Computer Network: Networking fundamentals + Wireshark Basics

An Introduction to the "Computer Networks Course: Networking Basics for Students".

This video provides info about the instructor and takes you through the course curriculum.

This video introduces you to a computer network, some of the common components that make a computer network and some of the common applications of computer networks.

The term 'Network topology' refers to the way in which a network is laid out physically. This video lecture explains the different types of network topologies namely Ring topology, Bus topology,Star topology and Mesh topology. It also explains the advantages and disadvantages of each network topology.

This lecture video explain the different types of computer networks viz. Local Area Network, Wide Area Network, Metropolitan Area Network and Wireless Networks.

This video explains one of the most important communication model of computer networks, the OSI Reference Model. We discuss the 7 layers of OSI Reference model and also some example protocols of each layer.

This video explains the TCP/IP Protocol Suite (TCP/IP Model) in detail. We provide an overview of the functionalities of the 4 layers and discuss different protocols present in each of these 4 layers of TCP/IP Protocol Suite.

This video explains the different metrics which are used to measure Network Performance.

You will understand what are bandwidth, latency, error rate and jitter.

This video explains the different networking devices that aid in communication over the computer networks.

You will get to understand how the different devices like bridge, hub,switch, NIC, router and modem play a role in communication.

This video explains what multiplexing is,why do we need multiplexing and the different multiplexing techniques like Frequency Division Multiplexing (FDM) , Time Division Multiplexing (TDM) and Wavelength Division Multiplexing (WDM).

If there are multiple devices in a computer network connecting them using point-to-point links becomes tedious. In such a case central device like switch is used. This video explains what is switching, how a switch works and types of switching namely circuit switching, packet switching and message switching. Also, the pros and cons of each type of switching are discussed.

This video explains what framing is, the types of framing and different methods of framing like Character count, Character stuffing, Bit stuffing etc. Each method of framing is explained with an example.

This video explains why we need flow and error control mechanisms and provides an overview of different techniques that can be used to flow and error control.

This video provides an overview of error detection and correction. It explains what is a transmission error, causes for it and how we can detect and correct the bit errors.

This video explains the error detection techniques like Simple Parity Check, Two Dimensional Parity Check, and Checksum.

Each error detection technique is explained with an example.

This video explains CRC technique to detect the errors in the data stream. CRC stands for Cyclic Redundancy Check. CRC concept is based on binary division. An example is taken to explain the CRC technique.

Hamming code technique is used to detect and correct the bit errors in data streams received. Usually, 7-bit Hamming codes are used in practice. In this video, you will learn how to construct (7,4) Hamming Code and detect and correct the bit error. A step-by-step explanation is provided with an example to generate a Hamming Code for a given data string.

This video explains IPv4 datagram header format, the individual fields of IPv4 header and an IPv4 datagram captured.

This video explains why IPv6 is necessary and how IPv6 is better than IPv4. Also each field in IPv6 datagram header format is explained.

This video explains the User Datagram Protocol (UDP), the features of UDP and the header format of UDP datagram.

This video explains the Transmission Control Protocol (TCP), the services provided by TCP, features of TCP and the header format of TCP packets.

This video discusses basics of cryptography like what is cryptography and why do we need it. It explains with an example what are the repercussions of communication over the computer networks without the security provided by cryptography.

This Video discusses Private Key Encryption (Symmetric Encryption), in which both sender and receiver use a single shared key to perform encryption and Decryption. The video also discusses an example to illustrate the concept, and finally ends with pros and cons of this method of cryptography.

This video explains the RSA Algorithm in detail with an example to show how key generation, encryption and decryption are carried out.

This video explains the basics of File Transfer Protocol, the File Transfer Protocol Architecture, FTP File Formats and Representations and the FTP Client-Server Implementation Model.

This video introduces you to the Wireshark, a packet analyzer tool. You will learn how Wireshark is useful in computer networking, whats the history behind wireshark, what are its advantages and how the Wireshark interface looks like.

Learn Wireshark installation Setup on windows with brief information on every tool and component that is being installed.

Capturing Network Traffic: In this video we will see how to capture network packets using the Wireshark tool.

Analysing the packets : This video explains how to analyse packets in an existing pcap file. You will learn how to make use of the different options in Wireshark tool and also to search for specific information using filters.