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  1. Aug 31, 2023 · Learn how selective repeat protocol works to improve efficiency and reduce bandwidth waste in unreliable links. See the sender and receiver windows, buffers, sequence numbers, acknowledgements and retransmissions in this protocol.

    • Techniques to Control Arq
    • Requirements For Error Control
    • Selective Repeat Arq
    • Explanation
    • GeneratedCaptionsTabForHeroSec

    Generally, there are three types of techniques which control the errors by Automatic Repeat Request (ARQ) they are − 1. Stop-and-wait ARQ 2. Go-Back-N ARQ 3. Selective Repeat ARQ

    There are some requirements for error control mechanisms and they are as follows − 1. Error detection− The sender and receiver, or any must ascertain that there is some error in the transit. 2. Positive ACK− Whenever a receiver receives a correct frame, it should acknowledge it. 3. Negative ACK− Whenever the receiver receives a damaged frame or a d...

    It is also known as Sliding Window Protocol and used for error detection and control in the data link layer. In the selective repeat, the sender sends several frames specified by a window size even without the need to wait for individual acknowledgement from the receiver as in Go-Back-N ARQ. In selective repeat protocol, the retransmitted frame is ...

    Step 1− Frame 0 sends from sender to receiver and set timer. Step 2− Without waiting for acknowledgement from the receiver another frame, Frame1 is sent by sender by setting the timer for it. Step 3− In the same way frame2 is also sent to the receiver by setting the timer without waiting for previous acknowledgement. Step 4− Whenever sender receive...

    Learn what selective repeat ARQ is, how it works, and its advantages and disadvantages. See an example of selective repeat protocol and compare it with other ARQ techniques.

  2. Mar 18, 2024 · In this tutorial, we’ll discuss a protocol used for the reliable delivery of data packets in networks: Selective Repeat Protocol (SRP). Furthermore, we’ll present an example of packet transmission using the SRP.

    • Subham Datta
  3. Selective Repeat ARQ is also known as the Selective Repeat Automatic Repeat Request. It is a data link layer protocol that uses a sliding window method. The Go-back-N ARQ protocol works well if it has fewer errors.

  4. Learn how selective repeat protocol works as a sliding window protocol that resends only the lost or corrupted packets. Compare it with go-back-n protocol and see an example of selective repeat operation.

  5. Learn about the selective repeat ARQ, a sliding window protocol that ensures reliable in-order delivery of data packets. See how it works, its requirements, advantages and disadvantages, and an example of data transmission.

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  7. Mar 18, 2023 · 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 selective repeat protocol re-transmits only that frame which is damaged.

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