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

What is data link of osi model, Q. What is data link of osi model? - Th...

Q. What is data link of osi model? - The data link layer offers access to the networking media and physical transmission across the media and this enables the data to locate it

What is internet, I have a project on Information Communication Technology(...

I have a project on Information Communication Technology(I.C.T). So sir I want to know that what is internet? and how it works?

Disadvantages of ip sec tunnelling mode, Disadvantages of IP sec  Tunnelli...

Disadvantages of IP sec  Tunnelling mode IP sec  tunnelling  mode has the  following  disadvantage a.Encryption of  small  packets  generates a lot  networks  over head  thu

Illustrate about the working of socks protocol, Illustrate about the workin...

Illustrate about the working of Socks protocol SOCKS is an open, industry-standard protocol advanced by the Authenticated Firewall Traversal working group of the IETF (Internet

Explain about stored procedure, A stored procedure is a named collection of...

A stored procedure is a named collection of SQL statements and procedural logic that is compiled, verified and kept in a server database. It is typically treated like any other dat

What is the mesh network, A network in which there is multiple network link...

A network in which there is multiple network links among computers to provide multiple paths for data to travel.

Combine subtitution and transposition, how to own cipher to encrypt and dec...

how to own cipher to encrypt and decrypt message by combine both substitution ans transposition algorithm using c program

Which layer defines the physical topology, The Physical layer deals with th...

The Physical layer deals with the definite physical medium and the method of transporting 1s and 0s.

What is difference among rip and ripv2, RIP It is Broadcast There i...

RIP It is Broadcast There is no authentication It Support FLSM   RIPV2 It is Multicast There is Authentication It Support VLSM

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