1. Page - 1 74 th IETF – San Francisco, CA, March 2009 Framework for GMPLS and PCE Control of Wavelength Switched Optical Networks (WSON) Greg Bernsteingregb@grotto-networking.com Grotto Networkinggregb@grotto-networking.com Young Leeylee@huawei.comylee@huawei.com Huawei Wataru Imajukuimajuku.wataru@lab.ntt.co.jpimajuku.wataru@lab.ntt.co.jp NTT draft-ietf-ccamp-rwa-wson-framework-02.txt

2. Page - 2 74 th IETF – San Francisco, CA, March 2009 Authors/Contributors Snigdho Bardalai (Fujitsu) Greg Bernstein (Grotto Networking) Diego Caviglia (Ericsson) Wataru Imajuku (NTT) Daniel King (Old Dog Consulting) Young Lee (Huawei) Dan Li (Huawei) Itaru Nishioka (NEC Corp.) Lyndon Ong (Ciena) Pierre Peloso (Alcatel-Lucent) Jonathan Sadler (Tellabs) Dirk Schroetter (Cisco) – new contribution/contributor

3. Page - 3 74 th IETF – San Francisco, CA, March 2009 WSON RWA Framework Describes wavelength switched optical networks (WSON), subsystems, models and associated processes. Emphasizing those aspects that are different from other technologies that utilize a GMPLS control plane. Provide computation architecture options and a high-level information necessary for path computation (RWA). –Info draft provides details of information model: Routing and Wavelength Assignment Information Model for Wavelength Switched Optical Networks (draft-ietf-ccamp-rwa-info-01.txt) Summarize implications to GMPLS routing and signaling, and to PCE protocols. Does not address optical impairments

4. Page - 4 74 th IETF – San Francisco, CA, March 2009 Changes Rename file –draft-ietf-ccamp-rwa-wson-framework-xx to differentiate from impairment work. Added new first level section on modeling examples and control plane use cases. Added new third level section on wavelength converter pool modeling

5. Page - 5 74 th IETF – San Francisco, CA, March 2009 Modeling Examples and Use Cases –Example network includes: ROADMs, FOADMs, higher degree ROADMs, –Uses cases: node modeling, RWA, optimization, and reroute +--+ +--+ +--+ +--------+ +-L3-+N2+-L5-+ +--------L12--+N6+--L15--+ N8 +-- | +--+ |N4+-L8---+ +--+ ++--+---++ | | +-L9--+| | | | +--+ +-+-+ ++-+ || | L17 L18 | ++-L1--+ | | ++++ +----L16---+ | | |R1| | N1| L7 |R2| | | | | ++-L2--+ | | ++-+ | ++---++ +--+ +-+-+ | | | + R3 | | +--+ ++-+ | | +-----+ +-L4-+N3+-L6-+N5+-L10-+ ++----+ +--+ | +--------L11--+ N7 +---- +--+ ++---++ | | L13 L14 | | ++-+ | |O1+-+ +--+ Thanks Dirk!

6. Page - 6 74 th IETF – San Francisco, CA, March 2009 Wavelength Converter Pool Model –Model and examples discussed at Minneapolis incorporated into text I1 +-------------+ +-------------+ E1 ----->| | +--------+ | |-----> I2 | +------+ WC #1 +-------+ | E2 ----->| | +--------+ | |-----> | Wavelength | | Wavelength | | Converter | +--------+ | Converter | | Pool +------+ WC #2 +-------+ Pool | | | +--------+ | | | Ingress | | Egress | | Connection |. | Connection | | Matrix |. | Matrix | | |. | | | | | | IN | | +--------+ | | EM ----->| +------+ WC #P +-------+ |-----> | | +--------+ | | +-------------+ ^ ^ +-------------+ | | Ingress wavelength Egress wavelength constraints for constraints for each converter each converter

7. Page - 7 74 th IETF – San Francisco, CA, March 2009 Next Steps Refine Usage Scenarios –Optimization could use some elaboration Continue Alignment with emerging drafts such as info model, encoding and signaling. Align with ITU-T terminology for optical signals –Recent Q6 meeting indicated that these are called Optical Tributary Signals (G.959.1). This terminology is also used in G.698.1 and G.698.2 Editorial corrections and enhancements