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
March 2011
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
March 2011
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
March 2011
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?)
March 2011
80th IETF Prague (CZ)

5. Opt 1 and 2: Bidirectional LSP
Option 1
Egress
Interm
Ingress
Path(LS+UL)
Several Path
Attempt
required
PathErr (AcceptableLabelSet)
Path(LS’+UL’)
Resv
Option 2
Egress
Interm
Ingress
ONE Path
Attempt
required
Path(LS, or LS+UL set)
Resv
March 2011
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
March 2011
80th IETF Prague (CZ)

7. Next Steps Updates according to WSON info model and encoding draft
Bi-directionality decision
March 2011
80th IETF Prague (CZ)