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Software for Open Networking in the Cloud (SONiC) is the open networking solution used in Microsoft’s Azure Cloud.

SONiC is the networking switch software used in the lower layer of Azure Datacenter fabric (TOR and Aggregation).

Most important, is an open-source project available on our SONiC GitHub Repository.

SONiC is a uniquely extensible platform, with a large and growing ecosystem of hardware and software partners, that offers multiple switching platforms and various software components.

SONiC is built on the Switch Abstraction Interface (SAI), which defines a standardized API. Network hardware vendors can use it to develop innovative hardware platforms that can achieve great speeds while keeping the programming interface to ASIC (application-specific integrated circuit) consistent. Microsoft open sourced SAI in 2015. This approach enables operators to take advantage of the rapid innovation in silicon, CPU, power, port density, optics, and speed, while preserving their investment in one unified software solution across multiple platforms.

SDN

This a great example of SDN solution and how use the power of the hardware layer to provide NVF.

Of course, does not exclude overlay or Network Virtualization solutions, and can be integrated with them.

For more information see Microsoft official page: https://azure.microsoft.com/en-us/blog/sonic-the-networking-switch-software-that-powers-the-microsoft-global-cloud/

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Virtualization, Cloud and Storage Architect. Tech Field delegate. VMUG IT Co-Founder and board member. VMware VMTN Moderator and vExpert 2010-24. Dell TechCenter Rockstar 2014-15. Microsoft MVP 2014-16. Veeam Vanguard 2015-23. Nutanix NTC 2014-20. Several certifications including: VCDX-DCV, VCP-DCV/DT/Cloud, VCAP-DCA/DCD/CIA/CID/DTA/DTD, MCSA, MCSE, MCITP, CCA, NPP.