Layers, massages, segments, datagram''s and frames, Computer Networking

Assignment Help:

Layers, Massages, Segments, Datagram's and Frames

Figure 2.15 show the physical  path data takes down a  sending  end  systems  protocol  stack up and  down the  protocol stacks of an intervening link  layer  switch  and router  and then  up the protocol stack at the  receiving end systems.

1376_Layers, Massages, Segments, Datagram’s and Frames.gif

Host  Routers and link layer switches each contains a different set  of layer reflecting their  differences in functionality

As  show  in figure2.15 link  layer switches implement  layers  1 and 2 routers implement  layer 1 through 3. This  means for example that internet routers are capable of implementing the IP protocol ( a layer 3 protocol) while link  layer switch  are not .

 Host  routers and link layer switches each contains a  different  set of layer  reflecting  their  different  in functionality.

Figure 2.15 also  illustrates  the important  concept  of encapsulation. At the  sending  host  an application layer messages(M) is passed  to the transport layer. In  the simple  case the transport layer takes the massage and appends additional  information( so - called transport layer header information. H1) that  will be used  by the receiver side transport  layer. The  application  layer message and the transport layer header information together constitute the transport layer segment. The  transport layer segment thus  encapsulates the application layer message. The added  information might include information allowing  the receiver side transport layer to deliver the message  up to  the appropriate application and error detection bits  that allow  the receiver to determine  whether bits in  the message  have been  changed in route. The transport layer then passes the segment to the network  layer which  adds  networks layer header information(H n) such as source and  destination end system  address creating a network layer datagram. The  datagram  is then  passed  to the  link layer. Which  will add its  own link  layer  header information  and create  link  layer  frame.

 

 

 


Related Discussions:- Layers, massages, segments, datagram''s and frames

Differentiate between ipv4 and ipv6, Question 1 Write short notes on Re...

Question 1 Write short notes on Reserved IP addresses and Special use IP addresses 2 Explain about the packet switching mechanism based on Virtual Circuit 3 Explain about

Multiple activity charts, A multiple activity chart records the related ...

A multiple activity chart records the related sequence of activities of more than one subject, men and / or machine on a common time scale showing the relationship between

Advantages and disadvantages of public and private network, The disadvantag...

The disadvantages and advantages of Private and Public networks are shown in the table below:

Explain about data link layer sub layers, Data Link Layer Sub layers ·  L...

Data Link Layer Sub layers ·  Logical Link Control (LLC) - upper layer · Handles control information, logical addressing and data · MAC (Medium Access Control) - lower layer ·

What is the terminal emulation, What is the Terminal Emulation, in which la...

What is the Terminal Emulation, in which layer it comes? Ans) The use of software, installed on PC or LAN server, that permits the PC to function as if it were dumb terminal dir

Calculate output voltage amplitude from the circuit, Question The circu...

Question The circuit in the figure is driven by a 9 mV amplitude signal generator with an output impedance of 2 kW. What is the output voltage amplitude from the circuit in the

What is region, What is region? When hierarchical routing is used, the ...

What is region? When hierarchical routing is used, the routers are separated into what we will call regions, with every router knowing all the details about how to route packet

What is meant by asymmetrical protocols, What is meant by Asymmetrical prot...

What is meant by Asymmetrical protocols? There is a many-to-one relationship among clients and server. Clients always initiate the dialog by requesting a service. Servers are p

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