OIF: Fostering Interoperable Optical Networking Technologies

1. Tom Afferton Member of OIF Board of Directors Division Manager – AT&T Labs Afferton@att.com OIF Website: www.oiforum.com

2. What is the OIF? • Launched in April of 1998 with an objective to foster development of low-cost and scaleable internet using optical technologies • The only industry group bringing together professionals from the data and optical communities • Open forum: 250+ member companies • international • carriers • component and systems vendors • testing and software companies • Mission: To foster the development and deployment of interoperable products and services for data switching and routing using optical networking technologies

3. OIF Focus • Low-cost Scaleable Optical Internetworking • IP-Over-Switched Optical Network Architecture • Physical layer • Low-cost optical interfaces between networking elements • Standard device level electrical interfaces for low-cost systems • Control layer interoperability between data and optical layers • Dynamic configuration using IP signaling and control mechanisms • Accommodate legacy network under the new physical and control layer mechanisms

4. OIF StructureTechnical Committee: 6 Working Groups • Carrier • Requirements and applications • Architecture • Services, network requirements and architectures • Signaling • Protocols for automatic management of optical connections • OAM&P (Operations, Administration, Maintenance and Provisioning) • Network management • Physical and Link Layer • Equipment and subsystem module interfaces • Interoperability • Interoperability testing

5. Output from OIF • Implementation agreements, based upon: • Carrier group’s requirements • Existing standards and specification when available • New solutions when necessary • Interoperability testing procedures • Ensures compliance to implementation agreements and ultimately interoperable products and networks • Input into other standards bodies • Formal liasons in place with numerous other organizations (e.g. ITU, IETF. Complete list in back-up slides)

6. OIF Process for Generating Implementation Agreements • Framework provided by Working Group structure • Working groups establish consensus-driven projects to focus contributions • Progress driven by member contributions • Posted on OIF website • Basis for activities at quarterly technical meetings • Formal voting process for reaching Implementation Agreements • Two step process • Straw ballot – passes with simple majority • Principal ballot – passes with 2/3rds majority • Process enables open debate, incorporation of comments • Formal votes at each step • One vote per member company

7. Rest of the System Link Layer (Packet and Cell based Protocols) SPI PHY Layer SONET/SDH Framer SFI SERDES E/O Transceiver VSR Transmission Media OIF Activities – Physical Layer Business Need • Lower equipment costs through interface agreements that reduce customization Key Projects • Internal system interfaces • System/Physical Interface (SPI) • SPI-3, SPI-4 complete for 10G • SPI-5 in progress for 40G • Serializer/Deserializer-Framer Interface (SFI) • SFI-4 complete for 10G • SFI-5 in progress for 40G • Low cost premises equipment interfaces • Very Short Reach (VSR) • VSR-1, VSR-2, VSR-3, VSR-4 complete for 10 Gb/s • VSR-5 in progress for 40 Gb/s • Footprint specification for tunable lasers in progress

8. Call Accept Call Accept Call Request Connection Request Connection Indication OIF Activities – Control Layer Switched Optical Networks • A switched optical network is an optical network in which connections can be created using switching control technology. • The OIF is among the organizations working on the interfaces to enable controllers to work together to perform this function

9. OpticalNetwork B OpticalNetwork A OIF Activities – Control Layer Business Need • Lower operations costs through automation of routing optical circuits Key Projects • User-to-Network Interface – enables client equipment to request a service across optical networks • UNI 1.0 complete for SONET circuits • 25 vendor interop. Demonstratation at Supercomm in June, 2001 • Built upon protocols from IETF • Also completed Call Detail Records to support billing with UNI 1.0 • UNI 2.0 in progress to add other features • Network-to-Network Interface – enables optical networks to interact to deliver an end-to-end service • NNI 1.0 in progress • Targeting 1H03 for interoperability demonstration Client UNI NNI UNI Client

10. Why do service providers care about optical control plane interfaces? • Intelligent control plane, in general, lowers operating costs • Automatic discovery of elements, capacity and connections • Automatic routing and recovery of circuits • Improved survivability against complex failures • “Standardized” control plane interfaces enable • Wider adoption of control plane capabilities • Multi-vendor/carrier interoperability • New dynamic optical services with customer control • “Plug and play” introduction of new vendors/technologies • In advance of control plane deployment, service providers will continue to rely on centralized management systems

11. OIF control plane work vs. other organizations • Internet Engineering Task Force (IETF) • Community of individuals • Generating “tool box” of protocols • International Telecommunications Union • Formal organization for establishing global standards • In progress of developing comprehensive standards for “Automatic Switched Optical Network” • Some overlap among OIF, IETF, ITU • “Healthy” competition is evolving to cooperation Protocols Req’ts Req’ts Formals Standards Implementation Agreements

12. Summary • OIF brings together professionals from the data and optical worlds • OIF is addressing issues important to carriers and their customers • Control plane work is progressing well in OIF in collaboration with other organizations like the IETF and ITU

13. Thank You

14. Geographic OIF Membership Breakdown Market Segment (data as of 12/01)

15. Implementation Agreements • SPI-3: System Packet Interface Level 3 for STS-48/STM-16 • SPI-4 phase 1: System Physical Interface Level 4 for STS-192/STM-64 • SPI-4 phase 2: System Packet Interface Level 4 for STS-192/STM-64 • SFI-4: Serdes/Framer Electical Interface: Common electrical interface between framers and serializer/deserializer parts for STS-192/STM-64 interfaces. • SFI-5: Serdes/Framer Electical Interface: 40Gb/s interface for physical devices • SPI-5: OC-768 System Packet Interface • Very Short Reach (VSR) OC-192 Interface based on 12 fiber Parallel Optics • Serial OC192 1310 nm Very Short Reach (VSR) Interfaces • Very Short Reach (VSR) OC-192 Interface based on 4 fiber Parallel Optics • Serial OC192 850 nm Very Short Reach (VSR) Interfaces • User Network Interface (UNI) 1.0 • CDR: Call Detail Records for UNI 1.0 billing

16. OIF and other Standards Bodies • Established Liaisons With: • American National Standards Institute - ANSI T1 • International Telecommunications Union - ITU-T • Internet Engineering Task Force - IETF • ATM Forum • IEEE 802.3ae 10 Gb Ethernet • Network Processing Forum - NPF • Metro Ethernet Forum - MEF • Tele Management Forum - TMF

17. OIF and other Standards Bodies ITU-T ASON Umbrella Distributed Call & Connection Management Automatically Switched Transport Network Reqts. (G.7713/Y.1704) ( (G.807/Y.1301) Automatically Switched Optical Network Architecture (G.8080/Y.1304) Architecture & Requirements for Routing Generalized Automatic Discovery Techniques Discovery Techniques (G.7714/Y.1705) (G.7715) ATM Forum Data & Signaling OIF Date Communications Network Arch. (G.7712) Protocol for Automatic Discovery in SDH & OTN Networks Distributed Connection Mgmt. Protocols (G.7712/Y.1703) PNNI signaling and (G.7714.1) (G.7713.1, G.7713.2, G.7713.3) UNI 1.0, 2.0 routing extensions NNI 1.0 IETF GMPLS Umbrella • Signaling Functional Description • RSVP-TE Extensions • CR-LDP Extensions • SONET-SDH Extensions • G.709 Extensions • Routing • OSPF-TE/IS-IS Extensions • Link Management • (LMP, LMP-WDM)