OSPF Enhancement for Signal and Network Element Compatibility for Wavelength Switched Optical Networks <draft-ietf-ccamp-wson-signal-compatibility-ospf-02.txt> Young Lee ylee@huawei.com Huawei Greg Bernstein gregb@grotto-networking.com Grotto Networking

Scope This document provides GMPLS OSPF routing enhancements to support signal compatibility constraints specific to WSON network elements. OSPF TE LSA node attribute to include Sub-TLVs: Signal Compatibility Under Resource Block Information: modulation, FEC, Client Signal, Processing Capability OEO/Regen/WC elements under Resource Block Accessibility Resource Block Wavelength Constraints Resource Block Pool State This compatibility constraint model is applicable to common optical or hybrid electro optical systems such as OEO switches, regenerators, and wavelength converters since such systems can be limited to processing only certain types of WSON signals.

Adopted in Hiroshima IETF as a CCAMP WG draft. Updates Adopted in Hiroshima IETF as a CCAMP WG draft. From 00 to 01: The details of the encodings for compatibility moved from this document to: draft-ietf-ccamp-rwa-wson-encode-06.txt From 01 to 02: All the changes are done through the aforementioned encode draft. Completely aligned with encode draft. Resource Block Information Sub-TLV (section 5.1) revised the encoding for the “shared access” indicators to only use one bit each for ingress and egress.

The OSPF TE LSA node attribute sub-TLV Resource Block Information Resource Block Accessibility Resource Block Wavelength Constraints Resource Block Pool State

Resource Block Information sub-TLV There are seven nested sub-TLVs defined in the Resource Block Information sub-TLV. Input Modulation Format List Input FEC Type List Input Bit Range List TBA variable Input Client Signal List Processing Capability List Output Modulation Format List Output FEC Type List

Summary & Next Steps We are open to adopt new elements from Pierre’s individual draft.