Description

This course, in which practical work plays a central role, will allow you to understand and implement the essential elements of business computer networks. All the truly important aspects will be covered, including the functionality and implementation of interconnection equipment with emphasis on routers, TCP/IP and higher level protocols like DNS, DHCP, HTTP, etc.

Who is this training for ?

For whom ?

Computer technicians.

Prerequisites

Training objectives

Know the different network equipment

Understand the importance of the TCP/IP protocol in the development of a network

Install a physical network: workstation, router, switch, dns, dhcp

Understand the main services and protocols: tcp/ ip, udp, arp, http, https

Training program

• Introduction
  • - A network for what? The different elements and their role.
  • - User needs (communicating on site, between remote sites, with the outside world).
• The different networks

  - n'as pas encore du programme

• Connection alternatives
  • - Twisted pair, coaxial and optical fiber.
  • - Principle and rules of cabling.
  • - Wireless and power line transmission (PLC).
  • - Modems.
• Local networks (LAN)
  • - Why and when to use a local network? Political choices of manufacturers.
  • - Ethernet addressing.
  • - Constraints, advantages and mode of operation of Ethernet (CSMA/CD).
  • - The explosion of speeds.
  • - Gigabit Ethernet.
  • - Introduction to wireless networks (802.
  • - 11x).
• The different equipment
  • - Bridges and switches.
  • - Routers, roles and interest.
  • - Gateway concept.
  • - Presentation of some types shared Ethernet architecture, switched Ethernet.
  • - Data frame switching.
  • - The Spanning Tree protocol.
  • - Principle and mode of operation.
  • - Presentation of VLANs.
  • - Practical work Creation of a local network with switches and workstations.
• Wide Area Networks (WAN)
  • - Why and when to use a WAN network? WAN objectives and services.
  • - Panorama of WANs and protocols used (MPLS, ATM.
  • - ) .
  • - ADSL and its derivatives.
  • - Principle and architecture.
• TCP/IP basics
  • - Network addressing constraints.
  • - The IP protocol.
  • - Addressing and configuration.
  • - Broadcast and Multicast.
  • - Principles of TCP and UDP protocols.
  • - Notion of port number.
  • - The client/server model.
  • - Practical work Installation of the Wireshark network analyzer.
  • - Configuring IP address parameters on workstations.
  • - Identify and work with MAC addresses, ARP requests and the ARP table.
  • - Connection tests between stations.
• Routers
  • - Why and when to use a router? Presentation of routing mechanisms and a routing table.
  • - Which protocol for which type of routing? The main protocols routing: RIPv2, OSPF, BGP.
  • - Identify and work with MAC addresses, ARP requests and the ARP table of routers.
  • - Practical work Physical connection of routers .
  • - Configuring IP addresses on routers.
  • - Working with MAC addresses, ARP requests and the ARP table of routers.
  • - Analyze the IP address table routing of the workstation and that of the router.
  • - Connection tests between the stations and the router.
• The main high-level services and protocols
  • - The DNS name server.
  • - Role and interest.
  • - Operating principles.
  • - Domain concept.
  • - The DHCP server.
  • - Assign IP addresses dynamically.
  • - Other services provided by DHCP.
  • - SMTP, POP3, IMAP4 messaging protocols .
  • - HTTP, HTTPS, FTP, TELNET and SSH.
  • - Voice over IP, introduction to the SIP protocol.
  • - Practical work Example of 'use of FTP between workstations and the FTP server.
  • - Telnet connection on routers (tracing and analysis of frames and packets).
  • - Integration of workstations work as a DNS and DHCP client.
• Introduction to Network Security and Administration
  • - Fundamentals of IT security.
  • - Risks and threats.
  • - The firewall and the VPN.
  • - Principles.
  • - Why is administration essential? The SNMP network equipment administration protocol.
  • - Administration solutions (Nagios, Cacti.
  • - ).