The size of the receiver window in Go Back N ARQ is equal to 1.The size of the sender window in Go Back N ARQ is equal to N.Given below are the characteristics of the Go-Back-N ARQ protocol. The integer 'N' in the Go Back 'N' is the frame size.įor example in Go Back 4 ARQ, the size of the sender window is 4. The sender window is a fixed-sized window that defines the number of frames that are transmitted from sender to receiver at once.
Sender Window and Receiver Window in Go-Back-N ARQ Protocol In this article, we will discuss all the important concepts related to the Go Back N ARQ protocol in detail. Pipelining means sending a frame before receiving the acknowledgment for the previously sent frame. Pipelining is allowed in the Go Back N ARQ protocol. Multiple frames present in a single window are sent together from sender to receiver. Go Back N ARQ is a sliding window protocol which is used for flow control purposes. While in sliding window protocol, multiple frames can be sent at a time from sender to receiver. The difference between these two categories of flow control protocols is that in the stop and wait protocol, only one data frame is sent at a time from sender to receiver. The flow control protocols are generally divided into two categories i.e. We will be discussing flow control protocols in this article. This flow and error control mechanism follows some set of rules/protocols. We all know that the Data Link Layer (DLL) in the OSI model is responsible for the flow and error control of the data which is sent from sender to receiver.
The working of the Go Back N ARQ protocol will also be discussed in detail.This article defines what the Go Back N ARQ protocol is along with its important features.The number of frames that are sent at one depends upon the size of the window that is taken. It is a sliding window protocol in which multiple frames are sent from sender to receiver at once. 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.
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