draft-ietf-ccamp-wson-iv-info-09.txt   draft-ietf-ccamp-wson-iv-info-10.txt 
CCAMP G. Martinelli, Ed. CCAMP G. Martinelli, Ed.
Internet-Draft Cisco Internet-Draft Cisco
Intended status: Informational H. Zheng, Ed. Intended status: Informational H. Zheng, Ed.
Expires: September 5, 2019 Huawei Technologies Expires: March 12, 2020 Huawei Technologies
G. Galimberti G. Galimberti
Cisco Cisco
Y. Lee Y. Lee
SKKU
F. Zhang F. Zhang
Huawei Technologies Huawei Technologies
March 4, 2019 September 9, 2019
Information Model for Wavelength Switched Optical Networks (WSONs) with Information Model for Wavelength Switched Optical Networks (WSONs) with
Impairments Validation Impairments Validation
draft-ietf-ccamp-wson-iv-info-09 draft-ietf-ccamp-wson-iv-info-10
Abstract Abstract
This document defines an information model to support Impairment- This document defines an information model to support Impairment-
Aware (IA) Routing and Wavelength Assignment (RWA) functionality. Aware (IA) Routing and Wavelength Assignment (RWA) functionality.
This information model extends the information model for impairment- This information model extends the information model for impairment-
free RWA process in WSON to facilitate computation of paths where free RWA process in WSON to facilitate computation of paths where
optical impairment constraints need to considered. optical impairment constraints need to considered.
Status of This Memo Status of This Memo
skipping to change at page 1, line 41 skipping to change at page 1, line 42
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
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 September 5, 2019. This Internet-Draft will expire on March 12, 2020.
Copyright Notice Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the Copyright (c) 2019 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
(https://trustee.ietf.org/license-info) in effect on the date of (https://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
skipping to change at page 13, line 12 skipping to change at page 13, line 12
vs. Routing vs. PCE), the IV-Candidates imply a path property stating vs. Routing vs. PCE), the IV-Candidates imply a path property stating
that a path is optically feasible. that a path is optically feasible.
The concept of Optical Impairment Vector (OIV) might be used or The concept of Optical Impairment Vector (OIV) might be used or
extended to report optical impairment information at path level extended to report optical impairment information at path level
however this is case is letf for future studies. however this is case is letf for future studies.
6. Encoding Considerations 6. Encoding Considerations
Details about encoding will be defined in a separate document Details about encoding will be defined in a separate document
[I-D.martinelli-ccamp-wson-iv-encode] however worth remembering that, [I-D.ietf-ccamp-wson-iv-encode] however worth remembering that,
within [ITU.G697] Appending V, ITU already provides a guideline for within [ITU.G697] Appending V, ITU already provides a guideline for
encoding some optical parameters. encoding some optical parameters.
In particular [ITU.G697] indicates that each parameter shall be In particular [ITU.G697] indicates that each parameter shall be
represented by a 32 bit floating point number. represented by a 32 bit floating point number.
Values for optical parameters are provided by optical node and it Values for optical parameters are provided by optical node and it
could provide by direct measurement or from some internal computation could provide by direct measurement or from some internal computation
starting from indirect measurement. In such cases, it could be starting from indirect measurement. In such cases, it could be
useful to understand the variance associated with the value of the useful to understand the variance associated with the value of the
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Design and Engineering Considerations", Design and Engineering Considerations",
ITU-T Recommendation G. Supplement 39, September 2012. ITU-T Recommendation G. Supplement 39, September 2012.
[ITU.GSUP47] [ITU.GSUP47]
International Telecommunications Union, "General aspects International Telecommunications Union, "General aspects
of optical fibres and cables", ITU-T Recommendation G. of optical fibres and cables", ITU-T Recommendation G.
Supplement 47, September 2012. Supplement 47, September 2012.
12.2. Informative References 12.2. Informative References
[I-D.martinelli-ccamp-wson-iv-encode] [I-D.ietf-ccamp-wson-iv-encode]
Martinelli, G., Zhang, X., Galimberti, G., Lee, Y., and F. Martinelli, G., Lee, Y., Galimberti, G., and F. Zhang,
Zhang, "Information Encoding for WSON with Impairments "Information Encoding for WSON with Impairments
Validation", draft-martinelli-ccamp-wson-iv-encode-09 Validation", draft-ietf-ccamp-wson-iv-encode-02 (work in
(work in progress), February 2018. progress), January 2019.
[LS78] International Telecommunications Union SG15/Q6, "LS/s on [LS78] International Telecommunications Union SG15/Q6, "LS/s on
CCAMP Liaison to ITU-T SG15 Q6 and Q12 on WSON", CCAMP Liaison to ITU-T SG15 Q6 and Q12 on WSON",
LS https://datatracker.ietf.org/liaison/1288/, October LS https://datatracker.ietf.org/liaison/1288/, October
2013. 2013.
[RFC6163] Lee, Y., Ed., Bernstein, G., Ed., and W. Imajuku, [RFC6163] Lee, Y., Ed., Bernstein, G., Ed., and W. Imajuku,
"Framework for GMPLS and Path Computation Element (PCE) "Framework for GMPLS and Path Computation Element (PCE)
Control of Wavelength Switched Optical Networks (WSONs)", Control of Wavelength Switched Optical Networks (WSONs)",
RFC 6163, DOI 10.17487/RFC6163, April 2011, RFC 6163, DOI 10.17487/RFC6163, April 2011,
skipping to change at page 18, line 30 skipping to change at page 18, line 30
Giovanni Martinelli (editor) Giovanni Martinelli (editor)
Cisco Cisco
via Santa Maria Molgora, 48/C via Santa Maria Molgora, 48/C
Vimercate, MB 20871 Vimercate, MB 20871
Italy Italy
Phone: +39 039 2092044 Phone: +39 039 2092044
Email: giomarti@cisco.com Email: giomarti@cisco.com
Haomian Zhang (editor) Haomian Zheng (editor)
Huawei Technologies Huawei Technologies
F3 R&D Center, Huawei Base H1-1-A043S, Huawei Industrial Base, Songshanhu
Bantian, Longgang District Dongguan, Guangdong 523808
Shenzen 518129 China
P.R. China
Phone: +86 755 28972465 Phone: +8613066975206
Email: zhenghaomian@huawei.com Email: zhenghaomian@huawei.com
Gabriele M. Galimberti Gabriele M. Galimberti
Cisco Cisco
Via Santa Maria Molgora, 48/C Via Santa Maria Molgora, 48/C
Vimercate, MB 20871 Vimercate, MB 20871
Italy Italy
Phone: +39 039 2091462 Phone: +39 039 2091462
Email: ggalimbe@cisco.com Email: ggalimbe@cisco.com
Young Lee Young Lee
Huawei Technologies SKKU
1700 Alma Drive, Suite 100 Sung Kyun Kwan University
Plano, TX 75075 Seoul
U.S.A Korea
Email: ylee@huawei.com Email: younglee.tx@gmail.com
Fatai Zhang Fatai Zhang
Huawei Technologies Huawei Technologies
F3-5-B R&D Center, Huawei Base H1-1-A042S, Huawei Industrial Base, Songshanhu
Bantian, Longgang District Dongguan, Guangdong 523808
Shenzen 518129 China
P.R. China
Email: zhang.fatai@huawei.com Email: zhangfatai@huawei.com
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