"Adapting and migrating FBOSS to SAI means we can onboard multiple ASICS from multiple vendors more quickly and easily onboard new ones in the future. Now, FBOSS has been adapted to use the OCP SAI, which means more silicon vendors can make chips to work in the ecosystem. The Facebook (now Meta) network operating system FBOSS has previously used specific APIs according to the ASICs included in the switch. The switches are made by Celestica and can be altered and used by ISPs and other players. Both switches have higher front panel port density and greater performance, with room for future expansion. The Wedge 400 has a Broadcom Tomahawk 3 ASIC, while the 400C uses Cisco’s Silicon One - the first Facebook switch using Cisco’s new chip. And in conjunction with this, we’ve migrated our data center network hardware to a standard and open API - the Open Compute Project (OCP) Switch Abstraction Interface (SAI)."īroadcom and Cisco Systems have provided ASICs for the latest versions of Facebook's top-of-rack (TOR) switches - the Wedge 400 and 400C, which are already in use in Facebook/Meta data centers, offering four times the performance of the existing Wedge 100S systems - upgraded from 3.2Tbps to 12.8Tbpx. "As we head toward the next major computing platform with a continued spirit of embracing openness and disaggregation, we’re announcing two new milestones for our data centers: We’re sharing our next-generation network hardware portfolio in our data centers, developed in close partnership with multiple vendors. "Open infrastructure technologies and networking hardware will play an important role as we build new technologies for the metaverse, where billions of people will someday come together in virtual spaces," said a Facebook blog detailing the announcement.
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