This is all complete gibberish. Packets per second is based on the lower bound and Jumbo Frames denotes an MTU or upper bound. Further switches don't aggregate

This is all complete gibberish. Packets per second is based on the lower bound and Jumbo Frames denotes an MTU or upper bound. Further switches don't aggregate smaller Ethernet frames into Jumbo frames. Packet per second also has zero to do with an Ethernet cable's length. PPS is the "forwarding rate" of the switch which is distinct from the bandwidth of a switch's backplane or switching fabric. Again switching bandwidth and forwarding Bandwidth are two different things. There is also no need for me to "ask them why they have quoted that speed", that's standard with hardware vendors for PPS.