInterfaceClassList>]
[<FECTypeList>] [<BitRateRange>] [<ClientSignalList>] [<ClientSignalList>]
The <ProcessingCapabilities> are important operations that the The <ProcessingCapabilities> are important operations that the
resource (or network element) can perform on the signal. The details resource (or network element) can perform on the signal. The details
of these capabilities are defined in section 5.3. of these capabilities are defined in section 5.3.
<ProcessingCapabilities> ::= [<NumResources>] <ProcessingCapabilities> ::= [<NumResources>]
[<RegenerationCapabilities>] [<FaultPerfMon>] [<VendorSpecific>] [<RegenerationCapabilities>] [<FaultPerfMon>] [<VendorSpecific>]
The <OutputConstraints> are either restrictions on the properties of The <OutputConstraints> are either restrictions on the properties of
the signal leaving the block, options concerning the signal the signal leaving the block, options concerning the signal
properties when leaving the resource or shared fiber output properties when leaving the resource or shared fiber output
constraint indication. constraint indication.
<OutputConstraints> := <SharedOutput> [<ModulationTypeList>] <OutputConstraints> := <SharedOutput> [<OpticalInterfaceClassList>]
[<FECTypeList>]
5.3. Compatibility and Capability Details 5.3. Compatibility and Capability Details
5.3.1. Shared Input or Output Indication 5.3.1. Shared Input or Output Indication
As discussed in the previous section and shown in Figure 2 the input As discussed in the previous section and shown in Figure 2 the input
or output access to a resource block may be via a shared fiber. The or output access to a resource block may be via a shared fiber. The
<SharedInput> and <SharedOutput> elements are indicators for this <SharedInput> and <SharedOutput> elements are indicators for this
condition with respect to the block being described. condition with respect to the block being described.
5.3.2. Modulation Type List 5.3.2. Optical Interface Class List
Modulation type, also known as optical tributary signal class,
comes in two distinct flavors: (i) ITU-T standardized types; (ii)
vendor specific types. The permitted modulation type list can
include any mixture of standardized and vendor specific types.
<modulation-list>::=
[<STANDARD_MODULATION>|<VENDOR_MODULATION>]...
Where the STANDARD_MODULATION object just represents one of the
ITU-T standardized optical tributary signal class and the
VENDOR_MODULATION object identifies one vendor specific
modulation type.
5.3.3. FEC Type List
Some devices can handle more than one FEC type and hence a list
is needed.
<fec-list>::= [<FEC>]
Where the FEC object represents one of the ITU-T standardized
FECs defined in [G.709], [G.707], [G.975.1] or a vendor-specific
FEC.
5.3.4. Bit Rate Range List
Some devices can handle more than one particular bit rate range
and hence a list is needed.
<rate-range-list>::= [<rate-range>]...
<rate-range>::=<START_RATE><END_RATE> <OpticalInterfaceClassList> ::= <OPTICAL_INT_CLASS> ...
Where the START_RATE object represents the lower end of the range Where the term <OPTICAL_INT_CLASS> is defined by [xyz?].
and the END_RATE object represents the higher end of the range.
5.3.5. Acceptable Client Signal List 5.3.3. Acceptable Client Signal List
The list is simply: The list is simply:
<client-signal-list>::=[<GPID>]... <client-signal-list>::=[<GPID>]...
Where the Generalized Protocol Identifiers (GPID) object Where the Generalized Protocol Identifiers (GPID) object
represents one of the IETF standardized GPID values as defined in represents one of the IETF standardized GPID values as defined in
[RFC3471] and [RFC4328]. [RFC3471] and [RFC4328].
5.3.6. Processing Capability List 5.3.4. Processing Capability List
The ProcessingCapabilities were defined in Section 5.2 as follows: The ProcessingCapabilities were defined in Section 5.2 as follows:
<ProcessingCapabilities> ::= [<NumResources>] <ProcessingCapabilities> ::= [<NumResources>]
[<RegenerationCapabilities>] [<FaultPerfMon>] [<VendorSpecific>] [<RegenerationCapabilities>] [<FaultPerfMon>] [<VendorSpecific>]
The processing capability list sub-TLV is a list of processing The processing capability list sub-TLV is a list of processing
functions that the WSON network element (NE) can perform on the functions that the WSON network element (NE) can perform on the
signal including: signal including:
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