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

Which type of switching is considered to be ''wire speed'', Cut-Through is ...

Cut-Through is the best mode of switching. Store and Forward reads in the whole frame, confirms the frame is valid, and then forwards the frame onto the wire. Cut-Through only chec

Ajax, Ajax is a relatively new set of techniques that, in a sense, implemen...

Ajax is a relatively new set of techniques that, in a sense, implement some of the functionalities originally provided by RPC. Ajax is primarily used to build web applications with

Show the network layer duties, Network layer duties Internetwork ...

Network layer duties Internetwork - Physical and Data link layers are jointly responsible for data delivery on the network from node to node

Determine three features of igrp, GRP uses a composite metric complete up o...

GRP uses a composite metric complete up of bandwidth and delay by default, it updates each 60 Seconds and will trigger an update if the topology changes.

What is testing, Testing is used for estimate the quality of the product. U...

Testing is used for estimate the quality of the product. Unit Testing is tested for every part of the product. Integrate the unit & tested.

describe the mips instructions - computer architecture, 1.  Detail for eac...

1.  Detail for each of the four following MIPS instructions, which actions are being taken at each of their five steps.  Do not forget to mention how and during which steps each in

Transition phases - point to point , Transition Phases A PPP connectio...

Transition Phases A PPP connection goes through phases  which can be  shown in a transition phase . Dead: In  the dead phase  the link is not  being used. There is  no ac

Error detection-- crc, Error Detection-- CRC Powerful error detecti...

Error Detection-- CRC Powerful error detection system Rather than addition, binary division is utilized A series of redundant bits called "CRC" or else "CRC remai

State ethernet frame format, Ethernet Frame Format Consists of sev...

Ethernet Frame Format Consists of seven fields There is No mechanism for acknowledging received frames considered an unreliable medium

Network analyzers, NETWORK ANALYZERS: A network analyzer also known ne...

NETWORK ANALYZERS: A network analyzer also known network monitor or a network sniffer is used to calculate the performance of or debug a network. It may report statistics s

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