Universal Connectivity & Interoperability in the Open Ecosystem
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The document discusses the challenges of achieving interoperability in an open networking ecosystem, highlighting various examples of incompatibility between open network operating systems (NOS) and whitebox switches. It outlines four key problems impacting interoperability—access to products, new interop variables, a larger interop matrix, and integration resource gaps—and offers solutions such as testing programs and the launch of an Open Solutions Validation Service (OSVS). Ultimately, the document emphasizes the importance of collaboration and thorough testing to enhance customer satisfaction and drive adoption of open networking solutions.
Universal Connectivity & Interoperability in the Open Ecosystem
- 2. Universal Connectivity and Interoperability in the Open Ecosystem David Woolf / Senior Engineer / UNH-IOL
- 8. Example 1: Found @ UNH-IOL February 2015: Release version of NOS ‘A’ + Whitebox Switch ‘B’ and Optic ‘C’, 10G port would not activate. Culprit: improper phy tuning for board layout. 8 Open ≠ Interoperable: Examples This interop issue led to startup of OOM (Open Optical Monitoring) subgroup within OCP Networking Project
- 12. Example 4: “QSFP+ or later” vs “QSFP28 or Later” • A properly built QSFP28 cable could be backward compatible to QSFP+ applications. This is desirable, supports universal connectivity. • Identifying as ‘0Dh - QSFP+ or later’, is allowed (and even recommended) by SFF-8024, rather than simply ‘11h - QSFP28or later’, because it support backwards compatibility. • Some NOS rejecting these cables when plugged into 100G ports, because they identified as 0Dh instead of 11h. • 802.3-by spec identifies using QSFP28-QSFP28 DAC in a 4 lane 25G config, with different codes to identify FEC support and expected length. 12 Open ≠ Interoperable: Examples
- 15. 15 Open ≠ Interoperable, why? 1. Access to Products 2. New Types of Interop Variables 4. Integration Resources Gap 3. Exponentially Larger Interop Matrix
- 17. Problem: Variables are now both intra- device and inter-device Solution: • test box-to-box and within box • look at interaction of Apps, NOS, HW 17 2. New Types of Interop Variables
- 18. 18 2. New Types of Interop Variables Solution: • Prove Layer 1 Interop • Check Optics Module/Cable interop and connectivity • Open Networking Integrators List https://www.iol.unh.edu/registry/opennetworking
- 19. 19 2. New Types of Interop Variables Solution: • Solid Foundation on testing Layer 1, move to Layer 2 • UNH-IOL is working with Agema to identify critical reference use cases for Layer 2 and beyond –Datacenter –Enterprise –Service provider (CORD)
- 20. Solution: • Launching ONIE Tested Program now. • Demonstrate compliance to ONIE Contract • Independently Verified • ONIEtested.org 20 2. New Types of Interop Variables
- 21. Problem: In a truly open eco system, the interop matrix is massive: Module * switch * NOS * Server * Server BIOS * NIC * Server OS * NIC Driver * NIC FW Two of each is 29 = 512 combos! 21 3. Exponentially Larger Interop Matrix
- 22. Solution: Do the testing, but cast a wide net 22 3. Exponentially Larger Interop Matrix
- 23. Problem: • 📞 If it doesn’t ‘just work’ Who do you call?" • ⚒ Significant effort needed to validate each component in an Open HW solution. • 🆘 Many Enterprises don’t have equipment or resources for this 23 4. Integration Resources Gap
- 24. Solution: Now Launching Open Solutions Validation Service (OSVS) • Engage directly with enterprise datacenter users • Leverage existing expertise in component validation • Already working with Hyperscalers as well as Financials. 24 4. Integration Resources Gap OSVS
- 25. Solution: Integrators Lists • Provide buyers confidence that configs have been independently tested • Now over 100 tested configs on the Open Networking Integrators List 25 4. Integration Resources Gap
- 26. 2015 • October 2015 Fidelity OCP EW Boston, MA • Launch Open Networking Integrators List10/40G Ethernet 2016 • August 2016 UNH-IOL OCP EW Durham, NH • Add LR, LR-Lite Optics to Open Networking Integrators List • Add 100G to Open Networking Integrators List at NH OCP EW 2017 • March 2017 OCP US Summit Santa Clara, CA • Launch ONIETested.org • 100+ Configs on Open Networking Integrators List 💯 • Launch UNH-IOL OSVS 26 OSVS
- 27. 27 4 problems, 4 solutions • Resource Gap • Big Test Matrix • New variables • Access IOL Sandbox New Tests Int. List Validation Services Get started, wide net OSVS