This is a very valid question for a switch that is based on a fixed-function ASIC. Intel Tofino is highly programmable, consisting of multiple pipelines and Match Action Units (MAU) inside each pipeline. An MAU contains a flexible parsing logic and multiple SRAM and TCAM table blocks that can be carved to accommodate a specific deployment. Intel can provide sample verified scalability numbers based on a reference P4 program and under NDA. However, they should never be interpreted as maximum theoretical scalability values of the chip.