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Generalized Labels for G.694 Lambda-Switching Capable Routers draft-ietf-ccamp-gmpls-g-694-lambda-labels-03,04.txt CCAMP WG, IETF 74 rd San Francisco.

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Presentation on theme: "Generalized Labels for G.694 Lambda-Switching Capable Routers draft-ietf-ccamp-gmpls-g-694-lambda-labels-03,04.txt CCAMP WG, IETF 74 rd San Francisco."— Presentation transcript:

1 Generalized Labels for G.694 Lambda-Switching Capable Routers draft-ietf-ccamp-gmpls-g-694-lambda-labels-03,04.txt CCAMP WG, IETF 74 rd San Francisco

2 Authors Tomohiro Otani (KDDI Corporation ) Richard Rabbat (Google, Inc.) Sidney Shiba Hongxiang Guo Keiji Miyazaki (Fujitsu Laboratories Ltd) Diego Caviglia (Ericsson)

3 Statements Standard lambda labels format definition to achieve interoperability in wavelength switched all-optical networks. Label format based on ITU-T: G – DWDM G – CWDM Foreseen environments: Multi-vendor Multi-domain Definition of GMPLS signaling requirements considering wavelength continuity

4 Updates in -03 version (1/2) Section 4.2: Channel Spacing (C.S.) values modified in lambda label old (-02) new (-03) | C.S(GHz) | Value | | 100 | 1 | | 50 | 2 | | 25 | 3 | | 12.5 | 4 | |Future use| | | C.S(GHz) | Value | | 12.5 | 1 | | 25 | 2 | | 50 | 3 | | 100 | 4 | |Future use| | C.S. ascending order to descending order for future definition of narrower channel spacing (e.g. 6.25GHz)

5 Updates in -03 version (2/2) Section 4.1: CWDM centre value changed from 1470nm to 1471 according to G definition. old: Wavelength (nm) = 1470 nm +/- n * 20 nm new: Wavelength (nm) = 1471 nm +/- n * 20 nm Appendix: Two examples were added. DWDM example (Appendix A.) CWDM example (Appendix B.) Section 3: Some editorial fixes on Interconnecting details Figure (fig.2) and related explanation

6 Updates in -04 version (1/2) As a result of discussions with Q6/15 last Friday, some minor changes were made. Section 4.1, 4,2, 4.3: Frequency calculation value n was changed from an integer to twos- complement integer to specify negative, zero or positive. DWDM: Frequency (THz) = THz + n * channel spacing (THz) CWDM: Wavelength (nm) = 1471 nm + n * 20 nm

7 Updates in -04 version (2/2) Section 4.2, 4.3: Reserved Value 0 was added to Grid and C.S. values | Grid | Value | | Reserved | 0 | |ITU-T DWDM| 1 | |ITU-T CWDM| 2 | |Future use| | | C.S(GHz) | Value | | Reserved | 0 | | 100 | 1 | | 50 | 2 | | 25 | 3 | | 12.5 | 4 | |Future use| | C.S. value (DWDM)Grid value | C.S(nm) | Value | | Reserved | 0 | | 20 | 1 | |Future use| | C.S. value (CWDM)

8 Next step The authors believe the label format was finalized and propose to move to WG last call.


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