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Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks

Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks. draft-ietf-ccamp-rwa-wson-encode-04.txt. Greg Bernstein gregb@grotto-networking.com Grotto Networking Young Lee ylee@huawei.com Huawei. Authors/Contributors.

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Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks

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  1. Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks draft-ietf-ccamp-rwa-wson-encode-04.txt Greg Bernstein gregb@grotto-networking.com Grotto Networking Young Lee ylee@huawei.com Huawei 77th IETF – Anaheim, California, March 2010

  2. Authors/Contributors • Greg Bernstein (Grotto Networking) • Diego Caviglia (Ericsson) • Ander Gavler (Acreo AB) • Jianrui (Rebecca) Han (Huawei) • Young Lee (Huawei) • Dan Li (Huawei) • Wataru Imajuku (NTT) • Jonas Martensson (Acreo AB) • Itaru Nishioka (NEC Corp.) 77th IETF – Anaheim, California, March 2010

  3. Encoding RWA Info in WSON • Scopeis the WSON specific aspects of the RWA WSON Framework and Info Model drafts. (scope reduction) • This document provides efficient, protocol-agnostic encodings for the WSON specific information elements. It is intended that protocol-specific documents will reference this memo to describe how information is carried for specific uses. 77th IETF – Anaheim, California, March 2010

  4. Changes from Encoding 03.txt • Removed encodings for general concepts to [Gen-Encode]. • Generalized & Simplified Resource Pool • Use “Resource block” terminology to refer to either wavelength converters, regenerators, or other processing • “Resource blocks” can contain multiple identical resources  better for encoding OEO switches, regular regenerators. • Added in WSON signal compatibility and processing capability information encodings from ietf-ccamp-signal-compatibility-ospf-00. • Resource block info sub-TLV • Related sub-sub-TLVs: Input Modulation, Input FEC, Input Bit Rate, Input client signal types, Processing Capabilities, Output modulation types, Output FEC types. 77th IETF – Anaheim, California, March 2010

  5. Resource Pool Information Model • <Node_Info> ::= <Node_ID>[Other GMPLS sub-TLVs] [<ResourcePool>][<RBPoolState>] where <ResourcePool> ::= <ResourceBlockInfo>... [<ResourceBlockAccessibility>...] [<ResourceWaveConstraints>...] 77th IETF – Anaheim, California, March 2010

  6. Resource Pool Encoding General Model (c) “Half Clear” (a) Shared by node (b) Shared by port (d) “Shared by Wavelength”, W=5, M=3, p=2 77th IETF – Anaheim, California, March 2010

  7. Resource Pool Encoding (cont) (e) Shared with Local (h) OEO switch with DWDM optics (f) Shared with Local (i) Regenerators on a DWDM line (g) Shared with Local 77th IETF – Anaheim, California, March 2010

  8. Compatibility Encoding • Applied to the “Resource Block sub-TLV” • Resource block info sub-TLV • Addresses the compatibility and capabilities of the resources in a block. • sub-sub-TLVs: Extracted from OSPF WSON compatibility draft. 77th IETF – Anaheim, California, March 2010

  9. Next Steps • Polish, refine, prepare for last call 77th IETF – Anaheim, California, March 2010

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