rdt2.1: discussion sender: seq # added to pkt receiver:
{"Image DocumentName": "rdt2.1: discussion sender: seq # added to pkt receiver:", "Image ImageDescription": "two seq. #\u2019s (0,1) will suffice since receiver can distinguish detect retransmission. must check if received ACK/NAK corrupted. twice as many states. state must remember whether expected ACK is for seq # of 0 or 1. receiver: must check if received packet is duplicate. state indicates whether 0 or 1 is expected pkt seq # note: receiver can not know if its last ACK/NAK received OK at sender. two numbers suffice because at receiver side: if paket has same number as previously transmitted paket then RETRANSMISSION. otherwise: NEW PAKET. Transport Layer.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}