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Sep 11, 2024 · Go Back N ARQ which stands for Go Back N Automatic Repeat Request (ARQ) is a data link layer protocol that is used for data flow control purposes. It is a sliding window protocol in which multiple frames are sent from sender to receiver at once.
Sep 18, 2024 · The Go-Back-N ARQ is one of the Sliding Window Protocol strategies that is used where reliable in-order delivery of the data packets is required. In the Go-Back-N ARQ, we use the concept of a timer. When the receiver receives the correct frame, it sends back an acknowledgment or ACK.
Sep 18, 2024 · Go-Back-N ARQ protocol is a variation of the Automatic Repeat Request (ARQ) protocol. In GoBackN, to fill the window, the sender delivers N packets. The sender waits for a cumulative ACK before continuing to send packets after sending the entire window. Out-of-order packets are discarded at the receiver end, and only in-order packets are received.
Sep 7, 2024 · In a “go back N” pipelined protocol, the sender maintains a window which identifies the sequence number of packets it is allowed to send. When the sender receives a (positive) acknowledgement for the lowest-numbered (oldest) packet it sent that has not yet been acknowledged, which of the following actions is/are among those it will take?
Sep 20, 2024 · Calculate the optimal window size for both Selective Repeat and Go-Back-N protocols to achieve maximum throughput. Compare the resulting window sizes and discuss the implications of their differences.
5 days ago · Go Back N: It is also known as “conservative protocol”, and uses cumulative/piggybacking acknowledgments. The receiver window size is 1, and the sender window size is 2 k -1 where K is the number of bits received for the window size in the header.
May 26, 2021 · The main difference between these two protocols is that after finding the suspect or damage in sent frames go-back-n protocol re-transmits all the frames whereas the selective repeat protocol re-transmits only the frame which is damaged.
