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

Ethernet fields, ETHERNET FIELDS:  In Ethernet fields the preamble and...

ETHERNET FIELDS:  In Ethernet fields the preamble and CRC is usually not given in frame. The destination address of each is the broadcast address. There is special value reser

What are the main differences between ripv1 and ripv2, 1.  What does RIP st...

1.  What does RIP stand for? 2.  What metric does RIP use for Path Selection? 3.  If the metric used by RIP exceeds this value for a route it is considered unreachable, effec

TRAFFIC CONGESTION ASSESSMENT, Can I get help for traffic congestion anlysi...

Can I get help for traffic congestion anlysis using GIS

What is the virtual path, Along any transmission path from a given source t...

Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is known as path.

What is exterior gateway protocol, What is EGP (Exterior Gateway Protocol)?...

What is EGP (Exterior Gateway Protocol)? It is the protocol the routers in neighboring autonomous systems use to recognize the set of networks that can be reached within or by

Packet cost - network layer and routing , Packet  Cost Both  distance ...

Packet  Cost Both  distance vector and link  state  routing  are lowest  algorithms. Tow factors  govern  how  cost is applied to packets  in determines  a route. Cost  is a

Maintaining the sequence number, Maintaining the sequence number The  ...

Maintaining the sequence number The  other advantage of GBN  is that  it maintain  the next  sequence number.

Discuss network designs, This assignment will assess parts of objectives 2-...

This assignment will assess parts of objectives 2-6 from the subject outline: 1 Explain the principles of logical design 2 Discuss the strengths and weaknesses of various net

Compare error detection and error correction, Compare Error Detection and E...

Compare Error Detection and Error Correction: The correction of errors is more difficult than the detection. In error detection, checks only any error has happened. In error co

What are the key elements of protocols, What are the key elements of protoc...

What are the key elements of protocols? The key elements of protocols are a. Syntax   It refers to the structure or format of the data that is the order in which they a

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