draft-ietf-ccamp-gmpls-g-694-lambda-labels-06.txt   draft-ietf-ccamp-gmpls-g-694-lambda-labels-07.txt 
Network Working Group Tomohiro Otani Network Working Group Tomohiro Otani(Ed.)
Internet Draft Takehiro Tsuritani Internet Draft KDDI
Updates: RFC3471 KDDI Updates: RFC3471 Dan Li(Ed.)
Category: Standards Track Dan Li Category: Standards Track Huawei
Huawei
Expires: September 2010 March 19, 2010 Expires: October 2010 April 8, 2010
Generalized Labels for Lambda-Switching Capable Label Switching Generalized Labels for Lambda-Switching Capable Label Switching
Routers Routers
draft-ietf-ccamp-gmpls-g-694-lambda-labels-06.txt draft-ietf-ccamp-gmpls-g-694-lambda-labels-07.txt
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Abstract Abstract
Technology in the optical domain is constantly evolving and as a Technology in the optical domain is constantly evolving and as a
consequence new equipment providing lambda switching capability has consequence new equipment providing lambda switching capability has
been developed and is currently being deployed. However, [RFC3471] been developed and is currently being deployed. However, [RFC3471]
has defined that a wavelength label (section 3.2.1.1) "only has has defined that a wavelength label (section 3.2.1.1) "only has
significance between two neighbors" and global wavelength continuity significance between two neighbors" and global wavelength continuity
is not considered. In order to achieve interoperability in a network is not considered. In order to achieve interoperability in a network
composed of next generation lambda switch-capable equipment, this composed of next generation lambda switch-capable equipment, this
skipping to change at page 2, line 29 skipping to change at page 2, line 31
format when Lambda Switching is requested in an all optical network. format when Lambda Switching is requested in an all optical network.
Conventions used in this document Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119]. document are to be interpreted as described in [RFC2119].
Table of Contents Table of Contents
1. Introduction..................................................2 1. Introduction.................................................3
2. Assumed network model and related problem statement...........3 2. Assumed network model and related problem statement..........3
3. Label Related Formats.........................................6 3. Label Related Formats........................................6
3.1. Wavelength Labels........................................6 3.1. Wavelength Labels.......................................6
3.2. DWDM Wavelength Label....................................7 3.2. DWDM Wavelength Label...................................7
3.3. CWDM Wavelength Label....................................8 3.3. CWDM Wavelength Label...................................8
4. Security Considerations......................................10 4. Security Considerations.....................................10
5. IANA Considerations..........................................10 5. IANA Considerations.........................................10
6. Acknowledgments..............................................10 6. Acknowledgments.............................................10
7. References...................................................10 7. References..................................................10
7.1. Normative References....................................10 7.1. Normative References...................................10
7.2. Informative References..................................11 7.2. Informative References.................................11
8. Author's Address.............................................12 8. Author's Address............................................12
9. Appendix A. DWDM Example.....................................13 9. Appendix A. DWDM Example....................................13
10. Appendix B. CWDM Example....................................13 10. Appendix B. CWDM Example...................................13
1. Introduction 1. Introduction
As described in [RFC3945], Generalized MPLS (GMPLS) extends MPLS As described in [RFC3945], Generalized MPLS (GMPLS) extends MPLS
from supporting only packet (Packet Switching Capable - PSC) from supporting only packet (Packet Switching Capable - PSC)
interfaces and switching to also include support for four new interfaces and switching to also include support for four new
classes of interfaces and switching: classes of interfaces and switching:
o Layer-2 Switch Capable (L2SC) o Layer-2 Switch Capable (L2SC)
skipping to change at page 12, line 9 skipping to change at page 12, line 9
[G.694.1] ITU-T Recommendation G.694.1, "Spectral grids for WDM [G.694.1] ITU-T Recommendation G.694.1, "Spectral grids for WDM
applications: DWDM frequency grid", June 2002. applications: DWDM frequency grid", June 2002.
[G.694.2] ITU-T Recommendation G.694.2, "Spectral grids for WDM [G.694.2] ITU-T Recommendation G.694.2, "Spectral grids for WDM
applications: CWDM wavelength grid", December 2003. applications: CWDM wavelength grid", December 2003.
8. Author's Address 8. Author's Address
Tomohiro Otani Tomohiro Otani
KDDI Corporation KDDI Corporation
2-3-2 Nishishinjuku Shinjuku-ku Tokyo, 163-8003, Japan 2-3-2 Nishishinjuku Shinjuku-ku
Tokyo, 163-8003, Japan
Phone: +81-3-3347-6006 Phone: +81-3-3347-6006
Email: tm-otani@kddi.com Email: tm-otani@kddi.com
Takehiro Tsuritani
KDDI R&D Laboratories Inc.
