Protocol layering - computer network, Computer Networking

Assignment Help:

Protocol Layering

To design  structural  network protocols the designers organize protocol and use the network  hard ware and software to implement  the protocol  in layers. Each  protocol  belong to  one  of the layers just as  each  functions  in the metro  train  architecture in figure2.13 belonged to a layer. The services  that a  layer offers to the above  layer is  called  service  model  of a layer.

Protocol  layering has  conceptual and structural advantages. Layering provides a structured way to discuss system components. Modularity makes  it easier to update systems components. The  first  potential drawback of layering is that one layer may  duplicate lower layer functionality. For  example  many protocol stacks provide error  recovery on both  network basis and point to point procedures. A second  potential  drawback  is that functionality at one  layer may  need information  that is present  only in  another layer  this violates the goal of separation of layers.

The protocols of the  various  layers are called  the protocol stack.  The internet  protocol stack  consists  of five  layers the physical  link  network  transport and  application layers  respectively  as figure

  1. Application
  2. Transport
  3. Network
  4. Link
  5. Physical

 


Related Discussions:- Protocol layering - computer network

Protocol layers and their service models - computer network, Protocol Laye...

Protocol Layers and their Service Models The  internet is an extremely complicated system. It  consists of many  pieces like  numerous  applications and protocols  various  t

Explain the architecture and usage of isdn, Computer Networks 1. Write ...

Computer Networks 1. Write about different network structures in use. 2. Explain the architecture and usage of ISDN. 3. Describe the concept of framing in Data Link Layer

Network Fundamental and Routing, I Have an exam Questions and i would like ...

I Have an exam Questions and i would like it to be answered. Thanks

What is redundancy, What is Redundancy? The method of including extra i...

What is Redundancy? The method of including extra information in the transmission solely for the purpose of comparison. This technique is known as redundancy.

Find out the current flows through the photodiode, Quetion: A photodiod...

Quetion: A photodiode with a dark current of 10 nA has a responsivity of 0.4 A/W at a certain wavelength. What current flows through the photodiode when it is reverse biased an

What is the frame relay, What is the Frame relay, in which layer it comes? ...

What is the Frame relay, in which layer it comes? Ans) Frame relay is an industry standard, shared access, switched Data Link Layer encapsulation that services many virtual circ

At which layer of the osi model repeaters work, At the Physical layer of ...

At the Physical layer of the OSI model Repeaters work by regenerating the signal to extend the distance it can travel.

State in brief about the local area network, State in brief about the Local...

State in brief about the Local Area Network (LAN) LAN is an interconnection of computers and associated peripherals as well as to the communications system as shown in Figure

Step to configure the host computers, Configure the Host Computers Ste...

Configure the Host Computers Step 1: Configure host computers. Configure the static IP address, subnet mask, and gateway for every host computer based on the configuration

The ip addressing scheme, An Internet address (IP address) is a unique 32-b...

An Internet address (IP address) is a unique 32-bit binary number given to a host and used for all interaction with the host. Each packet transmit across an Internet contains the 3

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