Réseaux, concepts et mise en œuvre

Introduction

• 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
• Wireless
• Modems and different standards

The different equipments their roles and their respective advantages.

• Repeaters and hubs
• Bridges and switches (Switch)
• Routers: roles and interests
• Bridge
• 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
• WLAN
• Topologies
• SSID
• 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
• Addressing
• Configuration
• 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

VoIP

• Principle of voice digitization
• Codecs role and interest
• The constraints specific to VoIP
• Jitter
• Overview of the different protocols specific to VoIP (RTP, RTCP, H323, SIP, MGCP)
• Simple examples of business implementation

Network security

• 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