Build Reliable Cloud Networks with SONiC and ONE Wei Bai 白巍 Microsoft Research Asia OCP China Technology Day, Shenzhen, China 1 54 100K+ 130+ $15B+ REGIONS WORLDWIDE MILES OF FIBER AND SUBSEA CABLE EDGE SITES Investments Two Open Source Cornerstones for High Reliability Networking OS: SONiC Network Verification: ONE 3 Networking OS: SONiC 4 A Solution to Unblock Hardware Innovation Monitoring, Management, Deployment Tools, Cutting Edge SDN SONiC SONiC SONiC SONiC Switch Abstraction Interface (SAI) Merchant Silicon Switch Abstraction Interface (SAI) NetworkNetwork ApplicationsApplicationsNetwork Applications Simple, consistent, and stable Hello network application stack Switch Abstraction Interface Help consume the underlying complex, heterogeneous частный 你好 नमते Bonjour hardware easily and faster https://github.com/opencomputeproject/SAI 6 SONiC High-Level Architecture Switch State Service (SWSS) • APP DB: persist App objects • SAI DB: persist SAI objects • Orchestration Agent: translation between apps and SAI objects, resolution of dependency and conflict • SyncD: sync SAI objects between software and hardware Key Goal: Evolve components independently 8 SONiC Containerization 9 SONiC Containerization • Components developed in different environments • Source code may not be available • Enables choices on a per- component basis 10 SONiC – Powering Microsoft At Cloud Scale Tier 3 - Regional Spine T3-1 T3-2 T3-3 T3-4 … … … Tier 2 - Spine T2-1-1 T2-1-2 T2-1-8 T2-4-1 T2-4-2 T2-4-4 Features and Roadmap Current: BGP, ECMP, ECN, WRED, LAG, SNMP, SYSLOG, ACL, LLDP, NTP, VLAN, DHCP,AD, TACACS+, VLAN Trunk, CoPP, IPv6, Everflow, Fast reboot, RDMA, PFC WD, QoS, Telemetry, Warm reboot, OOM, VxLAN, VRF … … … T1-1 T1-2 SONICT1-7 TSONIC1-8 T1-1 T1-2 T1-7 T1-8 TierRoadmap 1 – Row Leaf: FRR, SONICL3T1-1 MLAG,SONICT1-2 sFLOWSONICT1-7 , BGPT1SONIC-8 EVPN, NAT SONIC SONIC SONIC SONIC SONIC SONIC … … … Tier 0 - Rack SONICT0-1 SONICT0-2 SONICT0-20 SONICT0-1 SONICT0-2 T0SONIC-20 SONICT0-1 SONICT0-2 SONICT0-20 Servers Servers Servers 11 Application & Management tools SONiC [Software For Open Networking in the Cloud] Switch Switch SAI [Switch Abstraction Interface] Silicon/ASIC Inviting Contributions in All Areas • New ideas on white/open network devices • New features, applications and tools • Download it, test it and use it! • Website: https://azure.github.io/SONiC/ • Mailing list: [email protected] • GitHub: https://github.com/Azure/SONiC/ • Wiki: https://github.com/Azure/SONiC/wiki/ 13 Network Verification: ONE 14 Astronauts use high-fidelity emulators to practice complex, high-risk missions 15 Azure engineers use Open Network Emulator (ONE) to practice complex, high-risk network operations Optical link Change WAN manager manager manager Routing protocol coordinator 16 Open Network Emulator Physical Switch Virtual Machine / Container Fast network with 1000s of devices Configuration Configuration created in minutes Software Software Hardware vHardware Seamless Physical Links Virtual Links push-button deployment Configuration Configuration Configuration Configuration High fidelity Software Software Software Software devices work exactly as Hardware Hardware vHardware vHardware production support from multiple Production Emulated Production vendors Network Network 17 ONE typical usage scenario Network engineer describes desired change SONiC SONiC SONiC SONiC SONiC Pass/Fail An emulated Health verified by (with feedback, replica is created Z3 theorem prover including counter- examples)18 More Details • Mailing list: [email protected] • Publication 19 Acknowledgements • Xin Liu • Ze Gan • Guohan Lu • Yongqiang Xiong • Lihua Yuan 20 Thanks! 21 Cloud Priorities Fast Supportable Reliable Secure Borrow from Albert Greenberg 22 SONiC: Software for Open Networking in the Cloud • Switch Abstraction Interface (SAI) • Cross-ASIC portability • Modular Design with Switch State Service (SwSS) • Decoupling software components • Consistent application development model • Containerization of SONiC • Serviceability • Cross-platform portability 23 SONiC: Software for Open Networking in the Cloud • Switch Abstraction Interface (SAI) • Cross-ASIC portability • Modular Design with Switch State Service (SwSS) • Decoupling software components • Consistent application development model • Containerization of SONiC • Serviceability • Cross-platform portability 24 SONiC High-Level Architecture 25 How Routing Works in SONiC 26 SONiC: Software for Open Networking in the Cloud • Switch Abstraction Interface (SAI) • Cross-ASIC portability • Modular Design with Switch State Service (SwSS) • Decoupling software components • Consistent application development model • Containerization of SONiC • Serviceability • Cross-platform portability 27 Demo: SONiC + ONE 29 Topology 30.