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FAQ
A: DASH w/SONiC is a collection of SmartNic software components required to have a fully functional, programmable device. It is designed to meet the requirements of a cloud data center.
A: SAI stands for "Switch Abstraction Interface". It is a common API that is supported by many switch ASIC vendors. SONiC uses SAI to program the ASIC. This enables SONiC to work across multiple ASIC platforms naturally. DASH - Disaggregated APIs for SONiC Hosts is a set of APIs (as much like SAI as possible) leveraging hardware to increase performance of Connections per Second and Flows in different scenario models (performing encapsulation, lookups, etc...). Contribution and adherence to conformance and performance tests.
A: No. SONiC is Linux-based, but is not a distribution by itself. Today, SONiC runs on Debian Jessie. SONiC has also been ported to Ubuntu (as a snap).
A If you clone the sonic-buildimage repo and follow the instructions there, you should be able to produce the SONiC image yourself. Our Jenkins server also produces a regular build. So you can download the image there as well. The list of supported devices and ASICs are maintained here.
A: If you clone the DASH repo and follow the instructions there, you should be able to produce the SONiC image yourself. Our Jenkins server also produces a regular build. So you can download the image there as well. The list of supported devices and SmartNics are maintained here.
A: to be written.
A: DASH supports 'to be written' that are supported by SAI. Those SmartNics are available via various switch hardware through both ODMs and OEMs. You can find a full list of supported devices and platforms here.
A: No. DASH is purely a software solution.
A: Please follow the porting guide.
A: To be written.
A: The deployment is growing from one data center to cross regions. We plan to rapidly expand DASH deployment over the coming months.
A: DASH is a community supported product. Microsoft is committed to engage with the community to keep DASH relevant, reliable and stable. We use it in our own production network.
A: In order to solve the Connections per Second (CPS) problem, we want to offload all of the SDN to the hardware.
A: We are not opposed to using the CPU if a supplier has a method to achieve the high CPS #'s we are targeting. It is a different 'availability' story when a card fails vs. when an entire device fails. Internally we have tried using a chassis w/FPGAs and NICs w/processing in the CPU, however it hasn't scaled in our testing.
A: DASH welcomes collaboration with the community in many different capacities. Please check the contributor's guide for details: https://github.com/Azure/DASH/wiki
Microsoft has no plans to sell DASH to customers or provide network engineering or development support.
Last edit by KrisNey on July 12, 2021