Réseaux, concepts et mise en œuvre
This training on networks will allow you to understand and implement all the fundamental concepts specific to corporate computer networks. All the really important aspects will be discussed, in particular the functionalities and the implementation of the interconnection equipment, with an emphasis on routers, the essentials of TCP / IP and higher level protocols such as DNS, DHCP, HTTP etc. ... Finally the participants will be able to configure and interconnect client workstations under Windows or Unix / Linux.
This course concerns engineers, technical sales representatives, project owners, IT specialists, IT correspondents looking for a technical introduction to networks. It is an excellent basis for taking more advanced courses in the same field.
Participants must know how to use at least the main applications of a Windows workstation (email, Web browser, office automation, etc.)
- • Understand and implement all the fundamental concepts specific to corporate computer networks
- • Configure and interconnect client workstations under Windows or Unix / Linux.
- A network for what?
- The different elements and their roles
- Users and their needs (communicate on site, between remote sites, with the outside world)
- Architecture aspects: communication, interconnection of elements, security administration
The different networks and general principles
- Classification of different types of networks
- Advantages and disadvantages of different technologies
- Which technologies for which needs?
- PC communication Workstation / Servers
- Share resources.
- Nature and purpose of a protocol
- The ISO / OSI model what interest?
- The 7 layers
Different connection alternatives
- The twisted pair, coaxial and optical fiber
- Principle and wiring rule
- Modems and different standards
The different equipments their roles and their respective advantages.
- Repeaters and hubs
- Bridges and switches (Switch)
- Routers: roles and interests
- What is a firewall for?
- Presentation of some types of shared Ethernet architecture, switched Ethernet
- The Spanning Tree (principle and mode of operation)
Local networks (LAN)
- Why and when to use a local network?
- Political choices of manufacturers
- Ethernet addressing
- Constraint and advantage and mode of operation of Ethernet (CSMA / CD and BEB)
- Several speeds from 10 MB to several GB (10/100 base T / Gigabit Ethernet / ...)
- Wireless LANs (802.11x)
Wide Area Network (WAN) Interconnection
- Why and when to use a WAN?
- WAN Goals and Services
- Virtual circuit concept
- Overview of WANs and protocols used (ISDN, ATM, Frame Relay ...)
- ADSL and its derivatives (principle, architecture, encapsulation)
Réseaux sans fil - WiFi
- Réseaux sans-fil
- Extensions des WLAN
- Méthodes de communication 802.11, 802.11a;b;g;n
- Sécurité : WEP, WPA, WPA2, EAP, 802.1x, RADIUS
Basics of TCP / IP networks
- Network addressing constraints
- IP protocol
- Broadcast and Multicast
- Principles of TCP and UDP
- Concept of port number
- The client / server model
- Examples of standard IP configurations under Unix / Linux and Windows
Routers: interconnecting networks
- Why and when to use a router?
- Overview of routing mechanisms and a routing table
- Programming a routing table (static or dynamic routing protocol)
- Which protocol for which type of routing?
- The main protocols (RIP2, OSPF, BGP ...)
- Multi-protocol routers
- IP switching
High level DNS and DHCP services and protocols
- DNS name server
- Role and interest of the DNS
- Domain concept
- Server roles
- DNS records
- Name resolution
- The DHCP configuration server
- DHCP: the IP configuration server DHCP relay
- Other services provided by DHCP
- Resource sharing
- Sharing an Internet connection: router, proxy, server
- Principle of voice digitization
- Codecs role and interest
- The constraints specific to VoIP
- Overview of the different protocols specific to VoIP (RTP, RTCP, H323, SIP, MGCP)
- Simple examples of business implementation
- Understand the differences between system, network and application security
- The basics of network security
- Elements of network security: firewalls, proxies, probes, correlation tools ...
- Principles of an application or "intelligent" firewall
- Philosophy of a VPN (Virtual Private Network)
- Address translation: PAT, NAT, SATVPN, VPDN
- Main protocols: GRE, L2TP, PPTP and IPSec
Introduction to network administration
- Tools and techniques
- Why is administration essential?
- Hardware analyzers, Network traffic analyzers
- Proprietary supervision tools
- More protocols
- SNMP MIB RMON and RMON2