1. 55th IETF GSMP WG, Atlanta 1 General Switch Management Protocol (GSMP) v3 for Optical Support 55 th IETF GSMP WG, Atlanta Jun Kyun Choi (jkchoi@icu.ac.kr),jkchoi@icu.ac.kr Min Ho Kang (mhkang@icu.ac.kr),mhkang@icu.ac.kr Jung Yul Choi (passjay@icu.ac.kr),passjay@icu.ac.kr Gyu Myoung Lee (gmlee@icu.ac.kr),gmlee@icu.ac.kr Joo Uk Um(jooukum@kt.co.kr )jooukum@kt.co.kr

2. 55th IETF GSMP WG, Atlanta 2 Works for Optical Support  GSMPv3 for optical support Resources/labels should be dealt with optical switching Additional functions/messages should be added for Protection and Restoration capabilities What other capabilities are added ?

3. 55th IETF GSMP WG, Atlanta 3 Common Definitions and Procedures (1)  Labels for optical switching as well as optical transfer A single fiber in a bundle A single waveband within a fiber A single wavelength within a waveband (or a fiber) An optical burst within a wavelength Label Formats for optical switching support ?

4. 55th IETF GSMP WG, Atlanta 4 Common Definitions and Procedures (2)  Protection and Restoration using GSMP Dedicated protection Create a backup link by using Add Branch Message Revertible mode;  A backup link  (by Move Input Branch Message)  a restored original link Non-revertible mode  A restored original link; deleted (by Delete Branch Message) or used a backup link (Add Branch Message) Shared protection Shared backup links are reserved by using Reservation Management Messages which contain Reservation ID for restoration

5. 55th IETF GSMP WG, Atlanta 5 Connection Management Messages  Move Output Branch Message Should be able to change the failed output port to the reserved port in case of shared protection Old output field; the failed link port, new output field; backup link port  Move Input Branch Message Should be able to move back to the original connection from a backup connection in case of revertible mode in restoration Old input field; the failed link port, new input field; the original link port (note) Other connection messages and formats will be included based on GSMPv3 and Requirement Spec.

6. 55th IETF GSMP WG, Atlanta 6 Reservation Management Messages  Reserve optical resources (connection) Optical burst, wavelength, waveband, fiber for establishing a connection  Should be able to support shared protection Reservation ID; the reserved backup connection The input/output label must be assigned Must be simplified to use the reserved connection upon a fault  new message format ? (note) Other management messages and formats will be added based on GSMPv3 and Requirement Spec.

7. 55th IETF GSMP WG, Atlanta 7 State and Statistics Messages  Specify optical signal characteristics for P&R actions Signal degradation Loss of signal  How to operate Optical Protection & Restoration ? Automatically done and notify later or Notify first and done by GSMP ? How to indicate urgent events for fast switching control (note) Other messages will be added based on GSMPv3 and Requirement Spec.

8. 55th IETF GSMP WG, Atlanta 8 Configuration Messages  Switch Configuration Message Switching layers (elements) Switching per optical burst, wavelength, waveband, or fiber/fiber bundle  Port Configuration Message Newly added values Available or protected wavelengths per an interface Bit rate per wavelength or port Type of fiber  Service Configuration Message Service definition; service model, QoS parameter, traffic control elements TBD  How to apply P&R logically and physically (i.e., SRLG, SRG) ?

9. 55th IETF GSMP WG, Atlanta 9 Event Messages and Failure Response Code  Event Messages for P&R are needed ?  Failure Response Code No available wavelength at a port No available backup link for protection Waveband connect setup fails Reservation for optical burst fails Fail codes for Protection and Restoration are added or not ? (note) Other messages will be added based on GSMPv3 and Requirement Spec.

10. 55th IETF GSMP WG, Atlanta 10 Next Steps  Collaborations with ccamp WG may be needed for detail specification Label encoding rule for optical switching resources (optical burst, wavelength, waveband, fiber, and fiber bundle, etc.) In a case, label encoding of optical switching resources may be different from that of optical transmission resources ? Optical Service Definition and Procedures including P&R Other switching management capabilities of optical network are needed in future ?  Develop GSMP spec. based on optical switching capabilities according to existing GMPLS knowledge and principle ?