Let us get to know the description of Abdel-Aziz.
So in this lecture, we will talk about it in an address on Macarius, also known as a physical address.
Then we'll see what is logical address.
And after that, we'll see what is a, quote, address, what is a physical address in order to communicate
or transfer the data from one computer to another computer.
We need some address in computer network.
Various types of addresses are introduced.
Each works at a different level.
Media Access Control Address that is a MAC address is the physical evidence, which works at detailing.
Earlier in this lecture, we will discuss about addressing in detail, which is Mac addressing.
The physical address, also known as the address, is the address of a number as defined by its land
or when it is included in the frame used by the detailing clear it is the lowest level address, the
physical address have authority or the network that is land or when the size and format of these addresses
vary depending upon the network.
For example, Internet users are six byte, which is equivalent to 48 bits physical address that is
imprinted on the network interface card that is icy local dog that is.
Apple, however, has only a one by dynamic address that changes each time the station comes up.
Mac addresses are unique, 48 bits, hardware, number of a computer which is embedded into a network
card that is Anisi during the time of manufacturing.
Mac address is also known as physical evidence of a network device, according to Tripoli, standard
data is divided into two suppliers logical link control supplier that is L.L.C. and media access controller,
which is missing, out of which Mac address belongs to Media Access Control Supplier.
What is the format of a Mac address, as you can see at the bottom of the presentation?
There is a 12 digit hexadecimal number, which is a six byte binary number, which is mostly represented
by Coolen hexadecimal notation for six digits.
As you can see in the presentation pressie five be full of Mac address identifies the manufacturer Caldas
or UI Organizational Unique Identifier.
I believe the station authority committee assigns these Mac address to the registered vendors, for
example, Sethe 466 belongs to Cisco Torrisi five before it belongs to Google 3C, Denine 2B belongs
to HP, etc..
Now, the rightmost six digits, which are blank in this presentation, represent network interface
controller, which is assigned by the manufacturer.
As discussed earlier, Mac address is represented by Colen hexadecimal notation.
There are three types of McGriddles unicast, multicast and broadcast.
I will tell you in one sentence what these addresses mean.
Unicast, a unicast addressed frame is only sent out to the interfaith, leading to specific Anisi multicast
address allows the source to send Afrim to a group of devices.
Broadcast frames which are designed to mac address f f f f f f f f f f six times f f bear will reach
every computer belonging to that land segment.
So let us move on to the next address, which is the logical address.
What are logical interests?
Logical addresses are necessary for universal communications that are independent of underlying physical
networks.
Physical addresses are not adequate in an Internet environment, very different networks can have different
address formats or universal addressing system is needed in which each host can be identified uniquely
regardless of the underlying physical network.
The logical addresses are designed for this purpose.
Only a logical address in the Internet is currently a 32 bit address that can uniquely define a host
connected to the Internet.
Make sure that this sentence, which I'm going to tell right now, is very important not to publicly
address and visible hosts on the Internet can have same IP address.
Is it possible that you and your friend lives in the same house in the same way, nor to uniquely identify
devices can have same IP address?
There are two types of IP address IP v4, which means IP address, Vergennes phone and IP address within
six.
IP address, that is IP v4 is further divided into five classes, class E, two class E, we are going
to discuss about these classes in the upcoming lectures.
The next one is the port address.
The IP address and the physical address are necessary for quantity of data to travel from a source to
the destination host.
However, arrival at the destination host is not the final objective of data communications on the Internet.
A system that sends data from one computer to another computer is not complete, but how today computers
are devices that can run multiple processes.
At the same time, you might be using Gmail simultaneously.
You might be using Microsoft Word office or anything a.
That is why the end objective of the Internet communication is a process communicating with another
process.
For example, computer A can communicate with computers, see by the Internet, but at the same time
computer it communicates with computers.
B Boeing FPP for these processes to receive data simultaneously, we need a method to label the different
processes.
In other words, the need addresses in the TCP IP architecture label assigned to a process called supporters
of both addressed in PXP IP protocol is 16 bits in length.
Let us have a quick recap.
We discussed what is a Mac address and its uses.
We saw how logical address is used, this port address and its uses to demonstrate a Real-Life example.
Let us consider someone from Amazon or Flipkart wants to deliver a package to your house.
Right.
The Mac address is a place of the region where you live.
For example, suppose you are living in region.
The logical address is the address of your building or your house.
So let us consider you live at House B in the region.
But when a delivery person comes to your house, he wants that package to get delivered to you specifically
because that package is ordered by you.
Therefore, C is the address which is used to deliver that package to you.
And that is why all the three addresses are important in computer network.
In the next lecture, we'll see in detail what is an IP address and we will see the working of IP address
as well as different types of IP address.