The two sequence numbers used are 0 and 1. Accomplish by adjusting the size of sliding window used at the Propagation Delay = (Distance between routers) / (Velocity of propagation) RoundTripTime ( RTT) = 2* Propagation Delay. Get more notes and other study material of Computer Networks. In Go back N protocol, sender window size = N. Efficiency of Go back N = N / (1 + 2a) To gain better understanding about Go back N ARQ, Watch this Video Lecture.

Topics The Transport layer Acknowledgements and retransmissions (ARQ) Sliding windows Physical Data Link Network Transport Session Presentation Application. Stop and Wait ARQ mainly implements Sliding Window Protocol concept with Window Size 1. Selective Repeat 6. TimeOut ( TO) = 2* RTT. Types of ARQ... ARQ technique Sliding Window Protocol Stop and Wait ARQ Go-Back-N Selective Reject 5. = Sender Window Size + Receiver Window Size. Minimum number of sequence numbers required in Stop and Wait ARQ = 2. Watch video lectures by visiting our YouTube channel LearnVidFun. Stop and wait ARQ is a one bit sliding window protocol where- Sender window size = 1.

Next Article- Practice Problems On Go Back N Protocol. The sliding window ARQ technique has two two categories, namely, 1. Propagation Delay: Amount of time taken by a packet to make a physical journey from one router to another router. Go-Back –N 2. Thus, in stop and wait ARQ, Minimum number of sequence numbers required. Receiver window size = 1.