Build Reliable Cloud Networks with SONiC and ONE

Wei Bai 白巍 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 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 नमते 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

• 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 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