The main advantage of stop & wait protocols is its accuracy. Next frame is transmitted only when the first frame is acknowledged. So there is no chance of frame being lost. The main disadvantage of this method is that it is inefficient.
What is the main disadvantages 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 advantage of stop-and-wait flow control?
The flow control method will check that the senders send the data only at a rate that the receiver can receive and process. The main advantage of stop & wait protocols is their accuracy. The next frame is transmitted only when the first frame is acknowledged. So there is no chance of the frame being lost.
What are the benefits of stop-and-wait over sliding window flow control when compared to each other *?
In Stop and Wait protocol, sender sends single frame and waits for acknowledgment from the receiver. In Sliding window protocol, sender sends multiple frames at a time and retransmits the damamged frames. Stop and Wait protocol is less efficient. Sliding Window protocol is more efficient than Stop and Wait protocol.
What are the advantages of pipelining over stop and wait in reliable data transfer?
Pipelining allows a sender to send out multiple packets without waiting for acknowledgment. But all packets that have been sent must be retained until they are acknowledged in case they need to be resent.
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.
Which protocol improves the efficiency of stop and wait protocol?
Sliding Window protocol is more efficient than Stop and Wait protocol. Sender’s window size in Stop and Wait protocol is 1. Sender’s window size in Sliding Window protocol varies from 1 to n. Sorting of frames is not needed.
What are the issues of stop and wait protocol at transport layer?
Problems :
- Lost Data.
- Lost Acknowledgement:
- Delayed Acknowledgement/Data: After a timeout on the sender side, a long-delayed acknowledgement might be wrongly considered as acknowledgement of some other recent packet.
- Time Out:
- Sequence Number (Data)
- Delayed Acknowledgement:
- References:
Which protocol improves the efficiency of stop-and-wait protocol?
What is the main advantage of using Go Back N ARQ protocol over stop and wait ARQ protocol?
Go-Back-N ARQ is a more efficient use of a connection than Stop-and-wait ARQ, since unlike waiting for an acknowledgement for each packet, the connection is still being utilized as packets are being sent. In other words, during the time that would otherwise be spent waiting, more packets are being sent.
Why is pipelined protocols better than stop-and-wait?
Thus, if the sender needs to send several packets, then the time until the last of the packets is sent will be shorter with a pipelined protocol. Thus, a pipelined protocol can have better performance than the Stop-and-Wait protocol.
What are the differences between stop-and-wait and pipelining protocol?
Difference between Stop and Wait protocol and Sliding Window protocol
| S.NO | Stop-and-Wait Protocol |
|---|---|
| 4. | Receiver window size of Stop-and-Wait Protocol is 1. |
| 5. | In Stop-and-Wait Protocol, sorting is not necessary. |
| 6. | Efficiency of Stop-and-Wait Protocol is 1/(1+2*a) |
| 7. | Stop-and-Wait Protocol is half duplex. |
What are the advantages and disadvantages of Stop & Wait protocol?
• The main advantage of stop & wait protocols is its accuracy. Next frame is transmitted only when the first frame is acknowledged. So there is no chance of frame being lost. • The main disadvantage of this method is that it is inefficient. It makes the transmission process slow.
What are the advantages and disadvantages of the TCP/IP protocol?
The main advantage of this protocol is its simplicity but it has some disadvantages also. For example, if there are 1000 data packets to be sent, then all the 1000 packets cannot be sent at a time as in Stop and Wait protocol, one packet is sent at a time.
What are the characteristics of stop and wait ARQ?
Characteristics of Stop and Wait ARQ: It uses link between sender and receiver as half duplex link. Throughput = 1 Data packet/frame per RTT. If Bandwidth*Delay product is very high, then stop and wait protocol is not so useful. The sender has to keep waiting for acknowledgements before sending the processed next packet.
How many sequence numbers are required for stop and Wait protocol?
Irrespective of number of packets sender is having stop and wait protocol requires only 2 sequence numbers 0 and 1 The Stop and Wait ARQ solves main three problems, but may cause big performance issues as sender always waits for acknowledgement even if it has next packet ready to send.
