Looking briefly at a TCP transmission-related youtube video: https://www.youtube.com/watch?v=GfpThGUvbrM, I see that 'ACK's are sent per hop?
Is this the case of all TCP transmissions? Are there significant performance benefits of buffering TCP information per 'hop' vs conceptually sending packets to a destination and waiting for 'ACK's from that destination? (i.e. NOT buffering TCP packets on intermediary devices)?
Is it because this would greatly increase the number of 'dropped' packets? (I assume this would be the case at least...)