Computer Networks - CCNA

[udeysingh95]

Computer Networks

This course will cover the theory, design, engineering, and installation of networks to connect digital computers. The course will prepare students to plan and implement a network. Also includes peer-to-peer networks, the client-server model, network
operating systems, and an introduction to wide-area networks. The network and implementation tools may vary to meet current development trends.

CCNA

The CCNA (Cisco certified network associate) is meant for all those looking to get a foothold in Networking. This forms the base of the Cisco training pyramid and offers different specializations for network engineers. The basic CCNA course is CCNA - Routing and Switching. We also offer the CCNA Security and the CCNA Voice both of which require the CCNA Routing and Switching as a prerequisite.

Course Content

Chapter 1 - Introduction

1. Data Communication
     - Components
2. Networks
     - Distributed processing
     - Network Criteria
     - Application
3. Protocols and Standards
     - Protocols
     - Standards

Chapter 2 - Basic Concepts

1. Line Configuration
2. Topology
3. Transmission Mode
4. Categories of Networks
5. Internetworks

Chapter 3 - The OSI Model

1. The Model
2. Layer 1 - Physical Layer
3. Layer 2 - Data Link Layer
4. Layer 3 - Network Layer
5. Layer 4 - Transport Layer
6. Layer 5 - Session Layer
7. Layer 6 - Presentation Layer
8. Layer 7 - Application Layer
9. TCP/IP Protocol Suite

Chapter 4 - Transmission Media

1. Guided Media
2. Unguided Media
3. Transmission Impairment
4. Performance
5. Wavelength
6. Shannon Capacity 

Chapter 5 - Error Detection and Correction

1. Types of Errors
     - Single-bit Error
     - Burst Error
2. Detection
     - Redundancy
3. Vertical Redundancy Check (VRC)
4. Longitudinal Redundancy Check (LRC)
5. Cyclic Redundancy Check (CRC)
     - Performance
6. Checksum
7. Error Correction
     - Single-bit error correction
     - Hamming Code
     - Burst Error Correction

Chapter 6 - Basics of IP Networking

1. Compare OSI and TCP/IP Model
2. Compare UDP and TCP protocols
3. Compare Collapsed core and 3-tier architecture
4. Compare Network Topologies
5. Compare Cabling types
6. Configure and Verify IPv4 and Subnetting
7. Compare IPv4 Addresses   

Chapter 7 - LAN Switching

1. Switching Concepts
     - MAC learning and ageing
     - Frame Switching
     - Frame Flooding
     - MAC Address table
2. Ethernet Frame Format
3. Troubleshoot interface and cable issues
4. Configure Layer 2 protocols

Chapter 8 - IP Addressing

1. Explain addressing ipv4 and subnetting in your own words 
2. Configure VLANs

Chapter 9 - Routing Protocols

1. Routing Concept
2. Components of Routing Tables
3. Configure inter-VLAN routing  
4. Compare static and dynamic routing protocols
5. Compare distance vector and link-state routing
6. Compare interior and exterior routing protocols
7. Configure IPv4 Static Routing
8. Configure single-area and multi-area OSPFv2 for IPv4
9. Configure EIGPRP
10. Configure RIPv2

Chapter 10 - Troubleshooting

1. Introduction
2. Layer 1 Troubleshooting
3. Layer 2 Troubleshooting
4. Layer 3 Troubleshooting
5. Layer 4 Troubleshooting

Workflow

Root Directory Structure

6-computer-networks

• 1-introduction.md
• 2-basic-concepts.md
• 3-osi-model.md
• 4-transmission-media.md
• 5-error-detection-correction.md
• 6-basic-ip-networking.md
• 7-lan-switching.md
• 8-ip-addressing.md
• 9-routing-protocols.md
• 10-troubleshooting.md
• README.md

README

This will contain an overview of each file in this folder. This would be updated with each new file added.

Challenge

Chapter-6 onwards CCNA course begins and most of it is practically based and will be based on the implementation of concepts on Packet Tracer software.

• Setup Packet Tracer tool and get hands-on
• Design your first network in Packet Tracer, establish communication between all the nodes and send one packet from x node to y node within that network
• Implement all of the learned routing protocols
• Get hands-on NAT protocol by implementing in an example (arbitrary) network setup
• A network file will be added here in comments once the course chapters will be finished. The file will contain a NOT working network on Packet Tracer software - troubleshoot the network - document your steps taken to troubleshoot the network.

PR Review Guidelines

1. Branch is named properly (all small-letters, format 'cn-'). for eg., branch name for chapter 4 would be cn-transmission-media
2. MD File is named according to the given format
3. The document is formatted consistently
4. Content is given in an easy-to-understand language
5. There are no English errors
6. File has at most 150 lines
7. PR is linked to this issue
8. Approved by the reviewer

PR Reviewers

@udeysingh95

[udeysingh95]

This is CCNA complete course.
http://www.itrainu.in/wp-content/uploads/2018/12/ccna.pdf

[Manish-pal]

Looks good!

[vaib-dev]

@udeysingh95 @Manish-pal
I am not able to find the single error correction and burst error correction, I only found the hamming code everywhere 😕. Please help me out

[vaib-dev]

@udeysingh95,
How do I have to compare the models like, in tabular form or by giving heading OSI vs TCP/IP and then writing a paragraph?

[vaib-dev]

Static NAT Protocol

I have configured the static NAT protocol. In the below image I have shown the NAT translation, I have pinged the server having the ip address 192.168.2.2 by the PC having IP address 192.168.1.2 ,192.168.1.3, 192.168.1.4 as shown below:

[udeysingh95]

Create a PR then for NAT and push it. @Vaibhavpratapsingh22