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

What do you mean by protocol, What do you mean by Protocol? In the cont...

What do you mean by Protocol? In the context of data networking, a protocol is a formal set of rules and conventions that governs how computers exchange information over a netw

Password authentication protocols (pap), Password Authentication Protocols ...

Password Authentication Protocols (PAP) PAP  implements the  traditional username and password  authentication methods. At the  request from  an authenticator the client respon

What is microwave, What is Microwave? Microwaves have been used in data...

What is Microwave? Microwaves have been used in data communications. Microwave has a higher frequency than radio waves and thus can handle larger amounts of data.

Determine the specification of fddi, FDDI has four specifications: 1. M...

FDDI has four specifications: 1. Media Access Control it defines how the medium is accessed 2. Physical Layer Protocol it defines data encoding/decoding procedures 3. Phy

Company access - computer network, Company Access Company  access is t...

Company Access Company  access is that in which  end systems are connected in connecting end  systems in a organization or educational  institution into the network. On  co

What is a protocol, What is a protocol? The term protocol refers to a s...

What is a protocol? The term protocol refers to a set of rules and process that govern the transmission of messages over a physical networking medium. The most common network p

Thread libraries, The most difficult representatives of shared memory progr...

The most difficult representatives of shared memory programming models are thread libraries present in mainly of the modern operating systems. Some examples for thread libraries ar

What is the advantage of address sharing, What is the advantage of address ...

What is the advantage of address sharing? By using address translation instead of routing, address sharing gives an inherent security benefit. That's because host PCs on the In

Three main functions at layer three of the osi model, Identify the 3 major ...

Identify the 3 major functions at layer 3 of the OSI model Ans) Layer three explains the path, forwards the packet and executes software / logical addressing.

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