What is gbn protocol?
Go-Back-N ARQ is a specific instance of the automatic repeat request protocol, in which the sending process continues to send a number of frames specified by a window size even without receiving an acknowledgement packet from the receiver. Go-Back-N protocol, also called Go-Back-N Automatic Repeat reQuest, is a data link layer protocol that uses a sliding window method for. That's why it is called Go Back N. From Wikipedia, the free encyclopedia. Go back N Protocol in computer networks is a Sliding Window Protocol.