Can you have the same message encoded with each of the two sequencing numbers? What would happen if B received message C twice, one with a 0 and another with a 1?
That can't happen. If the sender transmits a message with a given sequence number and has to retransmit because no acknowledgement is received, it will continue to use the same sequence number for that message as it retransmits it until it is acknowledged.
By Tom Murtagh (Admin) on Wednesday, December 2, 1998 - 09:22 pm:
Tom