Skip to main content

The Physical Link Layer

The Physical Link  Layer provides the much needed medium for communication of data. In other words, how to go about infrastructural support  is  detailed by the Physical Link Layer. 

The Physical Link Layer serves to provide the information for placement of real world communication facilities. These communication facilities are the fundamental requirements of the communication process. 

Many theoretical studies, and conceptual analysis stand proven by studying the implementation of the PPhysical Link Layer.

The Layer speaks to us to how to apply the skills related to plugging. The manner in which we should put subtlety to good use vis-a-vis connectors is explained to us. 

The details of socket connection is stated by the Physical Layer. How to make cable adjustments is narrated. Top to bottom requirements of connection establishment and its orientation is made clear to us.

The main focus of the Physical  Link Layer is on ensuring the success of the communication session. It is of great significance that the entire communication session is marked by a high degree of precision. Things move and the flow is free enough to be characterised as streamlined. 

It is the responsibility of the Physical Link Layer to regulate the communication process. The rate of data transfer over the communication line should be optimum. 

Generally communication lines in the information world have a range of transmission rates that is supported. The supported transmission rates determine customer satisfaction that is experienced upon Network usage.

The Physical Link Layer clearly states how established connection is to be released. The connection release activities are marked by undoing the jobs we had done earlier. We can recall the earlier activities that led to the establishment of the communication line. The released connection is available to us for reuse.

The Data Link Layer is above the Physical Link Layer. The Physical Link Layer provides the communication ground for the Data Link Layer.


_____________________________

_____________________________

Goodbye!

Have a great day!!

_____________________________

_____________________________





Labels:

Comments

Post a Comment

Popular posts from this blog

Interface Message Processor ( IMP )

Interface Message Processor ( IMP ) is a special purpose Computer. The Processor plays a vital role in Host-to-Host communication. IMP is placed between Host Computers.  IMP helps Hosts to exchange information. IMPs ( Interface Message Processors ) form a group. The group dedicates itself towards reliable transmission of Packets. _________________________ Note: An Interface Message Processor can be supposed to have a face. Firstly this supposed face of IMP is in the direction of the first Host, which sends the  message. Secondly, this face is turned towards the other Host.  Now, the IMP,  with its face turned around, communicates with this other Host.  Transformed message from IMP is communicated to this Host. __________________________ Message ( a piece of information ) sent from the Host ( source of information  ) is transformed into Packets. Transformation of the message into Packets is performed by an IMP. These Packets are forwarded to the receiver H...
Post a Comment
Read more

Understanding Distribution

Distributed presence means that more than one object is there. Also, these objects are situated at more than one location.  One object may establish communication with another object. The first object may deliver some message. The message can be received by another object. It can be said that object distribution is successful, as one object has succeeded in delivering a message. The second object has successfully received the message. Two objects are at a distance. Communication brings them closer. The successful communication has served to highlight that the idea of distribution is meaningful. Distribution helps exchange of information. Many different objects can form a group.  Two groups can occupy different locations.  It may happen that at a particular location there are several objects. But, all these objects talk among themselves.They talk among themselves and make things happen.  There is a resultant of this talk process. All the communicating objects  at...
Post a Comment
Read more

Message Switching

Message is a piece of information. Switching means movement.  In a Network there are a number of nodes. Nodes are vital junctions of a Network. Message Switching means transmission from one node ( one point ) of a Network to another node ( another point ). So, transmission is from point to point. Transmission from one point to another point is a single hop ( jump ). Message Switching means switch over of a Message. In one step of Message Switching,  Message switches over from one node to another.  The two nodes involved in a Switching operation are on the same Network. It cannot be that the beginning node ( source node) is on one Network and the second node ( sink node ) is on a different Network. In a point to point ( one junction to another junction ) transmission, a Message travels a part of its journey. Message moves from previous point to next point. The Network is Point-to-Point Network. A Switching activity means movement of a message. Indeed, the Message has mov...
Post a Comment
Read more