• OSFP vs. QSFP-DD: There seems to be more preference for the OSFP form factor when moving to 800 Gbps. As shown in the chart above, both Amazon and Meta are currently deploying QSFP/QSFP-DD but most likely will, in the near future, deploy OSFP with next-generation speed. However, Microsoft is still in checks. In fact, on the show floor, Microsoft was showcasing 1.6 T QSFP-DD. The major advantage of QSFP-DD is backward compatibility. Therefore, some cloud SPs such as Microsoft are trying to figure out how much more mileage they can get out of QSFP-DD before making the change to OSFP.

Source: https://www.opencompute.org/blog/ocp-global-summit-2022-key-takeawaysnetworking-perspective

Friend of Foe?

Please Remember that slide 10 from the presentation (https://poet-technologies.com/docs/presentations/POET%20Meeting%20with%20Warrant%20Holders%20-%20Sept%207%202022.pdf) on which we can see that a 1.6T is doable inside a QSFP-DD for POET.