What is piggybacked ack, Computer Networking

Assignment Help:

What is piggybacked ACK

The protocol will be incorrect. Suppose that 3-bit sequence numbers we are using. Consider following situation:

A just send frame 7.

B gets frame and sends a piggybacked ACK.

A gets ACK and sends frames 0-6, all of that get lost.

B times out and again transmits its current frame, with ACK 7.

Look at the situation at A when frame with r.ack = 7 arrive. The key variables are AckExpected = 0, r.ack = 7, and Next Frame to Send = 7. The modified among will return true, causing A to think lost frames were being acknowledged.

 


Related Discussions:- What is piggybacked ack

Name the 10base5 connectors, 10Base5 Connectors Transceiver - inter...

10Base5 Connectors Transceiver - intermediary device as well called a medium attachment unit (MAU) Performs CSMA/CD function may perhaps contain small buffer Atta

Data bandwidth requirements, Calculate data bandwidth requirements from and...

Calculate data bandwidth requirements from and to each site.

Write the concept of simplex, Describe Concept of Simplex, Half Duplex and ...

Describe Concept of Simplex, Half Duplex and Full Duplex dialogs?

Explain about star topology, Explain about star topology This topology,...

Explain about star topology This topology, obviously, needs a great deal of cabling. This design gives an excellent platform for reconfiguration and trouble-shooting. Changes t

Efficiency vs. number of processors, Efficiency :- The other main metr...

Efficiency :- The other main metric used for performance measurement is efficiency of parallel computer system i.e. how the resources of the parallel systems are being utilized

How many cables are needed, QUESTION a) List the seven layers of the IS...

QUESTION a) List the seven layers of the ISO-OSI model and briefly describe the role of each layer b) Describe the functions of the following intermediate systems- Rep

Two routers running igrp to communicate their routes, What must be true for...

What must be true for two Routers running IGRP to communicate their routes? Ans) Similar autonomous system number

Name the factors that affect the performance of the network, Name the facto...

Name the factors that affect the performance of the network? a. Number of Users b. Type of transmission medium c. Hardware d. Software

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd