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Signaling Extensions for Wavelength Switched Networks

Signaling Extensions for Wavelength Switched Networks. draft-ietf-ccamp-wson-signaling-01.txt. Greg Bernstein Grotto Networking Young Lee Huawei Sugang Xu NICT Hiroaki Harai NICT Daniel King Old Dog Consulting Giovanni Martinelli Cisco. Updates 00->01.

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Signaling Extensions for Wavelength Switched Networks

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  1. Signaling Extensions for Wavelength Switched Networks draft-ietf-ccamp-wson-signaling-01.txt Greg Bernstein Grotto Networking Young Lee Huawei Sugang Xu NICT Hiroaki Harai NICT Daniel King Old Dog Consulting Giovanni Martinelli Cisco 80th IETF Prague (CZ)

  2. Updates 00->01 • Section 4: encoding aligned with info model • Section 5: Bi-directionality • Section 6: DWA, reconciled with bidirectionality 80th IETF Prague (CZ)

  3. WSON Attributes • WSON specific information within a dedicated LSP_ATTRIBUTE: • FEC encoding • Modulation Format • Regen processing configuration • No specific TSPEC update for WSON 80th IETF Prague (CZ)

  4. Bidirectionality • Need WG comments on possible options. • Output from RWA process: a path and a Label Set. • Possible Options in signaling function • Option1: current, bidir LSP (Label_Set + Upstream_Label) • Option2: bidir LSP (Label_Set or Label_Set + some extension to Upstream_Label) • Option3: two unidirectional LSPs (associated?) 80th IETF Prague (CZ)

  5. Opt 1 and 2: Bidirectional LSP • Option 1 Path(LS+UL) Several Path Attempt required PathErr (AcceptableLabelSet) Egress Egress Interm Interm Ingress Ingress Path(LS’+UL’) Resv • Option 2 ONE Path Attempt required Path(LS, or LS+UL set) Resv 80th IETF Prague (CZ)

  6. Option 3 • Two unidirectional LSP. • Worth considering association (e.g. draft-zhang-mpls-tp-rsvpte-ext-associated-lsp-03). • Pros: • Simple independent signaling. • Transport environment may need independent oam. • Each LSP for map a physical resource: a wavelenght • Cons: • Bigger State to maintains 80th IETF Prague (CZ)

  7. Next Steps • Updates according to WSON info model and encoding draft • Bi-directionality decision 80th IETF Prague (CZ)

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