Any ideas how to promote the acknowledgement of messages successfully received as opposed to requesting those missed. My students keep getting hung up on that. I am trying to build on using ACK as a more affirmative way to tell the sender you got the message. Also highlighting that if a NAK gets dropped sender doesn’t know, but if an ACK gets dropped and you add a timeout in your protocol for an ACK, the sender knows to resend and the receiver will then have an opportunity to resend the ACK.
Appreciate any ideas that add to my thoughts or how to better share with students.