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Let us get to know the description of Abdel-Aziz.

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So in this lecture, we will talk about it in an address on Macarius, also known as a physical address.

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Then we'll see what is logical address.

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And after that, we'll see what is a, quote, address, what is a physical address in order to communicate

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or transfer the data from one computer to another computer.

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We need some address in computer network.

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Various types of addresses are introduced.

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Each works at a different level.

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Media Access Control Address that is a MAC address is the physical evidence, which works at detailing.

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Earlier in this lecture, we will discuss about addressing in detail, which is Mac addressing.

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The physical address, also known as the address, is the address of a number as defined by its land

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or when it is included in the frame used by the detailing clear it is the lowest level address, the

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physical address have authority or the network that is land or when the size and format of these addresses

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vary depending upon the network.

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For example, Internet users are six byte, which is equivalent to 48 bits physical address that is

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imprinted on the network interface card that is icy local dog that is.

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Apple, however, has only a one by dynamic address that changes each time the station comes up.

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Mac addresses are unique, 48 bits, hardware, number of a computer which is embedded into a network

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card that is Anisi during the time of manufacturing.

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Mac address is also known as physical evidence of a network device, according to Tripoli, standard

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data is divided into two suppliers logical link control supplier that is L.L.C. and media access controller,

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which is missing, out of which Mac address belongs to Media Access Control Supplier.

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What is the format of a Mac address, as you can see at the bottom of the presentation?

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There is a 12 digit hexadecimal number, which is a six byte binary number, which is mostly represented

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by Coolen hexadecimal notation for six digits.

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As you can see in the presentation pressie five be full of Mac address identifies the manufacturer Caldas

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or UI Organizational Unique Identifier.

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I believe the station authority committee assigns these Mac address to the registered vendors, for

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example, Sethe 466 belongs to Cisco Torrisi five before it belongs to Google 3C, Denine 2B belongs

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to HP, etc..

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Now, the rightmost six digits, which are blank in this presentation, represent network interface

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controller, which is assigned by the manufacturer.

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As discussed earlier, Mac address is represented by Colen hexadecimal notation.

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There are three types of McGriddles unicast, multicast and broadcast.

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I will tell you in one sentence what these addresses mean.

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Unicast, a unicast addressed frame is only sent out to the interfaith, leading to specific Anisi multicast

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address allows the source to send Afrim to a group of devices.

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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

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every computer belonging to that land segment.

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So let us move on to the next address, which is the logical address.

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What are logical interests?

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Logical addresses are necessary for universal communications that are independent of underlying physical

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networks.

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Physical addresses are not adequate in an Internet environment, very different networks can have different

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address formats or universal addressing system is needed in which each host can be identified uniquely

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regardless of the underlying physical network.

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The logical addresses are designed for this purpose.

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Only a logical address in the Internet is currently a 32 bit address that can uniquely define a host

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connected to the Internet.

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Make sure that this sentence, which I'm going to tell right now, is very important not to publicly

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address and visible hosts on the Internet can have same IP address.

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Is it possible that you and your friend lives in the same house in the same way, nor to uniquely identify

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devices can have same IP address?

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There are two types of IP address IP v4, which means IP address, Vergennes phone and IP address within

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six.

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IP address, that is IP v4 is further divided into five classes, class E, two class E, we are going

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to discuss about these classes in the upcoming lectures.

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The next one is the port address.

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The IP address and the physical address are necessary for quantity of data to travel from a source to

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the destination host.

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However, arrival at the destination host is not the final objective of data communications on the Internet.

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A system that sends data from one computer to another computer is not complete, but how today computers

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are devices that can run multiple processes.

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At the same time, you might be using Gmail simultaneously.

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You might be using Microsoft Word office or anything a.

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That is why the end objective of the Internet communication is a process communicating with another

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process.

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For example, computer A can communicate with computers, see by the Internet, but at the same time

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computer it communicates with computers.

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B Boeing FPP for these processes to receive data simultaneously, we need a method to label the different

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processes.

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In other words, the need addresses in the TCP IP architecture label assigned to a process called supporters

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of both addressed in PXP IP protocol is 16 bits in length.

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Let us have a quick recap.

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We discussed what is a Mac address and its uses.

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We saw how logical address is used, this port address and its uses to demonstrate a Real-Life example.

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Let us consider someone from Amazon or Flipkart wants to deliver a package to your house.

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Right.

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The Mac address is a place of the region where you live.

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For example, suppose you are living in region.

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The logical address is the address of your building or your house.

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So let us consider you live at House B in the region.

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But when a delivery person comes to your house, he wants that package to get delivered to you specifically

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because that package is ordered by you.

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Therefore, C is the address which is used to deliver that package to you.

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And that is why all the three addresses are important in computer network.

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In the next lecture, we'll see in detail what is an IP address and we will see the working of IP address

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as well as different types of IP address.