What is throughput in Stop and Wait protocol?
Throughput. The number of bits that a receiver can accept in total time duration (i.e. transmission time(Td) + 2 * propagation delay(Tp)). It is also called effective bandwidth or bandwidth utilization. In Stop and Wait, in the total duration, the receiver can accept only one frame.
Why is stop and wait ARQ inefficient?
Stop-and-wait ARQ is inefficient compared to other ARQs, because the time between packets, if the ACK and the data are received successfully, is twice the transit time (assuming the turnaround time can be zero). The throughput on the channel is a fraction of what it could be.
What is the difference between Stop and Wait and wait ARQ?
Working of Stop & Wait ARQ is almost like Stop & Wait protocol, the only difference is that it includes some additional components, which are: Time out timer. Sequence numbers for data packets. Sequence numbers for feedbacks.
What is the efficiency of a Stop and Wait?
On increasing the distance between source and receiver the Efficiency will decrease. Hence, Stop and Wait is only suitable for small area network like LAN. It is not suitable for MAN or WAN, as the efficiency will be very low. If we increase the size of the Data packet, the efficiency is going to increase.
What is the window size in stop and wait ARQ?
1
Explanation- In stop and wait ARQ, Sender window size is 1. This allows the sender to keep only one frame unacknowledged.
Which is true for stop and wait protocol?
After sending the data, he stops and waits until he receives the acknowledgment from the receiver. The stop and wait protocol is a flow control protocol where flow control is one of the services of the data link layer. It is a data-link layer protocol which is used for transmitting the data over the noiseless channels.
What is main disadvantage of Stop and Wait protocol?
disadvantages of stop-and-wait: fairly slow: the sender can send at most one new packet per RTT. not robust: if the ack can get lost, when the receiver gets a packet, the receiver cannot tell if it is a retransmission or a new packet.
What is the main disadvantages of Stop and Wait flow control?
Major drawback of Stop-and-Wait Flow Control is that only one frame can be in transmission at a time, this leads to inefficiency if propagation delay is much longer than the transmission delay.
For what range of frame sizes is stop and wait at least 50% efficient?
For what range of frame sizes does stop-and-wait give an efficiency of at least 50%? Therefore, an efficiency of at least 50% requires a frame size of at least 160 bits.
What is the maximum size of the sender and receiver windows for stop and wait protocol?
Sender can send a single packet at a time. Sender should wait until receiving the acknowledgement of the first packet to send the next packet. In Stop-and-Wait protocol, the maximum sending and receiving window size is 1. Chapter 3, Problem 5P is solved.