2-1-15 Ohara Fujimino-shi Saitama, 356-8502, Japan
Phone: +81-49-278-7806
Email: tsuri@kddilabs.jp
Dan Li
Huawei Technologies
F3-5-B R&D Center, Huawei Base,
Shenzhen 518129 China
Phone: +86 755-289-70230
Email: danli@huawei.com
Richard Rabbat Richard Rabbat
Google, Inc. Google, Inc.
1600 Amphitheatre Pkwy 1600 Amphitheatre Pkwy
Mountain View, CA 94043 Mountain View, CA 94043
Email: rabbat@alum.mit.edu Email: rabbat@alum.mit.edu
Sidney Shiba Sidney Shiba
Email: sidney.shiba@yahoo.com Email: sidney.shiba@yahoo.com
Hongxiang Guo Hongxiang Guo
Email: hongxiang.guo@gmail.com Email: hongxiang.guo@gmail.com
Keiji Miyazaki Keiji Miyazaki
Fujitsu Laboratories Ltd Fujitsu Laboratories Ltd
4-1-1 Kotanaka Nakahara-ku, Kawasaki Kanagawa, 211-8588, Japan 4-1-1 Kotanaka Nakahara-ku,
Kawasaki Kanagawa, 211-8588, Japan
Phone: +81-44-754-2765 Phone: +81-44-754-2765
Email: miyazaki.keiji@jp.fujitsu.com Email: miyazaki.keiji@jp.fujitsu.com
Diego Caviglia Diego Caviglia
Ericsson Ericsson
16153 Genova Cornigliano, ITALY 16153 Genova Cornigliano, ITALY
Phone: +390106003736 Phone: +390106003736
Email: diego.caviglia@ericsson.com Email: diego.caviglia@ericsson.com
Dan Li
Huawei Technologies
F3-5-B R&D Center, Huawei Base,
Shenzhen 518129 China
Phone: +86 755-289-70230
Email: danli@huawei.com
Takehiro Tsuritani
KDDI R&D Laboratories Inc.
2-1-15 Ohara Fujimino-shi
Saitama, 356-8502, Japan
Phone: +81-49-278-7806
Email: tsuri@kddilabs.jp
9. Appendix A. DWDM Example 9. Appendix A. DWDM Example
Considering the network displayed in figure 1 it is possible to show Considering the network displayed in figure 1 it is possible to show
an example of LSP set up using the lambda labels. an example of LSP set up using the lambda labels.
Node 1 receives the request for establishing an LSP from itself to Node 1 receives the request for establishing an LSP from itself to
Node 9. The ITU-T grid to be used is the DWDM one, the channel Node 9. The ITU-T grid to be used is the DWDM one, the channel
spacing is 50Ghz and the wavelength to be used is 193,35 THz. spacing is 50Ghz and the wavelength to be used is 193,35 THz.
Node 1 signals the LSP via a Path message including a Wavelength Node 1 signals the LSP via a Path message including a Wavelength
Label structured as defined in section 4.2: Label structured as defined in section 4.2:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Grid | C.S |R| Identifier | n | |Grid | C.S | Identifier | n |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Where: Where:
Grid = 1 : ITU-T DWDM grid Grid = 1 : ITU-T DWDM grid
C.S. = 2 : 50 GHz channel spacing C.S. = 2 : 50 GHz channel spacing
n = 5 : n = 5 :
skipping to change at page 14, line 8 skipping to change at page 14, line 8
This time the signaling of an LSP from Node 4 to Node 7 is considered. This time the signaling of an LSP from Node 4 to Node 7 is considered.
Such LSP exploits the CWDM ITU-T grid with a 20nm channel spacing and Such LSP exploits the CWDM ITU-T grid with a 20nm channel spacing and
is to established using wavelength equal to 1331 nm. is to established using wavelength equal to 1331 nm.
Node 4 signals the LSP via a Path message including a Wavelength Node 4 signals the LSP via a Path message including a Wavelength
Label structured as defined in section 4.3: Label structured as defined in section 4.3:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Grid | C.S |R| Identifier | n | |Grid | C.S | Identifier | n |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Where: Where:
Grid = 2 : ITU-T CWDM grid Grid = 2 : ITU-T CWDM grid
C.S. = 1 : 20 nm channel spacing C.S. = 1 : 20 nm channel spacing
n = -7 : n = -7 :
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