What is the sequence number range in case of stop and wait protocol?

What is the sequence number range in case of stop and wait protocol?

Irrespective of number of packets sender is having stop and wait protocol requires only 2 sequence numbers 0 and 1.

How will you determine the performance of Stop & Wait protocol?

As we can observe from the above given formula of Efficiency that:

1. 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.
2. If we increase the size of the Data packet, the efficiency is going to increase.

What are the issues of stop and wait protocol?

Disadvantages of Stop and Wait protocol

• Problems occur due to lost data. Suppose the sender sends the data and the data is lost.
• Problems occur due to lost acknowledgment. Suppose the sender sends the data and it has also been received by the receiver.
• Problem due to the delayed data or acknowledgment.

What is the effect on line utilization of increasing frame size?

Line efficiency will increase , only when we have some hops between sender and receiver. For this question we will consider that there is no hop between sender and receiver so , dividing a constant message in k frames or increase the number of frames to ( k+i),will not effect link utilization.

How do you calculate protocol efficiency?

So, the number of packets actually delivered in a given amount of time will average the number of packets sent divided by (1)/(1-p). The efficiency of the protocol will be this number divided by the number of packets sent. Therefore, the efficiency will be (1-p).

Why is stop and wait 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 N in go back n protocol?

In Go-Back-N, N determines the sender’s window size, and the size of the receiver’s window is always 1. It does not consider the corrupted frames and simply discards them. It does not accept the frames which are out of order and discards them.

What is stop protocol?

It is the simplest flow control method. In this, the sender will send one frame at a time to the receiver. The sender will stop and wait for the acknowledgment from the receiver.

How many events are there in stop and wait protocol for a single frame?

In this protocol, the sender sends one frame and waits for feedback from the receiver. When the ACK arrives, the sender sends the next frame. Note that sending two frames in the protocol involves the sender in four events and the receiver in two events.

How big should a stop and wait frame be?

A channel has a bit rate of 4 Kbps and one way propagation delay of 20 msec. The channel uses stop and wait protocol. The transmission time of the acknowledgement frame is negligible. To get a channel efficiency of at least 50%, the minimum frame size should be-

What is the capacity of a stop and Wait protocol?

If the packet size is 1 KB and propagation time is 15 msec, the channel capacity is 10 9 b/sec, then find the transmission time and utilization of sender in stop and wait protocol. Generally, channel capacity is the total number of bits which a channel can hold.

What is the minimum sequence number for stop and wait ARQ?

[available sequence numbers >= sender window size + receiver window size] Stop & Wait ARQ is a 1-bit sliding window protocol where the size of the sender window as well as the receiver window is 1. Thus, in Stop & Wait ARQ technique, the minimum number of sequence numbers required is equal to the sum of sender window size & receiver window size

How big should the frame be for a sliding window protocol?

Assume that the frame size is 32 KB and the speed of light is 3 × 10^8 m/s. Suppose a sliding window protocol is used instead. For what send window size will the link utilization be 100%?