Networking basics cisco
This presentation is the property of its rightful owner.
Sponsored Links
1 / 33

Networking Basics & Cisco PowerPoint PPT Presentation


  • 142 Views
  • Uploaded on
  • Presentation posted in: General

Networking Basics & Cisco. Shoaib Iqbal IT Engineer. Date: 10-02-2014. Networking Basics. Network. Connectivity of two or more than two devices so that they can communicate with each other. Network = Connectivity + Communication.

Download Presentation

Networking Basics & Cisco

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Networking basics cisco

Networking Basics &Cisco

Shoaib Iqbal

IT Engineer

Date: 10-02-2014


Networking basics

Networking Basics


Network

Network

Connectivity of two or more than two devices so that they can communicate with each other.

Network = Connectivity + Communication

Network = Hardware + Software


Network types

Network Types

  • Local Area Network (LAN)

    A high speed network that covers a relatively small geographic area, contained within a single building or campus.

  • Wide Area Network (WAN)

    A network that spans large geographical locations, usually to interconnect multiple LANs.

  • Metropolitan Area Network (MAN)

    A network that spans several LANs across a city-wide geographic area.


Five components of communication

Five Components of Communication

  • Sender

  • Receiver

  • Medium

  • Protocol

  • Message


Protocol

Protocol

  • Rules that govern the method by which devices share data and services.


Types of communication

Types of Communication


Topology

Topology


Mesh topology

Mesh Topology


Star topology

Star Topology


Bus topology

Bus Topology


Ring topology

Ring Topology


Hybrid topology

Hybrid Topology


Internet

Internet

  • internet

    is two or more networks that can communicate with each other.

  • Internet

    is collaboration of more than hundreds of thousands of interconnected networks.


Osi model

OSI Model

  • Established in 1947, the International Standards Organization (ISO) is a multinational body dedicated to worldwide agreement on international standards.

  • In 1978, Open System Interconnection (OSI) model was introduced.

ISO is the organisation. OSI is the model.


Osi model1

OSI Model

7. Application

6. Presentation

5. Session

4. Transport

3. Network

2. Data Link

1. Physical


Osi model division of layers

OSI Model-Division of Layers

7. Application

UpperLayers

6. Presentation

5. Session

Middle Layers

4. Transport

3. Network

Lower Layers

2. Data Link

1. Physical


The function of a layer

The Function of a Layer

  • Each layer deals with one aspect of networking

    • Layer 1 deals with the communication media

  • Each layer communicates with the adjacent layers

    • In both directions

    • Ex: Network layer communicates with:

      • Transport layer

      • Data Link layer

  • Each layer formats the data packet

    • Ex: Adds or deletes addresses


Osi model2

OSI Model


Osi in action

OSI in Action

  • A message begins at the top application layer and moves down the OSI layers to the bottom physical layer.

  • As the message descends, each successive OSI model layer adds a header to it.

  • A header is layer-specific information that basically explains what functions the layer carried out.

  • Conversely, at the receiving end, headers are striped from the message as it travels up the corresponding layers.


Osi layers description

OSI Layers Description


Commonly used network devices

Commonly Used Network Devices

  • Hubs

  • Switches

  • Routers

  • IP Phones

  • Network Security Products


Network devices manufacturers

Network Devices Manufacturers

  • Cisco Systems

  • HP

  • Huawei

  • ZTE

  • Juniper Networks

  • D-Link

  • Telco Systems

  • Alcatel-Lucent

  • Arista Networks

  • Mellanox


Cisco systems

Cisco Systems


Company overview

Company Overview

  • Cisco is an American multinational corporation headquartered in San Jose, California, that designs, manufactures, and sells networking equipment.

  • Cisco Systems was founded in December 1984 by two members of Stanford University computer support staff: Leonard Bosackwho was in charge of the computer science department's computers, and SandyLerner, who managed the Graduate School of Business' computers.

  • The name "Cisco" was derived from the city name, San Francisco

  • The logo is intended to depict the two towers of the Golden Gate Bridge.


Cisco systems logo concept

Cisco Systems Logo Concept

Cisco’s logo is depicting two towers of Golden Gate Bridge


Golden gate bridge

Golden Gate Bridge


Company overview1

Company Overview

  • Cisco Systems, Inc. is the worldwide leader in networking for the Internet.

  • Today, networks are an essential part of business, education, government and home communications.

  • Cisco Internet Protocol-based (IP) networking solutions are the foundation of these networks.


Company overview cont d

Company Overview cont’d

  • In 1984, Cisco’s first product which consisted of exact replicas of Stanford's "Blue Box" router and a stolen copy of the University's multiple potocol router software.

  • Between 1992 and 1994, Cisco acquired several companies in Ethernet switching, such as Kalpana, Grand Junction, and most notably, Mario Mazzola's Crescendo Communications which together formed the Catalyst business unit.


Cisco s products list

Cisco’s Products List

  • Routers and switches

  • Security and surveillance

  • Voice and conferencing

  • Wireless

  • Network storage systems


References

References

  • https://en.wikipedia.org/wiki/Cisco

  • http://www.cisco.com/cisco/web/solutions/small_business/resource_center/articles/connect_employees_and_offices/networking_basics/


About odsi

UK Office

About ODSI

ODSI11 St John's Road Stourbridge West Midlands DY8 1EJ

Phone: 0203 005 9500

Email: [email protected]

Web: www.odsi.co.uk

Cisco Products Dealer


Thank you

Thank You


  • Login