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How does the Go-Back-N ARQ protocol ensure reliable data transmission over a network?
The Go-Back-N ARQ protocol ensures reliable data transmission over a network by using sequence numbers to track and acknowledge the successful receipt of data packets. If a packet is lost or corrupted, the protocol prompts the sender to retransmit all unacknowledged packets from the last successfully received packet. This process helps to maintain the correct order of data transmission and minimize errors in the network.
Lost transport layer packets?
Transport layer is the fourth layer in the OSI model. Transport layer is responsible for process to process delivery of entire message. Other than that it also control connection, flow of data and error , thus will resend the packet if it get lost in between.
What are packets?
If we are sending a file in one go and if some error occurred in between the file transfer then the complete file has to be resend which wastes the bandwidth so to prevent this, the file to send is divided in to smaller unit which we call packet, and then send packets 1 by one so that if a packet is lost then we need to send only that particular packet not the complete file.
What is packet loss in networking?
A packet may be lost due to congestion: too many packets are sent, the queue gets full, and eventually the router or switch starts dropping packets. It may also occur due to different failures; including temporary cabling problems, problems in a switch or router, etc.; these in turn can cause temporary problems with the routing information (a "non-converged network"), causing the packets to travel in loops until the TTL runs out, or a router erroneously concluding that a certain address can't be reached. This latter problem might also be caused by a misconfigured router.
Is TCP a reliable protocol for data transmission?
Yes, TCP (Transmission Control Protocol) is a reliable protocol for data transmission. It ensures that data is delivered accurately and in the correct order by using error checking and retransmission of lost packets.
