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

Explain stored procedures, What are Stored procedures? A stored procedu...

What are Stored procedures? A stored procedure is s named collection of SQL statements and procedural logic that is compiled, verified and kept in a server database. It is typi

Path overhead - sonet sdh , Path  Overhead It is part  of SPE  and con...

Path  Overhead It is part  of SPE  and contain followings  information: Performance monitor of synchronous transport , signal , path , track ,parity ,checks,  and path  status.

Explain sonet frame transaction, Sonet Frame Transaction Transmitted ...

Sonet Frame Transaction Transmitted one subsequent to another without any gap in between. First 2 bytes - alignment bytes. F628 in Hex. - define the beginning of every

Asynchronous transfer mode (atm), Telephone companies (Telco's) stated ATM ...

Telephone companies (Telco's) stated ATM to meet various goals. It gives universal service for all support and subscribers for all users for video, voice and data. It has a single

Describe virtual channel, What is virtual channel? Virtual channel is n...

What is virtual channel? Virtual channel is normally a connection from one source to one destination, although multicast connections are also allowed. The other name for virtua

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

Advantage of repeaters, Advantage of Repeaters Repeaters provide  the ...

Advantage of Repeaters Repeaters provide  the  advantage of increasing type size  of LAN or connecting LAN  segments. Repeater can overcome 10  base 5 Ethernet LANM restrictio

ppp error detection on cisco routers , Which form of PPP error detection o...

Which form of PPP error detection on Cisco routers monitors data dropped on a link?  Ans) The Quality protocol monitors data dropped on a link. Magic Number avoids frame looping

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