They use Tofino as the networking switch. But Intel is discontinuing Tofino so I'm wondering what does future upgrade path look like for Oxide? Would they consider something like a p4 programmable DPU as the replacement?
Oxide racks curren use AMD CPUs and and after buying Pensando AMD now offer P4 DPUs. I would hazard a complete guess and say maybe a move from Tofino to Pensando is on the cards for future networking revisions.
It kind of can if you want to add programmability to your switches. So on top of traditional switches, you can add a cluster of DPUs in order to add networking functionalities to your switches. Microsoft has done just that. https://www.usenix.org/system/files/nsdi23-bansal.pdf