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

Define network, Communication, Resource sharing and Media (When many host s...

Communication, Resource sharing and Media (When many host share their resources with every other OR when many devices connect with each other for resource sharing )

Cpe is an acronym for, Customer Premise Equipment (CPE) are devices physica...

Customer Premise Equipment (CPE) are devices physically located at the subscriber's premises. Includes both owned and leased equipment.

Explain the basic of network properties, Explain the basic of Network Prope...

Explain the basic of Network Properties   The subsequent properties are related with interconnection networks. 1)  Topology: It refers how the nodes a network are systema

Network protocols - computer networks, Network Protocols In computer  ...

Network Protocols In computer  networks  communication  occurs between  the entities in different  systems an entity  is anything  that is  capable  of sending  or receiving

Show VLAN membership and configuration, Q. Show VLAN Membership and Configu...

Q. Show VLAN Membership and Configuration? VLAN Membership - May be classified by - Switch port numbers - MAC addresses - IP addresses - IP multicast addresse

Packet switching - fundamentals of networks, Packet Switching In the  ...

Packet Switching In the  packet  switching network  type on specific  path is  used for  data  transfer. Instead the data is chopped up into  small  pieces called packed and s

Low frequency cut-off of the band-pass, Question Approximately what is ...

Question Approximately what is the low frequency cut-off of the band-pass filter shown in the figure?

Determine the types of intranet, Determine the Types of intranet Intran...

Determine the Types of intranet Intranets have been broadly classified into three types based on their functionality, viz., The Bulletin Board, Database Management and

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